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$125k - $155k
Backend Systems Engineer
At CommentSold we are building multiple complex systems to support our core e-commerce and mobile technology stacks, we have systems doing video transcoding, push and SMS messaging, mobile build pipelines and a few other interesting problems.
We’re looking for an experienced backend systems engineer with a strong general software engineering skillset to help build and grow our new systems development. In this role you’ll be driving forward our new backend systems, helping designing and maintaining our existing systems.
Right now the majority of our backend systems which live outside our main web stack are written in Go and/or built on AWS technologies like ECS and beanstalkd. If you have experience with and interest in helping solve some interesting problems where scaling is a real factor this might be the right role for you.
NOTE: At this time, we are only considering candidates located in the USA.
In this role, you will
If you’re right for this role, you
We are a remote focused team so the majority of your time will be remote. We also provide remote specific benefits: * Coworking space reimbursement budget * Home internet reimbursement budget
Base salary plus annual bonus
£60k - £90k
Seldon is looking for a GoLang Software Engineer to join our team. We are focused on making it easy for machine learning models to be deployed and managed at scale in production. We provide Cloud Native products that run on top of Kubernetes and are open-core with several successful open source projects including Seldon Core, Alibi:Explain and Alibi:Detect. We also contribute to open source projects under the Kubeflow umbrella including KFServing.
About the role
Design and build scalable machine learning solutions on top of the open source and enterprise Seldon products. Working on bring the Explainable AI and ML Monitoring available in the Alibi projects into the enterprise products for general use.
Core skills (The role will be focused on these skills so we would expect existing experience or a demonstrable desire to learn these)
Desired skills (Any of these will be of great interest to us) - A broad understanding of data science and machine learning. - Understanding of explainable AI or machine learning monitoring in production - Familiarity with Kubeflow, MLFlow or Sagemaker - Familiarity with python tools for data science
About our tech stack
Some of our high profile technical projects: - We are core authors and maintainers of Seldon Core, the most popular Open Source model serving solution in the Cloud Native (Kubernetes) ecosystem - We built and maintain the black box model explainability tool Alibi - We are co-founders of the KFServing project, and collaborate with Microsoft, Google, IBM, etc on extending the project - We are core contributors of the Kubeflow project and meet on several workstreams with Google, Microsoft, RedHat, etc on a weekly basis - We are part of the SIG-MLOps Kubernetes open source working group, where we contribute through examples and prototypes around ML serving - We run the largest Tensorflow meetup in London And much more 🚀
Some of the technologies we use in our day-to-day:
Our interview process is normally a phone interview, a coding task, and 2-3 hours of final interview (carried out virtually). 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. Our recruitment process has an average length of 3 weeks.
€65k - €85k
At Upvest, we are building the financial infrastructure of tomorrow. Our vision is to create a world in which any asset can be owned and traded digitally by anyone, anywhere. Our bold long-term view is backed by Europe’s largest tech VCs Notion Capital, Partech and Holtzbrinck Ventures. Today, we count 22 talented people from 10 different countries and we want to keep expanding our Upvengers team.
We are seeking a full-time talented engineer to build strong microservices architectures in Golang. Your goal is to provide the best developer experience of our blockchain API users for digital asset management and issuance.
**This role will give you the opportunity to:
We care deeply about providing the best candidate experience, and we provide a quick and efficient recruiting process. As a result, we have an average of 6 days from Apply Date to Offer Stage.Apply ⎘ Copy Link ↗ Visit Link
€60k - €95k
Our awesome Software Engineering team is 100% remote and consists of talented Senior Software Engineers that collaborate across 15 European countries. Our software engineers work in small, highly agile, self-managed teams. They share a common interest in engineering best practices and understand that quality is everyone’s responsibility. Their philosophy is to favour open-source collaborative development – leveraging open-source tools and communities, whilst always making sure to share their know-how back up stream. Put simply, they are cloud-native enthusiasts and DevOps advocates.
At Form3 you will have the opportunity to design, develop and deploy backend cloud-native services within a powerful state-of-the-art microservices architecture. The work is cutting edge, constantly changing and focused on building highly available, low latency, scalable solutions.
Play an active role in introducing new technologies and ways of working to stay ahead of the competition, without ever compromising on quality. Contribute and collaborate with other engineers on technical and architectural decisions. Enjoy end-to-end ownership from concept to deployment, including building and operating infrastructure, toolset and deployment pipelines. Develop your skills, work on cool projects with the latest tech, all whilst working with a talented, diverse and friendly group of people.
Go, AWS, Kubernetes, Microservices, Docker, Terraform, Github, Postgres, Redis, CQRS, Prometheus, Vault, Consul, PACT, Linkerd, Elasticsearch, TDD, BDD, Pair Programming.
WE’RE LOOKING FOR ENGINEERS WITH
Passion for cloud-native technologies, modern infrastructures and tools, and keeping up with the latest in engineering best practices
Experience in designing and building distributed, scalable systems
Exposure to public cloud platforms (AWS, GCP etc)
An appreciation of the DevOps culture and the value of automation
Emphasis on code quality and software development best-practice
Polyglots who are comfortable picking up new technologies with a “right tool for the job” mentality
Above all, we’re looking for enthusiastic engineers who love working in a DevOps culture and value teamwork, different perspectives and blending disciplines.
30 days annual leave plus bank holidays
Remote first environment
Flexible working arrangements
Training tools such as Udemy and educational reimbursements
Full details are available on our careers page
We are an award-winning cloud-native payment technology provider for financially regulated institutions. Launched in 2016, we’ve doubled in size year on year as we continue to redefine what a truly instant payment experience means.
We celebrate diversity, promote entrepreneurialism and are committed to giving everyone a say in shaping our business. Here you will grow as a person and accomplish incredible things. A career at Form3 is empowering, inspiring and fun. Join us and help shape the future of payments.
At Form3 we embrace equal opportunity and are committed to building a diverse team of exceptional individuals. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status and it is our strong belief that the more inclusive we are as a business, the better our work will be.
$130k - $200k
At GRAX, it’s all about data. We help our customers secure and drive value across their ever expanding enterprise SaaS data footprint. Initially, we’re focused on Salesforce, the wildly popular CRM platform used by the world’s most successful companies. We capture and retain every data change over time, so it can be stored, processed and analyzed using the full power of AWS, Azure and GCP.
GRAX is a well-funded Series A startup. We’re one of the fastest growing partners in the Salesforce ecosystem with revenues more than doubling year-over-year.
GRAX was founded by serial entrepreneurs with a long history of success in the Salesforce ecosystem. The product and engineering organization is led by veterans in cloud platform development, including some of the key architects behind Heroku.
The Backend team builds and maintains the core distributed data pipeline that slurps data from SaaS APIs, secures it for safekeeping before transforming and routing it to its final destination. As an engineer on this team you can expect to:
Founded in Boston, GRAX is a remote-first, distributed team. We value collaboration, communication and accountability. You’ll be offered a competitive salary, equity, full health benefits incl. dependents and unlimited PTO.
GRAX embraces diversity and equal opportunity. We are committed to building a team that represents a variety of backgrounds, perspectives, and skills. We believe the more inclusive we are, the better our company will be.
Full health benefits, including dependents. Unlimited PTO. Equity. Competitive salary.⎘ Copy Link ↗ Visit Link
€65k - €80k
As a startup dedicated to public transport, our vision is to make buying tickets for passengers as easy as possible. Therefore, we are developing a ticketing system that automatically detects beginning and end of a ride. Based on the detection, it is possible to provide passengers with the cheapest tickets. The problem we are trying to solve is challenging: developing a reliable ride detection algorithm based on data from smartphone sensors while creating a solution that attracts both passengers and public transport providers. We value active collaboration and independent work. We believe that together we can build a great solution that will have a major impact on public transport.
To make our hiring process easy going we decided to keep it fast. Our hiring process from application screening up to contract offer takes at max 2 weeks.
$60k - $90k
Nice to have
Who is X-Team meant for?
Any freelance developers with experience working on high-scale, remote teams and projects with a motivated, proactive attitude and compassionate, team-player heart. If you’ve worked with freelancing platforms before, that’s not what we are. X-Team is a community of all like minded people, carefully chosen to ensure we are able to create an environment of the most motivated people in the world who come together to unleash their potential. What we’ve created is truly special and not a faceless platform. X-Team is where developers go to feel truly at home together, while becoming more motivated and energized than they’ve ever been.
£80k - £100k
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! 🚀
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.
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.
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.
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:
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.
$75 - $100k
Verisart is currently upgrading is is seeking a hands on Senior Golang Engineer who can work with our technical stack as we migrate from a tightly coupled backend and front end to using React/Redux.
The successful candidate will have strong web app and RESTfull API experience and will be able to support our in-house development team and can start immediately. Knowledge of micro services is also helpful.
The role would involve setting up the API framework as well as any authentication (OAuth2.0) and validation middleware. Routes would then need to be implemented and integrated. Role would also involve supporting any extra code requirements of the development team inside the scope of the API project.
The work will be carried out as part of a small team, based in London (Mayfair). Competitive rates offered, as well as flexible working hours although the position is full time and on site and the successful candidate must be available at least 4 days per week at our office in London.
In general Verisart seeks engineers interested in applying cryptography at real world problems. Our problem lies within the art market as we address the problem of proving provenance for artworks and building evidence based certificates of authenticity. We recognize that cryptography is not a magic bullet. We want to use it intelligently to provide evidence where possible for people to interpret, like the web of trust. We’re looking for people who understand how to apply cryptography to problems. While understanding the mathematical backgrounds to cryptography is great, it’s not essential if you understand how the cryptographic primitives like hashing and message signing work together to solve real problems. We value passion and hard work when tackling challenges and above all else although an interest in arts and collectibles is helpful.
Skills & requirements Requirements
Computer science degree or similar (preferred but not necessary). Git. High level experience such as C++, Golang, Rust, Java, Python. Bitcoin experience is an asset.
About the company Verisart is building the most trusted way to certify and verify artworks and collectibles using distributed ledger technology. We are a rapidly growing team of applied cryptographers, software engineers and designers with offices in Los Angeles and London. Robert Norton, former CEO of Sedition Art and Saatchi Art, leads the company. Peter Todd, core developer for the Bitcoin blockchain protocol and Dr. Ahmed Elgammal, Professor in Computer Science at The Art & AI Lab at Rutgers University are Board Advisors.
cool team, great product, bright future!
code test and interview⎘ Copy Link ↗ Visit Link
₹6L – ₹9L
We are looking for a software developer who has exposure to the blockchain development (Bitcoin/Ethereum) in DApp based Web App Development. He/She will have the opportunity to solve technical problems and provide innovative solutions to build and support client systems, applications on distributed infrastructure platforms like Blockchain.
Essential Functions of Job: Design and develop applications in the different blockchain platforms such as Hyperledger, Ethereum, Bitcoin and other distributed computing environments.
Responsibilities: -Learn how to design and develop in the emerging space of distributing computing applications. -Keep up to date on emerging capabilities in this fast-growing area and identify where and how new capabilities can be applied. -Translate requirements from architects and product managers into functional code. -think through and anticipate how hackers and others may attempt to subvert or mis-use applications. -Contribute to EYs internal knowledge base on best practices in this emerging technology area.
$40k - $85k
We are actively seeking the best engineering talent regardless of programming language, so background in these technologies is not necessarily required, but some of the technologies our team currently uses include:
• 4+ years relevant experience as a Software Engineer with a strong team
• Technolodies to know Go, Redis, Postgres, Docker, Kubernetes
• Experience with Agile Product Development processes and individual contribution
• Tests (unit, functional, integration) and understanding how to apply them
• Understanding and practically using SOLID, GRASP, common design patterns
• Ability to follow Micro Service Oriented Architecture (pros/cons)
• Relevant Bachelor’s or Master’s degree in Computer Science or related technical discipline from a top global University
• Go, Python (Django/Vanilla)
• Team/component/project lead experience
• A well-maintained Github profile with samples of your prior work. Relevant open-source commits or other public work vetted by developers online is a big plus
• Experience in building easy-to-use consumer products
• Experience building FinTech products or other financial systems
• Passion for Bitcoin and Blockchain technologies and a detailed understanding of how they work
• Experience working with a remote team
€30k - €40k
3-5 years of experience as a backend developer
Experience with Blockchain daemons such as Bitcoind, Litecoind or Parity
Strong proficiency with Node.js and various frameworks
Understanding the nature of asynchronous programming and its quirks and workarounds
Understanding accessibility and security compliance
User authentication and authorization between multiple systems, servers, and environments
Integration of multiple data sources and databases into one system
Understanding fundamental design principles behind a scalable application
Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform
Creating database schemas that represent and support business processes
Implementing automated testing platforms and unit tests
Proficient understanding of code versioning tools, such as Git
Experience with other languages such as: C++, Java, or GoLang
Desire to make the best trading platform out there
Strong passion for Bitcoin and other cryptocurrencies
$70k - $110k
Chorus One is close to releasing a validating node for the Cosmos network. We are actively searching for a Blockchain Engineer to build validating nodes for other decentralized networks. The work consists of reviewing codebases of other decentralized networks, designing a path forward to deploy validating nodes using our internal infrastructure and to ensure operational security in deployed infrastructure. This position is a unique opportunity to work with a very experienced team on cutting-edge decentralized networks and financial services around cryptocurrency.
The ideal candidate:
$50k – $80k
We are looking for awesome backend developers to join our Berlin team at Herdius. We are a blockchain startup working on a decentralized financial platform tailored specifically for cryptocurrencies. Our goal is to create a new, highly scalable blockchain that can act as a transaction and identity layer on top of all blockchains. The vision for Herdius is to create the central cryptocurrency financial hub of the space. Since we are developing our own chain as well as are working on brand new technology there will be a lot of room for you to play around with new consensus mechanisms, blockchains, distributed systems design, governance mechanism design, order routing, etc.
Implementation and design of Herdius’ consensus algorithm and p2p routing protocol Writing reusable, testable, and efficient code Design and implementation of low-latency, high-availability, and performant applications Integration of data storage solutions as well as distributed data storage solutions Creation of an efficient crypto exchange orderbook capable of handling thousands of transactions per second Creation of Governance / voting systems Working on our distributed virtual wallet network that implements distributed key generation with homomorphic encryption
What to send:
Links to your GitHub/Stack Overflow/Portfolio/something awesome you’ve built that you’re proud of A resume or LinkedIn profile Cover letter
$70K – $120K
Hypergrowth is seeking an experienced Blockchain Developer who has solid expertise in system and software architecture, delivering scalable Enterprise software. The perfect individual will be confident and experienced with relevant full life-cycle architecture and software development capabilities.
$35K – $45K
As a Junior Blockchain Engineer, you will be part of a team of Engineers delivering the core Karatcoin technology product. This includes the core Blockchain node and a suite of innovative smart contracts. The Blockchain space is young and evolving so the role would suit a self-starter who is ready to dive into space with support from Senior Engineers.
We work in a decentralized model, allowing you to work from anywhere. The physical HQ is in the United Kingdom, with offices in London (UK) and Biella (IT).
Karatcoin has an ambitious program to create a suite of Blockchain tools and products that will enhance the environment and form the basis for future products and businesses. By joining Karatcoin you will have the chance to help create these tools and products in an environment where research and investigation are valued.
We need to complete a tech team to start work on the next quarter.
The aspiring workers will initially sign a Letter of Intent, then a final Agreement at the beginning of the works.
• Bug fixing on existing codebases
• Performance testing on existing codebases
• Producing documentation
• Completing Agile tickets
• Enhancing existing tooling
• Contributing to design discussions
• Understanding of Computer Science fundamentals (data structures, algorithmic complexity, etc)
• Experience in strongly-typed languages (C/C++, Golang)
• Interested in Bitcoin, Ethereum, EOS, the cryptocurrency space
• Self-learner but not afraid to ask for help when they need to.
• Comfortable working in a self-organizing team.
• Comfortable communicating in verbal and written format.
• Understanding of cryptography
• Attends Blockchain related meetups
• Writes Open Source code for personal projects.
We believe in diversity of background and thought, and work hard to cultivate a place where everyone is valued and empowered.
If you are up for a great challenge and get excited about developing the next frontier of technologies apply now!