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Expa is a startup studio led by the founders of Uber, StumbleUpon, Foursquare, AddThis, and Metrolyrics. After 10 years designing and building consumer services, the Expa team has identified many techniques that help create successful companies. With $150 million funding to date, the team founds new companies based on internal ideas, and occasionally collaborates with founders of early-stage companies whose missions Expa believes in. We help companies avoid common pitfalls in early-stage ventures, and actively remove roadblocks along the way, specializing in product strategy, system design, and user experience.
Expa has a strong presence in San Francisco and New York City, and has recently expanded operations to Vancouver, Canada. We are actively looking to hire the best talent to be a part of our growing team.
You can read more about Expa on our site. The project you would be involved in is under stealth and more information will be provided at the time of interview.
JOB DESCRIPTION
We are looking for experienced software engineers, with strong backend experience in Cloud based environments excited for the challenge of working with a small team of front-end engineers. The position requires excellent problem solving and engineering skills when working with systems at scale. We are seeking individuals that are motivated to build cutting edge backends for products and manage the underlying infrastructure and deployment processes. The perfect candidate will be comfortable working closely with front-end engineers and can communicate effectively within a small team.
RESPONSIBILITIES - Build scalable, secure, effective and well documented backend systems in alongside well motivated front-end engineers - Collaborate with front-end engineers to ensure on-time and performant solutions - Assess and build test frameworks for backend systems, as well as track metrics and performance over time - Ensure that code written is to a high standard, with excellent reusability - Help develop a service orientated architecture for cutting edge products
SKILLS & REQUIREMENTS - Strong development skills with Go ( golang ), NodeJs or Python for backend development - Ability to write clean, maintainable and well documented code - Strong understanding of front-end development and integration of services and APIs for front-end developers - Experience with Elastic Container Service and Docker is a must - Ability to maintain and manage databases and infrastructure within AWS - Understanding of Highly Available infrastructure environments and systems - Experience with infrastructure management and deployment through Automation tools and systems - Comfortable with OS Internals / Infrastructure on Debian, Redhat and Ubuntu systems - Experience with load balancing and web server technologies (Nginx, HAProxy) - Ability to build scalable infrastructure on Amazon Web Services (EC2, RDS, S3, ES, ECS, ELB etc) - Strong understanding of network communications within Cloud environments - Computer science degree or equivalent experience - Security hardening / experience with SANS or OWASP frameworks
YOUR BENEFITS - A competitive base salary - Stock options - Full medical and dental benefits - A very flexible vacation policy - Custom workstation designed to your needs - A beautiful office in downtown Vancouver and a talented team
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MISSION : Your mission will be to ensure that Agricool's cooltainers operate as designed to deliver best of class taste and yield. Your responsibilities will include :
REQUIREMENTS : - Problem-solving mindset, appetite for diagnosing various classes of complex problems - Very good knowledge of the linux kernel, including the network stack - Good knowledge of at least one scripting language (shell, ruby, python, etc.) - Experience with at least one IT automation platform (Chef, puppet, ansible, etc.) - Software polyglot: ability to read and understand advanced Java, C++, golang, TypeScript, etc.) - Ability to jump between various technologie, open-minded and believing in the "right tool for the job” - Hardware and micro-electronics culture
We are looking for a Senior Software Engineer who can turn ideas into reliable, beautifully written code that other people will find easy to comprehend and modify. You have a fundamental understanding of distributed systems and how Linux works behind the scenes. All additional experience in low-level systems is considered to your benefit. Experience and understanding of blockchain are not mandatory.
Do you self-identify as a great problem solver?
Have you been honing your innovation craft for years yet yearning for more complex challenges?
Does the opportunity to play a key role in the launch of a software platform with massive impact (for millions or even billions of people) excite you?
If you’ve answered with 3 resounding yeses, then we want to meet you!
What We Expect We are a cutting-edge web3 infrastructure scale-up project seeking a few very talented developers who are not just looking for a job but want to be challenged to accomplish great things in an exciting venture.
We are the veterans of many successful startups and will put you on the accelerated learning curve toward your future success.
We are looking for an experienced Lead Golang Engineer who has designed, built, and operated high-throughput, highly resilient distributed data systems. This is a rare opportunity to work with a number of talented innovators on building a protocol that can change the data cloud landscape, e.g. decentralizing big data.
This core systems development position will challenge you to drive the design and development of significant system software components with a highly collaborative, test-driven, and rapid prototyping approach. In addition, you will definitely need to build upon your previous innovation and operational experience with highly scalable distributed systems that provide availability, reliability, and performance guarantees.
About Cere Network Cere Network is the decentralized data protocol powering the future of web3 with trustless content sharing and cloud data interactions between apps, users, AI/ML, and (NFT) assets. Cere is backed by the world’s largest institutions and projects, including Binance Labs, Republic Labs, and Polygon.
Our Ethos We look for a few things across all hires we make at Cere, regardless of role or team: - We seek teammates who will thrive in our fast-paced work environment, where we default to methodical, simulation-driven, fast development iterations and a first-principle thinking mindset. - We crave teammates with high standards and strong discipline, embracing a growth mindset to continuously learn and incrementally improve habits and processes. - We require contributors to have excellent communication skills (esp. written), for everything must be well organized and tracked in Notion, Slack, Wiki’s, etc. We want autonomous, goal-oriented individuals who embrace transparency and accountability. No one wants to micro-manage others. - We need good teammates who are generally cool people who want to be part of a great team & decentralized community where everyone truly helps and challenges each other to learn/grow by innovating together towards greater shared goals. Embracing the building of such a collaborative community is the only way we can sustain rapid innovation (and the only way to live/work, really).
Requirements: - 5+ years of extensive programming experience with Golang. - Deep understanding of system design, data structures, and algorithms. - Experience with concurrency, transactions and parallel execution. - Experience with cryptography (encryption and signatures). - Systematic problem-solving approach coupled with effective communication skills.
Nice to have: - Experience with distributed databases and/or storage systems. - Database engine internals (storage): indexing, access methods, concurrency control, logging, caching, transaction processing, replication, backup restore, and buffer management. - Database engine internals (query processing): query compilation, optimization, execution, parallel execution. - Distributed systems: consensus-based quorum replication, peering networks system implementation.
Tech stack: - Golang - libp2p - BadgerDB - Substrate-based blockchain API - Crypto libraries for asymmetric encryption and signatures
A bit more about our Multinational, High-Performance (and primarily remote) Team Join a highly talented multicultural team that is based all over the world. We have offices in San Francisco, New York, Warsaw, Amsterdam, Berlin, and several locations in Asia. As stated above, we make remote working possible by embracing our ethos, yet many teams also travel to meet in person every 1-2 months. We all want high degrees of autonomy and flexibility to make life and work fun, but transparency, accountability/ownership are the requisites.
Clearmatics is a protocol engineering company. We are building a new financial market architecture that is more open, fair, and resilient than the legacy systems that are in use today. We develop protocols and software that create new markets for risk and more efficient infrastructure for trading, backed by a robust and scalable blockchain network, and secured with modern cryptographic techniques and economic mechanism design.
Clearmatics is based in London but operates on a 'remote first' model. We welcome candidates from all over the world. We have close ties to the Open Source and Ethereum communities, with Vitalik Buterin as an adviser.
The Engineering team at Clearmatics is responsible for developing our blockchain software at Layer 1 and Layer 2. At the core of our stack is the Autonity client, the node software that powers our blockchain network. It is based on Ethereum (go-ethereum) and is secured by Tendermint Proof-of-Stake consensus. Our decentralised platforms are built on smart contracts and decentralised applications, and are supported by backend services in Go.
We're looking to hire a Core Developer to expand our Layer 1 Engineering team.
ABOUT YOU
You're a systems programmer with good knowledge of Layer 1 protocols, and a passion for blockchain and decentralisation. You enjoy working to a high standard and writing code that is clean, performant, and maintainable. You appreciate the importance of careful design choices and can anticipate the impact of code changes on wider system behaviour. You can demonstrate a strong interest in blockchain and may even have open source contributions that you can highlight. You express yourself clearly in writing and in discussions.
RESPONSIBILITIES
You will be involved at all stages of the development lifecycle for the Autonity protocol and its blockchain node client (a fork of go-ethereum). These include: - Implementing new protocol features in Go and Solidity - Developing new distributed systems tests and frameworks - Contributing to protocol and design specifications - Working with members of the community to resolve issues - Your work will ensure that Autonity client is correct, reliable, performant, and secure. This will enable Autonity to serve as the foundational layer for a new ecosystem of decentralised markets.
REQUIREMENTS
BONUS POINTS
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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:
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
Required Skills
Bonus Skills
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.
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
At Vaayu, we are on a mission to reverse climate change. We know e-commerce has a big climate impact so we are focusing our efforts on helping retailers measure and reduce their carbon emissions. Calculating carbon manually can take months and is very expensive. Our goal is to democratize carbon mapping by making analytics easily accessible to every online retailer.
Our automated software is already serving sustainability leaders like Armed Angels and Organic Basics, linking up with shop platforms to deliver the tools necessary for retailers to take charge of their environmental footprint.
We are a remote first company based in Berlin, with an international and diverse team throughout Europe. We truly believe in a sustainable future for retail, and are looking for likeminded individuals to join us from across Europe or equivalent time zones.
If you are an innovator, want to work at a purpose-driven startup, and would like to collaborate with us in shaping the culture of a growing team on a mission to make a positive impact on our planet, we’d love to hear from you.
We are looking for an experienced Backend Engineer to build up and own new systems. You will be joining as one of the first Backend Engineers at Vaayu and help shape everything that comes next. This role is perfect for someone with an intuition for data and wants to own and lead their own work. We value entrepreneurial minded people, who always put the customer first.
We aren't looking for experience with a specific technology, if you are still curious what we're currently using Here's a bit of an overview:
If you're interested in being part of our team, contact luca@vaayu.tech with a short paragraph about yourself along with your resume/CV.
Vaayu is an equal opportunity employer, and we are committed to being a diverse team that reflects a broad range of background, thought, and experience.
WalletConnect is the open-source web3 standard to connect blockchain wallets to dapps. Started four years ago, our mission is to make web3 accessible to everyone. Every month, millions of people use WalletConnect in over 200 integrations.
We’re looking for a backend golang engineer to join our team to build and scale our network. To help grow web3, we recently launched WalletConnect 2.0 with new features, including multi-chain support, a decentralized back-end, faster connections, and 10x performance and scalability. You will help us expand and scale our backend messaging infrastructure.
To learn more about our plans for 2.0, take a look at our recent presentation at EthCC. https://www.youtube.com/watch?v=8cBIw7lFNnU
You will be responsible for building Golang messaging services. A main challenge is growing our services to scale for our millions of users across billions of websocket connections every month, as well as ensuring security and resiliency.
To help with your role, you will have the support of our devops team to deploy and manage our infrastructure, will work closely with our protocol and SDK teams, and have exposure to the full WalletConnect stack.
The ideal candidate is immersed in the best practices of golang at scale, messaging systems and Websockets.
Responsibilities:
Must have:
Nice to have:
What WalletConnect offers:
We are looking for a track record of:
Preferred experience with, but not required:
Delivering secure and well-tested solutions that scale:
Strive to take ownership of a project from ideation to delivery and maintenance. Your experience provides a framework for you to work independently on several initiatives which will provide significant and measurable value to our customers. Seek opportunities to develop horizontal technologies that benefit multiple teams. Build and automation tools to increase the quality of all teams at Ferrum.
Communicate and document everything. At Ferrum, we are a distributed team. A culture of sharing and documentation allows everyone to work together. We are looking for a practitioner of clear documentation that is well-maintained. You adapt your communication style to suit different audiences and follow up on feedback to ensure positive outcomes.
Are a team player. Ferrum is a high-growth, venture-backed, fast-paced startup. This means that while the team members we’re hiring will fully own their functions, we expect them to understand adjacent roles and responsibilities in order to support and sometimes contribute.
Are an out-of-the-box thinker. In a fast-paced startup environment, much of our success hinges on our ability to think differently from competitors, counter-position, outmaneuver, iterate rapidly, and present compelling messaging that differentiates us from the pack.
Think healthcare can be better and want to have an impact in the industry. Ferrum’s team is first and foremost, mission-driven. Our mission is to help hospital systems use AI to improve patient care, and the work that we do impacts patient lives every day.
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We are looking to hire remote principal engineers as individual contributors to design, develop, test, deploy, maintain, and improve Humanitec. You should have significant professional experience in building highly scalable distributed systems. CS degree and experience in dev productivity tools are a plus. Languages: predominantly Go. Everything is on Kubernetes. We pay top 5% in the market, stocks are part of the package. Work is fully remote and we work exclusively with senior engineers in small, lean, and self-organized teams. We currently prefer time-zones UTC-1 to UTC+3.
The product:
We are pioneering a new category of tooling called “Internal Developer Platforms”. Built for some time in companies such as Spotify, Github, Airbnb, and others, we are providing the fastest way for teams to build their own Internal Developer Platforms. Internal Developer Platforms provide a developer experience as simple as Heroku but on top of the tech and tools the team uses already. They allow ops teams to stay in control while enabling developers to self-serve the tech they need. Do you want to spin up an environment to do some quick testing? No problem! Need to clone Production to troubleshoot an issue without risking more problems? Easy! Need to stand up a new database for your service but ops is busy? Piece of cake! We serve customers from startups to unicorns.
The team:
The majority of our company are engineers. Our management team is made up of Ex-Google, Ex-Mckinsey, and serial entrepreneurs. We are backed and advised by experts such as Sohaib Abbasi (Oracle, Redhat, New Relic), Mirko Novakovic (Instana, IBM), Jason Warner (Github, Microsoft), and Chris Schagen (Contentful). We are well on track for our Series A at the beginning of 2022.
We're looking for people who could land a job at the likes of Google, Amazon, or Microsoft - but prefer the excitement, challenge, and daring of being part of a disruptive startup. We focus on your talents and personality - your background, origin, or gender will never make a difference to us.
Requirements:
Responsibilities of the role: