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ChainSafe Systems is a blockchain R&D firm on a mission to realize the potential of Web3 infrastructure through sustainable, open-source development. Our vision is to create a world with organizations that empower people to build and innovate through blockchain agnostic tools and other distributed technologies.
We are global leaders in the industry, unique in our work across multiple blockchain ecosystems, and currently are pioneering technology and infrastructure related to Ethereum,, Polkadot and Filecoin. We are actively pursuing the development of our own product suite, having recently released Files and Storage, which allows users to upload and store files on IPFS and Filecoin with the goal of furthering development to provide a decentralized alternative to cloud storage.
ChainSafe is a unique company in a unique space, growing quickly and building a global reputation in this nascent space. Beyond offering experience across every major blockchain space to our team, we provide an open, inclusive, and supportive environment where we help folks reach their full potential as a human and as a professional.
Here’s what you might want to know before reading on:
Our stack is progressive and open-source and includes Go, Rust, and TypeScript.
We spearhead ecosystem projects like Lodestar, Web3.js, Forest, Mina-rs, and Gossamer.
We are global, remote-friendly, and open to contractors.
Culture fit and alignment to our core values are extremely important to us. We are fueled by an immense intellectual curiosity of what technology can do and the impact it can have. You will thrive here if you are intensely driven by tackling technical challenges that no one else has solved yet and are inspired by the possibility of building the next generation of web infrastructure and decentralized systems.
Responsibilities
Proactively Research a wide range on edge blockchain technologies that are relevant to bridging techniques
Play a key role in architectural and design decisions, building toward an efficient bridging solution for networks of different nature
Facilitate development process over research done. Help developers during development and support cycles
Identify, prioritize and execute tasks in the software development life cycle
Write scalable, robust, testable, efficient, and easy to maintain code
Follow latest security best practices
Mentor junior engineers and do active code reviews
Automate tasks through appropriate tools and scripts
Document development phases and monitor systems
Required Skills
Proficiency in Go
Be able to proactively dive into the novel territory and share knowledge on what you've learned
Extensive knowledge of Ethereum network
Experience with various blockchain protocols
Deep knowledge in blockchain underlying cryptography
Understanding of distributed systems, peer-to-peer systems.
Practical experience and knowledge's in various DeFi’s
Willing to research new technologies and possibilities for our product. Passion in writing documental reports and solution investigation based on research done.
We strongly encourage you to apply even if you don’t fit all the requirements. You don’t have to match all the listed requirements exactly to be considered for this role.
Hiring Steps
Candidates for this position can expect the hiring process at Chainsafe to follow the order below. Please keep in mind that candidates can be declined from the position at any stage of the process.
Qualified candidates will be invited to schedule a 30-45 minute screening call with one of our tech recruiters
Next, candidates will be invited to schedule a 60-minute Cultural Interview with one of our Project Managers
Then, Candidates will be asked to complete a technical task that takes under 4 hours, but we provide up to 5 business days to complete
Last, candidates will be invited to schedule a 60-minute interview with the Team Lead
We welcome your fresh perspectives and ideas
At ChainSafe, diversity and inclusion are more than a statement; equality and accessibility are guiding principles embedded in who we are - and why we do what we do. We recognize the benefits of a diverse team and aspire to embed respect for all people into our culture, values, and day-to-day practices. We encourage women, LGBTQIA+ people, people of colour, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.
ChainSafe is a remote-first company with an international team. We offer opportunities for personal and professional learning and growth, value autonomy and responsibility, and have a results-driven environment, flexible work hours and time-off policy, as well as competitive salary.
Salary will be determined through the interview process after a review of experience, knowledge, skills, abilities, equity, and location, as well as alignment with market data. The estimated salary range for this position is $84K - $120K USD.
To apply for this position, please fill out the linked application form and please attach your CV/resume as well as a link to your Github/Gitlab profile or some other software project you h
We're building the connected finance businesses deserve. Unleashing them with tomorrow's technology, today. Our flexible payments solutions help global enterprises — like Samsung, Deliveroo and Adidas — launch new products and create experiences customers love. And it's not just what we build that makes us different. It's how.
We liberate smart, passionate people to collaborate, innovate and do their best work — faster. That's why we're one of the most valuable fintech firms around. But we're just getting started. By cutting through financial complexity, we'll empower companies to change the world. Join us. Unlock your potential.
Build tomorrow, today.
Senior Software Engineer at Checkout.com:
Our solutions allow merchants to route dynamically a transaction to the best payment provider to optimise their conversion rate. Your main task will be to design and create or maintain micro-services within our infrastructure. Our product handles millions of transactions within a week. The API has its key part on it but the load is also on a multitude of other services.
You will work closely with our technical teams to learn about the possible technical bottle-necks. We have implemented different technologies such as Go (go-kit toolkit, gRPC…), Kubernetes, AWS, PostgreSQL and many others. Your role would be to lead us to new technologies that our product can benefit from.
Our product handles financial data making uptime one of our key KPIs. We expect that you will be able to work on high-availability and technically challenging programs.
You will join a talented team of 10 engineers, Data Scientists and DevOps, that are tech-passionate, working closely with most of them. Our main goal is to ensure that we can contribute to your personal growth as an engineer.
Payments are often compared to a black-box. Merchants around the world have issues understanding how their performance is and what optimization can be done. Our team is focused on building the best payment performance tool there is. It allows merchants to better understand their online processes as well as offline payments.
We offer 2 products to our merchants:The first, named Telescope, allows us to analyse, understand and make recommendations to a merchant. It does not require any technical integration from them and works mainly through webhooks, pulling data from APIs or parsing exported files.
About You
3 years software development experience in Go
Know your way around web-related tech (HTTP, TLS, proxies, API conventions...)
Implemented APIs
Experience deploying applications as a part of a service-oriented architecture
Curious and unafraid of digging deeper to understand how systems of all kinds work
Keen to communicate with third-party gateways from a technical point of view as well as to maintain the best relationship as possible
Knowledge in the payment ecosystem
Worked on critical services
Some basic knowledge about ElasticSearch
What you will be doing
Payment gateway integrations: Interacting with external APIs through an in-house framework, handling webhooks notifications and parsing bank reconciliation summary files
Communication with third party payment gateways
Design and implement new workflows on our services
If you don't meet all the requirements but think you might still be right for the role, please apply anyway. We're always keen to speak to people who connect with our mission and values.
#LI-RS2
What we stand for
At Checkout.com, everything starts with our values, including the experience we offer our people.
#Aspire
We supercharge your professional growth with career development programs and leadership training. You can learn your way, with tailored pathways and online platforms. And be inspired at relevant conferences.
#Excel
We don't stop at 'good' here. We strive for excellence amongst our teams every day and recognize colleagues who take it to the next level through our quarterly peer-nominated Hero awards.
#Unite
We're proud of our global connections and inclusive environment. So we champion this through our colleague-led community groups and celebrate many cultural events together.
More about Checkout.com
We empower businesses to adapt, innovate and thrive with the connected payments they deserve. Our technology makes payments seamless. We provide the fastest, most reliable payments in more than 150 currencies, with in-country acquiring, world-class fraud filters and reporting, through one API. And we can accept all major international credit and debit cards, as well as popular alternative and local payment methods. Checkout.com launched in 2012, and we now have a team of 1000 people across 17 international offices. To date, we’ve raised a total of $830 million, with our recent Series C valuing us at $15 billion.
We believe in equal opportunities
Checkout.com is an equal opportunities employer. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion, or belief. We make recruiting decisions based on your experience, skills and personality. We believe that employing a diverse workforce is the right thing to do and is central to our success.
Backend Engineer, Security Monzo Remote / United Kingdom £40,000 to £100,000 a year
August 2019
2 Applicants This Week
More Than 6 Months Old
Job Description
At Monzo we’re aiming to build the best current account in the world. We are always keen to hear from capable, creative engineers who want to help us accomplish that goal. We want our bank to be safe and secure for our customers, so security is very important to us
Security at Monzo
Monzo’s security team has a wide range of responsibilities, from infrastructure security to application security. As a bank, we are solving diverse, novel problems to ensure that our customers are safe and secure.
One of the guiding principles of security at Monzo is that security at the expense of user experience is a last resort. We aim to move mountains in the background such that we can build world-class features without compromising on security.
As a member of our security team you would be responsible for constantly improving the security of Monzo, and you would work closely with other teams to ensure that our systems are secure by design. Of course, security incidents can and do occur, and the security team is involved with many different types of incident response.
Our engineers have a variety of different backgrounds
We have several non-graduates; only some of us studied Computer Science; one of the team has a degree in Marketing; some of us have worked in huge companies; some have only ever worked in startups; others are former consultants. As long as you enjoy learning new things, we’d love to talk to you.
We encourage an open and transparent working environment
You can get involved in any aspect of the business you are interested in and, following Stripe’s example, all emails in the company are visible in an email archive. We regularly run hackathons in which people build things on our third party API and we contribute to open source software as much as possible. We’ve also made our product roadmap public and give sneak peeks of features in our community forum. Our blog is a good place to learn even more about what we do!You can get involved in any aspect of the business you are interested in and, following Stripe’s example, all emails in the company are visible in an email archive. We regularly run hackathons in which people build things on our third party API and we contribute to open source software as much as possible. We’ve also made our product roadmap public and give sneak peeks of features in our community forum. Our blog is a good place to learn even more about what we do!
Monzo works in project-based sprints in small, interdisciplinary teams
We have around 190 engineers out of roughly 1000 people in total - and we have big ambitions. As a security engineer here you'd be able to work directly with lots of teams across the company, and we run regular knowledge-sharing sessions so you’ll learn heaps about everything from how banks work to effective communication.
At Monzo you will get to work with a lot of exciting new technology.
We rely heavily on the following tools and technologies:
Go to write our application code (there’s an excellent interactive Go tutorial here)
Cassandra for most persistent data storage
Kafka for our asynchronous message queue
Linkerd/Finagle for RPC
Kubernetes and Docker to schedule and run our services (Oliver, our Head of Engineering, gave a great talk at KubeCon on how we use these technologies)
AWS for most of our infrastructure
React for internal web dashboards
We also have two physical datacenter sites with actual cables to connect to various third parties
You should apply if:
the work we’re doing sounds exciting!
you want to be involved in building a product that you (and everyone you know) use every day
you’re constantly looking for flaws in systems and can reason about how best to address them
you’re keen to learn more about new technologies and the arcane inner workings of the financial industry
you’re comfortable working in a team that deals with ambiguity
you’re interested in distributed systems and writing resilient software
you have some experience with strongly-typed languages (Go, Java, C, Scala etc.).
Logistics
We can help you relocate to London, we can sponsor visas, and we're open to distributed working (as long as you can spend around 20% of your time in London).
We have payroll set up in five countries: the UK, Ireland, France, Poland and Spain. Right now, we can only hire people who work from those countries and we’ll keep this updated with new ones as we expand and are able to hire from more places 🌎
We offer competitive salaries based on skills and experience, which could be anywhere between £40,000 - £100,000 per year.
We care deeply about inclusive working practices and diverse teams. If you’d prefer to work part-time or as a job-share, we’ll try our best to make this happen. Just let us know in your application so we can plan for it.
We're usually always hiring for Backend Engineers in Security, so there's no closing date for this job.
Our interview process is normally a phone interview, a coding task and call to discuss it, and 2-3 hours of onsite interviews. We promise not to ask you any brain teasers or trick questions. We might design a system together on a whiteboard, the same way we often work together, but we won’t make you write code on one
Questions about this role? Head over to our careers page to read our FAQs (www.monzo.com/careers)
Perks & Benefits
Stock Options
Salaries Reviewed every six months
Working from Home
Holiday
Unpaid holiday
Health insurance
Pensions
Maternity, Paternity and adoption leave
Catered lunch
Headspace subscription
Socials
Yoga and Pilates
Equipment
Cycle-to-work
Learning and training
Knowledge sharing
Library
Life Insurance
Interview Process
Our interview process is normally a phone interview, a coding task and call to discuss it, and 2-3 hours of onsite interviews. We promise not to ask you any brain teasers or trick questions. We might design a system together on a whiteboard, the same way we often work together, but we won’t make you write code on one
Software Engineer Acronis Tempe, Arizona, United States $100,000 to $120,000 a year
May 2021
3 Applicants This Week
More Than 6 Months Old
Job Description
Acronis sets the standard for cyber protection and our mission is to empower people by providing them with cutting edge technology that will enable them to monitor, control, and protect the data that their business’ and lives depend on.
We have a need for a Software Developer to focus on building out new platform services. You will work on a team developing the next generation of core platform capabilities for Acronis, powering the transformation to a Cyber Protection Platform. Our team primarily develops new or generalizes existing applications relevant to core functionality to enable our wide range of applications and integrations.
For this position, we are looking for somebody who either has or is able to quickly demonstrate abilities with some or all of the following technologies:
Golang: all of our new service development is done in Golang. PostgreSQL: we make heavy use of databases, and we use PostgreSQL primarily.- Kubernetes/Docker/CI Pipelines/MAKE/shell Operating Systems and User-Machine Software: Acronis interacts heavily with client machines, experience with non-web-service software development, particularly user applications in Windows and Linux. HTTP APIs: we need people who understand HTTP APIs from verbs to oauth to TLS, as well as familiarity with nginx, DNS and other key application-level technologies. Python, C#, Java: this will get you bonus points or would be considered in place of Golang, in conjunction with existing basic fluency in Golang and strong skills in SQL and other key areas listed here.
Additional technologies which successful applicant should be able to quickly develop and display competency:
GraphQL: For schema aggregation and presentation usage. WebSockets/gRPC: Event reactive frontend architectures.
In addition to technical skill, we have certain working characteristics that we value:
Teamwork: we prefer to work in small teams and leverage the effectiveness of multiple minds on a problem.
Independence: we prefer to give the engineer responsibility and empower their (responsible) decision-making.
Willingness to learn: we are constantly engaging new problems and technology, and success for us requires a willingness to seek out solutions to new challenges.
Collaboration: We work with other teams inside and alongside Acronis, and as a platform team, they are our critical customers. Their customer satisfaction is critical to our success.
Beyond the skills and requirements for the base role, we have needs and opportunities to grow in the areas below, assuming the candidate is interested:
Requirement refinement and technical design: Working with architect and product planning teams to clarify and refine requirements, participate or lead technical design and architecture of new products and features.
Technical leadership: ownership of a domain of expertise or service capability and the opportunity to drive its design and improvement.
People leadership: Taking on the unique challenge of leading people to project success for the delivery of software.
Every member of our “A-Team” has an instrumental role and impact on the success of Acronis’ business, so we are looking for a highly-motivated individual who thrives in a fast-paced and high-volume, work environment. The ideal candidate for this position will not only possess the skills and experience required but will also possess a positive attitude and ability to solve complex problems and work in a fast-paced and rapidly changing environment. And just like every position at Acronis, the ideal candidate will embody all of our company values: responsive, alert, detail-oriented, makes decisions, and never gives up.
RESPONSIBILITIES:
Working both independently and as part of small teams, develop new software and solve bugs with existing software.
REQUIREMENTS:
Experience developing complex software professionally for 3 or more years.
Education: Undergraduate degree preferred. Engineering degrees preferred, but any experienced software developer who can easily demonstrate competence will be considered.
Acronis is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, marital status, national origin, physical or mental disability, medical condition, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, gender identity or expression, or any other characteristic protected by applicable laws, regulations and ordinances.
Distributed Systems Engineer Monax London, United Kingdom £40,000 to £80,000 a year
October 2018
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
Distributed Systems Engineer - to help us build a public, decentralised, blockchain-backed legal agreements network
London
£40,000 - £80,000 plus options (ESOP).
Relocation package available for the right candidate. This role could also be based in our Edinburgh office.
Candidates currently based outside of London or Edinburgh must indicate their preferred location and willingness to relocate in their cover letter.
We are looking for kind, talented software engineers to help us make smart iterations on our legal agreements network as we deploy successive test networks.
Monax were pioneers of permissioned blockchains and smart contracts and we are building our Agreements Network to allow new and more efficient forms of legal transacting.
Exploiting the benefits of various decentralised, distributed, and masterless technologies - chiefly Hyperledger Burrow, which Monax built from scratch and still maintains based on the Tendermint consensus engine.
You will have the chance to work on a system that has distributed consensus and validation in a low trust environment at its heart and offers very interesting challenges, these could be:
Working with multiple clusters of nodes, most of which are not under your control to handle semi-automated network upgrades and governance votes. How do you upgrade a network you do not control?
Using cryptographic primitives like Verifiable Random Functions to orchestrate churn amongst network validators
Build package manager and compiler integrations for deploying and testing smart contracts
Implement low-level virtual machine instructions and improvements to our Ethereum Virtual Machine implementation
Working with our CTO on our Node Distribution Team you can expect to quickly own significant parts of our stack, and make decisions that will affect the company’s future viability in a fast-moving space (public permissioned consensus networks). You would also work closely with our Product Team who are responsible for building the foundational smart contracts, the business process modelling engine that drives the Agreements Network and also our particular front end (the network is open to extension by any of our co-founders however).
Your role will give you the chance to work across all teams in the business and it will also give you the opportunity to leave your mark in a growing industry, where you need to evaluate existing best practices and apply them to new technological paradigms and new programming languages. Navigating between the hype, the detractors and the zealots we believe there is real value in our approach and we intend to prove it.
You will join a business building a genuinely novel system, that in part intends to create an entirely new market by enabling legal products that challenge existing legal services.
This role would suit a talented software engineer, with solid technical skills in and a minimum of 3-4 years of software development experience. We are also open to engineers who can bring significantly more experience to the role. If you are a good match for Monax, we are willing to create a role that suits you.
Who do we need? Someone who has:
Go experience or the ability to pick it up in a few weeks
Kubernetes experience or the ability to pick it up in a few weeks
A degree-level qualification in a numerate discipline or equivalent evidence of analytic and reasoning skills and theoretical thinking
A good knowledge of algorithms and data structures
A hacker mentality towards making things work
An ability for long form design work ‘on pencil and paper’
An ineffable marmot-ness
It is crucial that you are able to take part in forceful yet respectful technical discussions with colleagues and that you are able to change your mind about something if required, and also are able to change other’s minds.
Real things you might work on:
Build a Kubernetes operator for Hyperledger Burrow
Devise a way to compress/normalise data in our merkle tree to control our long-term storage usage
Implement an atomic swap with public Ethereum to represent value on our chain
Write optimised native (Go) functions, callable from evm, to implement graph traversal over our business processes
Build fee allocation and distribution models that help maintain our network and provide the correct incentives
What can Monax offer you?
Extremely marketable blockchain and cryptocurrency skills.
The chance to make blockchain systems live up to their hype by making them highly operable, our network will be operated peer-to-peer by many parties and this needs to be as painless as possible.
Experience in blending distributed, decentralised, and centralised systems. To spend time working on something foundational at the level of a network architecture.
The chance to spend time thinking ‘around the software’; about law, economics, and game theory.
You will have a high level of autonomy. The business has just enough hierarchy, consensus and individual project responsibility (c.f. design-by-committee) favoured over diktats.
Flexible working - the successful candidate will be based in our London or Edinburgh work space primarily, but there is scope for flexible working and choosing your own hours and place of work when established.
Relocation assistance is available for the right candidate.
Who will you be working with?
Around fifteen people in our passionate cross functional team, including time with:
Our CTO in London, who would be your primary daily contact
Our CPO in New York, with whom you’ll liaise with to ensure the distribution platform and product stack work harmoniously.
Product Team members currently building the application stack.
Our Legal Engineers in New York providing crucial context to how legal products on the platform will be used
Our CEO in Edinburgh for just about anything else...
About Monax
Monax would like to build a better system for contracting for the good of humanity and other forms of life. To learn more please visit:
Golang Engineer Hunter Remote (Europe, United States, Asia) $110,000 to $150,000 a year
August 2022
2 Applicants This Week
More Than 6 Months Old
Job Description
Hunter's product team is hiring a Backend Go developer! You'll become one of the key team members responsible for moving the data side of the Hunter application forward.
We’re a bootstrapped and sustainable product-focused company. We’ve set up a great work environment for our team, focusing on autonomy and growth. We take full advantage of the fact we’re entirely remote by focusing primarily on async communication and limiting the number of video meetings. Everyone in the team participates in discussions shaping the future of the product.
We love working as a small team and don't hire frequently. So this is a rare and exciting opportunity to join the team. You'll be part of the product team alongside Bastien (head of engineering), Bernardo (Backend Go developer), Mark (Ruby on Rails developer), Chris (Designer), François, and Antoine (co-founders).
About the role
At Hunter, we've been working from the start with one Go application (managing all our data) and one Ruby on Rails application (responding to users' requests). This setup has allowed us to be highly productive while our team stays small. We believe in always finding the most elegant way to build our product, and Go has been the ideal language to crawl, parse, and organize billions of public web pages.
As part of a small group within a young company, you will work on various projects over time, but you can expect that:
You'll work on our main Go codebase that gathers, processes, and provides all the data of hunter.io.
Within a few weeks, you'll become responsible for significant projects that will improve Hunter by building new critical features in our existing services. Over time, you'll help expand our product line.
You'll work with the rest of the product team to gradually increase the importance of NLP in our data pipelines.
You'll get a high level of autonomy in your work and help shape future development efforts.
You'll gather feedback from our Support team to find issues in our current system and improve it.
Hunter is a fully remote team, and this is a remote job. It is open to anyone located in Europe.
About you
You have multiple years of experience working with Backend Development. Ideally, you have experience in Go. If you don’t, you should be confident in your ability to pick up this new skill quickly.
You enjoy dealing with complex problems and finding elegant solutions.
You're confident you can have a high level of autonomy and enjoy making decisions for yourself.
You're excited to take ownership of projects, set directions, and make calls. You're able to communicate clearly with your colleagues.
You have experience in remote working. You're comfortable working primarily with asynchronous communication and don't need a lot of handholding or supervision.
About us
Salespeople, marketers, and recruiters use Hunter to reach out to the people that matter for their business. We index B2B data from millions of public web pages and make it convenient to explore with simple but powerful tools.
Hunter is the most popular solution to find professional email addresses. It is used by almost 3 million people and leading companies such as Google, Adobe, Microsoft, or IBM.
Hunter was founded in 2015 and is a self-funded company. We're a team of 11 peopleworking remotely from Europe, America, and Asia. Twice a year, the team meets in a company retreat in Europe.
Backend Go Developer Hunter Remote (Europe) $80,000 to $130,000 a year
June 2022
3 Applicants This Week
More Than 6 Months Old
Job Description
Hunter's product team is hiring a Backend Go developer! You'll become one of the key team members responsible for moving the data side of the Hunter application forward.
We love working as a small team and don't hire frequently. So this is a rare and exciting opportunity to join the team. You'll be part of the product team alongside Bastien (head of engineering), Bernardo (Backend Go developer), Mark (Ruby on Rails developer), Chris (Designer), François, and Antoine (co-founders).
We’ve set up a great work environment for our team, focusing on autonomy and growth. We take full advantage of the fact we’re entirely remote by focusing primarily on async communication and limiting the number of video meetings. Finally, you’ll get to participate in discussions shaping the future of the product.
About the role
At Hunter, we've been working from the start with one Go application (managing all our data) and one Ruby on Rails application (responding to users' requests). This setup has allowed us to be highly productive while our team stays small. We believe in always finding the most elegant way to build our product, and Go has been the ideal language to crawl, parse, and organize billions of public web pages.
As part of a small group within a young company, you will work on various projects over time, but you can expect that:
You'll work on our main Go codebase that gathers, processes, and provides all the data of hunter.io.
Within a few weeks, you'll become responsible for significant projects that will improve Hunter by building new critical features in our existing services. Over time, you'll help expand our product line.
You'll work with the rest of the product team to gradually increase the importance of NLP in our data pipelines.
You'll get a high level of autonomy in your work and help shape future development efforts.
You'll gather feedback from our Support team to find issues in our current system and improve it.
Hunter is a fully remote team, and this is a remote job. It is open to anyone located in Europe.
About you
You have multiple years of experience working with Backend Development. Ideally, you have experience in Go.
You enjoy dealing with complex problems and finding elegant solutions.
You're confident you can have a high level of autonomy and enjoy making decisions for yourself.
You're excited to take ownership of projects, set directions, and make calls. You're able to communicate clearly with your colleagues.
You have experience in remote working. You're comfortable working primarily with asynchronous communication and don't need a lot of handholding or supervision.
About us
Salespeople, marketers, and recruiters use Hunter to reach out to the people that matter for their business. We index B2B data from millions of public web pages and make it convenient to explore with simple but powerful tools.
Hunter is the most popular solution to find professional email addresses. It is used by almost 3 million people and leading companies such as Google, Adobe, Microsoft, or IBM.
Hunter was founded in 2015 and is a self-funded company. We're a team of 11 peopleworking remotely from Europe, America, and Asia. Twice a year, the team meets in a company retreat in Europe.
Sr. Video Engineer Frame New York City, United States / Remote (United States) $125,000 to $150,000 a year
January 2021
2 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
About Frame
Frame.io is changing the future of how videos are made by helping over 1 million creative professionals seamlessly collaborate from all over the world.
We’re backed by Accel, FirstMark, Insight Partners, SignalFire, Jared Leto, and a host of other amazing investors. Our market-leading product is used and loved by companies such as Turner, Disney, NASA, Snapchat, BBC, BuzzFeed, TED, Adobe, Udemy, and many more.
We’re in an exciting period of growth and are always seeking extremely talented and passionate individuals who share our vision for helping visual content creators produce their best work.
About the Role
Engineers at Frame.io are creative, technical people making beautiful and powerful tools to help other creative, technical people to do their best work. We have to be—Frame.io is the thread that runs through the entire video post-production process.
We're looking for a media focused systems engineer to join our growing engineering team. You'll work in an autonomous group that builds cloud-based services to power our entire media processing and delivery pipeline: the service at the very core of the Frame.io product. You will prototype innovative ideas and look to continuously optimize and enhance our media pipeline.
Some projects members of this team have built recently include:
An HLS and Dash streaming video service, built using Cloudfront, Lambda@Edge and API Gateway.
An on-the-fly watermarking system, encoding segments within Lambda functions.
A PDF page extraction service, generating up-to 4k images per page of a PDF.
We also have some very exciting initiatives around live capture from multiple sources into the Frame.io cloud. We rely heavily on AWS services to build these systems; in fact our whole video encoding process was recently the subject of an in-depth AWS showcase that you can check out HERE.
As a team we work with petabytes of data, hundreds of thousands of video encodes per day, and the challenges and demands that come from working at the very forefront of delivering Enterprise grade secure review experiences. This is a great opportunity to enhance your cloud computing knowledge; you'll be expected to design, build, and maintain cloud-based services that our client teams and customers consume.
Requirements
Experience working in Go (Golang), Python, Java, or C++.
A background working with video or image processing.
Past experience with Cloud Computing platforms: AWS, Microsoft Azure, Google App Engine or similar.
Past experience working with distributed systems, especially in a media business.
Great communication skills are a must.
Bonus points if you have
Worked across the full multimedia streaming and playback stack
Knowledge / understanding of audio video encoding such as H.264, AAC, HEVC, AV1 or streaming formats such as HLS, MPEG-DASH and also live streaming.
Experience with DRM and HLS-AES.
Knowledge of advanced and emerging video standards such as HDR10, Dolby Vision, 360 videos.
Experience in analyzing and improving performance of CDN infrastructure
Responsibilities
You'll work to plan, design, and execute new end-to-end multimedia-focused services and infrastructure for our customers and web, mobile and platform teams.
You'll work closely with other client and service teams to deliver your services. This means partnering to make sure you're designing clear APIs and well defined contracts. Ideally, you'd also learn to work throughout our tech stack.
You'll be responsible for running and maintaining the services you build – that means being on-call and accountable for meeting defined SLAs.
You'll be educating the wider engineering team on video engineering and the work you do.
You'll receive close guidance and mentorship from our engineering managers and leads, as well as code reviews from your peers.
Benefits
Competitive salary and equity
Paid parental leave for primary or secondary caregivers
Unlimited PTO and designated Volunteering paid time off
Work From Anywhere Week
Yearly stipend for learning and development
Medical, Dental, Vision Insurance and OneMedical membership
Pre-tax commuter benefit and Flexible Spending Account
Daily catered lunch & fully stocked kitchen with cold brew on tap
Discounted gym membership, Classpass discount and Free Citi-Bike membership
Our Philosophy
Our philosophy is simple. At Frame.io, we believe that working with people of different backgrounds and perspectives allows us to elevate each other and helps us build a better product for our users.
We’re proud to be an equal opportunity employer, and are committed to providing all employees with a work environment that celebrates individuality and remains free from any form of discrimination and harassment. We base our employment decisions on the needs of our business, job requirements, and applicants' qualifications. In other words, we only care that you’re the best person for the job.
Senior Back End Developer Kalido London, United Kingdom £70,000 to £80,000 a year
January 2020
1 Applicants This Week
More Than 6 Months Old
This job posting is no longer available
Job Description
About the role
Kalido exists to help create a world where people and organizations can maximize potential through a global community of valued connections and opportunities. We passionately problem solve new ways to do this, no matter how difficult the challenge. Everyone on our team is a true product owner, responsible for ensuring excellence. We move fast (but thoughtfully), and are looking for a talented and impact-oriented Backend Developer to join us.
In this role, you will be responsible for: shaping architectural decisions and technology choices; building the infrastructure at the very heart of Kalido; and ensuring that it is secure, performant, easily deployable, scalable, cost-effective, and fit for purpose. In doing so, you will shape the company, and our collective ability to impact the world.
As part of a startup, your responsibilities will vary, but on a day to day basis, you will:
Build Kalido’s back end
Collaborate with management, design, and platform-specific development teams to define, design, and build new functionality as required
Design, build and refactor our architecture as we evolve, with maintainability and efficient abstraction in mind
Verify, test and deploy new builds
Inspire and lead other developers, ensuring their growth
Mentor other developers to help them grow, and to ensure our design and development efforts and ethos remain aligned
Maintain Kalido’s back end
Troubleshoot, debug and enhance the existing codebase and DevOps deployments, driving towards a continuously more performant, higher quality, and responsive experience
Monitor and analyse system performance, and own our uptime
Refine and extend our administrative and performance monitoring tools
Optimize our use of processing power, memory, storage, bandwidth, and third-party API calls in our backend infrastructure
Plan for the future
Propose, evaluate, select, and adopt new technologies when needed
Ensure that you are on top of changes to critical parts of our infrastructure (e.g. AWS, GRPC, Postgres, Redis, Envoy, RabbitMQ, etc.) so that we can adopt newer versions without affecting performance or functionality
Shape our API and third party integration strategy
Proactively suggest changes to balance cost, scale, security, performance, deployability and utility
Load test regularly, and plan for the next 1-2 orders of scale
What we are looking for
We value inclusion, impact, transparency, generosity, and teamwork. You can read more about our values and what they mean to us here: https://www.kalido.me/our-mission/. We are looking for someone who: shares our philosophy; is capable and excited about the role; strives for personal and professional excellence; and wants to make a meaningful difference through their work.
This opportunity is for you if you are:
Experienced (have 5+ years experience of designing and building commercial back end systems), with a strong analytical mind, and an ethical approach
Comfortable with the fundamentals of computer science and information architecture, including knowledge of data structures, algorithms, their complexity, their tradeoffs, and their implementation (e.g. trees, graphs, sorting algorithms, and their various Big O implications)
Someone who has led or been part of small teams of developers through the entire software development lifecycle, in maintaining and continually improving a lean software development process, and in delivering high quality code reviews, with a toolbelt of best practices for professional software development
Excited about thoughtfully building scalable platforms
Experienced with cloud infrastructure providers (Google and AWS)
Experienced with developing on and for the Linux operating system
Knowledgeable about systems architecture choices and performance trade-offs, database design and extensibility
Capable of writing complex and performant SQL queries for Oracle and Postgresql
Comfortable developing and maintaining systems written in Golang, Javascript and Python, using unit testing, and managing version-controlled development using continuous integration and devops tools (e.g. Travis). Working knowledge of a wide variety of languages and frameworks is preferred.
What we offer
Working at Kalido means working with a solid startup that has been around since 2015. We balance our drive for delivery with flexible working arrangements, generous maternity and paternity leave, weekly team lunches, and the chance to truly shape the culture you work in. You will never run out of fascinating problems to solve and will have incredible opportunities to work with a diverse team that cares about your growth.
About Kalido
By helping everyone to easily create stronger communities and more meaningful real-world connections, Kalido’s goal is to level the playing field of opportunity. We are redefining the way people connect in their neighbourhoods, inside companies, at events, in schools, in alumni groups, in co-working spaces, and doing so throughout their lives. In August 2019 we closed a 5m USD Series A, and are backed by HCL, a global IT player with a 22 bn USD market cap, and co-founded by the #3 core team member and early investor at Alibaba. If you’re excited about empowering individuals, helping organisations to work better together, and creating a platform to power the future of work, this is the place to do it. To learn more, visit https://www.kalido.me.
How to apply
If being a Lead Software Developer at Kalido sounds like something that leverages your skills and ignites your passion, we want to get to know you. Drop us an email with your CV (including a link to your portfolio and relevant repositories) and a cover letter, addressed to Martyna at careers@kalido.me.
In order to be a great workplace and build a great product, we believe we must strive to truly represent and support this diverse world. We welcome applications from all suitably qualified people regardless of age, race, gender identity, sexual orientation, parental status, marital status, disability, religion, or belief.
Senior Software Engineer Luno London, United Kingdom £80,000 to £100,000 a year
October 2018
3 Applicants This Week
More Than 6 Months Old
Job Description
Luno is a leading global cryptocurrency company operating across more than 40 countries and with offices in London, Singapore and Cape Town. We’re a profitable, growing company with over 2 million customers, and are backed by some of the top tech investors in the world.
Our products and services make it safe and easy for people and businesses to buy, store and learn about cryptocurrencies like Bitcoin and Ethereum. Our vision is to upgrade the world to a better financial system.
To the moon! 🚀
Your Mission
We have multiple openings for senior software engineers in our brand new London office. These are in a range of teams including fraud, platform, payments, shield, onboarding, and crypto-security. With over 40 engineers based in our Cape Town office, you’ll be joining a group of highly motivated experienced developers who you’ll work collaboratively with across our currency exchange, fraud, payments and compliance pods.
As a small company operating on a global scale, you’ll immediately see how your contributions directly impact both our internal users and client experience. We make decisions based on facts, not fiction. Many of the problems we’re solving result in genuinely trail blazing solutions which can’t be found on StackOverflow; so we’re looking for an experienced engineer that thrives on working in a complex domain.
We use Go, microservices architecture (gRPC) and AWS, but if you come from a Java, Python or other relevant language we’ll help you get up to speed with our comprehensive engineering onboarding program.
How we work
We succeed as a team. Our teams are split into pods, each of which focuses on a specific aspect of our product. Any engineer is able to deploy to production, and we deploy multiple times each day. Your pod will include a product owner, back end engineers, Android and iOS developers, and web developers who each bring a unique perspective to the problem you’re all solving.
A typical day
Join the pod’s daily standup to share progress and remove blockers
Collaborate with other engineers on the design of a new payment integration to launch to a new market
Write clean, well-tested code that directly affects users, the company and the Bitcoin ecosystem
Grab lunch with the company (we provide lunch Monday - Thursday)
Coach a team member by giving feedback on their pull-request
What’s in it for you
This is a fantastic opportunity to learn more about cryptocurrencies, blockchain, emerging and developed markets, and scaling a global business. We provide great benefits and the autonomy to conceive and execute your own projects. Best of all you get to work with a diverse team of talented, ambitious and friendly people on something that will truly revolutionise the world.
As a “Newnaut” we’ll fly you to Cape Town to meet the wider team, and go through our comprehensive onboarding program. We expect you to have a passion for blockchain and cryptocurrencies but we understand that this is a new industry so we’ll help you learn about how the blockchain works and understand all aspects of our business.
What you’ll need
Building a new financial system for the world requires a special breed of people working together with unusual skill, focus and determination. “Moontality” represents the ten core principles that underpin everything we do, setting us apart from the rest.
As an experienced lead-level or senior engineer, you’ll have:
A solid foundation in computer science in areas such as algorithms, data structures, and software design
Extensive programming experience in an object-oriented language. We use Go but we welcome applicants who have strong experience in other languages like Java, Scala or C++, etc.
Proven experience of building, shipping and supporting a product
An interest in cryptocurrencies like Bitcoin
Don’t be put off if you don’t tick all of the boxes – they’re a guide based on what we’d love to see but we appreciate that great software engineers have diverse backgrounds.