\nClearmatics 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.\n\nClearmatics 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.\n\nThe 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.\n\nWe're looking to hire a Senior Software Engineer to expand our Layer 1 Engineering team.\n\nABOUT YOU\n\nAs an experienced backend software engineer with a good knowledge of blockchain protocols, you know what it takes to ship a secure, reliable, and performant blockchain node client. You write clean and maintainable code, and you take the time to promote good software engineering practices. You understand the importance of careful protocol design choices and can anticipate the impact of changes to the code base. You are able to communicate your thoughts clearly in writing and in discussions.\n\nRESPONSIBILITIES\n\n\n* Develop and maintain the blockchain node client (go-ethereum fork) and related protocol smart contracts (Solidity)\n\n* Implement new protocol-level features based on academic papers, technical specifications, and proof of concepts\n\n* Refactor the code base for better maintainability and to meet performance and reliability requirements\n\n* Develop distributed system tests and frameworks to verify the correctness of our protocol and software\n\n* Participate in team and community decision-making about technical design and architecture considerations\n\n* Participate in code reviews and evaluating contributions from the open source community\n\n* Contribute to documenting and educating the community about our protocols and blockchain software\n\n* Address bugs reports or security incidents and engage with users and researchers to understand and resolve them\n\n\n\n\nREQUIREMENTS\n\n\n* At least a Bachelor's degree in Computer Science (or related field) and 5+ years software development experience\n\n* Proficiency in a systems language like Go, Rust, or C++ with a focus on network and concurrent programming (Go is preferred)\n\n* Experience developing and debugging complex data structures, algorithms, and network I/O in a Linux environment\n\n* Development experience on a blockchain node client (preferably Ethereum-like) and familiarity with smart contract programming\n\n* Knowledge of blockchain fundamentals such as distributed consensus, peer-to-peer messaging, cryptography primitives\n\n\n\n\nBONUS POINTS\n\n\n* Knowledge of Ethereum protocols and technologies (e.g. devp2p, EVM, Web3, Solidity) and go-ethereum internals in particular\n\n* Ideally 2+ years solid experience with Go programming and some open source contributions that you can highlight\n\n* Knowledge of distributed systems fundamentals such as fault tolerance, consensus, voting, leader election, failure detection\n\n* Experience designing or implementing Proof of Stake and BFT-style consensus algorithms (e.g. Tendermint)\n\n\n\n\nDon't worry if you don't meet all the requirements. If you are talented and have what it takes, then we'd still like to hear from you.\n\nOur compensation is blockchain competitive and dependent on your skills & experience. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Ethereum, Design, Node, Golang, Engineer, Linux and Backend jobs that are similar:\n\n $70,000 — $110,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nLondon/Remote

Position Overview\n\nAs a Software Engineer, Intern, you'll have the opportunity to spend 12 weeks working on one (or more) of the engineering teams at SingleStore. As an intern, you will be at the forefront of real-time technology that’s revolutionizing how companies run their businesses every day. With release cycles throughout the year, our engineers are accustomed to moving quickly in a rapid production environment. To do this successfully, we work collaboratively and creatively across teams to maximize our opportunity for impact. We also believe it’s important to celebrate our wins together whether it be at local spot or getting out of the city for some exploring.\n\nAs a Software Engineer Intern, you will be empowered to own your projects end-to-end and be an active contributor throughout the product life cycle. To expedite your growth path, you will partner with engineers who deeply care about your success and will lend their expertise to your professional development. Our engineers are not just technical partners/mentors, but are also business partners who are exposed to all areas of the business, working with teams such as product, marketing, and sales.\nRole and Responsibilities\n\nOur Software Engineers work on small, collaborative teams to help drive our company forward. Whether you’re building new features using cutting-edge technologies like Kubernetes, building a reliable and scalable distributed cloud database, or productive developer experiences such as Jupyter Notebooks, state of the art SQL Query editor, Database schema management etc for SingleStore. Our interns are responsible for projects that are deployed into production in the next release after your internship. Your work will include everything from writing to testing software, and you’ll gain a significant understanding of both the product and the business. \nRequired Skills and Experience\n\n\n* Enrolled in a B.S. Degree in Computer Science, Electrical Engineering, Computer Engineering, or related discipline\n\n* Deep understanding of C.S. fundamentals\n\n* Strong programming skills with C++ or C or Golang or TypeScript\n\n* Passionate about building highly reliable software\n\n* Firm grasp of algorithms and data structures\n\n\n\nSoftware Engineer Interns can expect the following:\n\nA fully paid internship with an opportunity to work on challenging/interesting projects throughout the summer\n\nPost internship opportunities (new grad opportunities and/or additional internships)\n\nExposure to a hyper growth Silicon Valley scale up\n\nOne on one mentorship through our mentorship program to ensure our interns have all the necessary support in addition to having high level access to managers\n\nWorking on projects that matter: opportunities for projects to go live down the line\n\nHackathon - being able to work on an “intern” only team for the hackathon (with some help from our full time engineers)\n\nFeedback system throughout the internship and at the end, including weekly one on ones with mentors and managers\n\nCompany funded events in order to bond with fellow interns and full time employees (i.e baseball games, bowling, escape rooms)\n\nA full service office in San Francisco/Seattle which includes catered lunches\n\n\n\n\nSingleStore delivers the cloud-native database with the speed and scale to power the world’s data-intensive applications. With a distributed SQL database that introduces simplicity to your data architecture by unifying transactions and analytics, SingleStore empowers digital leaders to deliver exceptional, real-time data experiences to their customers. SingleStore is venture-backed and headquartered in San Francisco with offices in Sunnyvale, Raleigh, Seattle, Lisbon, Hyderabad, Dublin, and Singapore. \n\nConsistent with our commitment to diversity & inclusion, we value individuals with the ability to work on diverse teams and with a diverse range of people.\n\nTo all recruitment agencies: SingleStore does not accept agency resumes. Please do not forward resumes to SingleStore employees. SingleStore is not responsible for any fees related to unsolicited resumes and will not pay fees to any third-party agency or company that does not have a signed agreement with the Company.\n\nSingleStore values individuals for their unique skills and experiences, and we’re proud to offer roles in a variety of locations across the United States. Salary is based on permissible, non-discriminatory factors such as skills, experience, and geographic location, and is just one part of our total compensation and benefits package. Certain roles are also eligible for additional rewards, including merit increases and annual bonuses.\n\nSingleStore’s base salary range for this position, is: $25 - $50/hour USD\n\nFor candidates residing in California, please see our California Recruitment Privacy Notice. For candidates residing in the EEA, UK, and Switzerland, please see our EEA, UK, and Swiss Recruitment Privacy Notice. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Testing, Cloud, Golang and Engineer jobs that are similar:\n\n $55,000 — $77,500/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nSan Francisco, California, United States

\nClearmatics 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.\n\nClearmatics 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.\n\nThe 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.\n\nWe're looking to hire a Senior Software Engineer to expand our Layer 1 Engineering team.\n\nABOUT YOU\n\nAs an experienced backend software engineer with a good knowledge of blockchain protocols, you know what it takes to ship a secure, reliable, and performant blockchain node client. You write clean and maintainable code, and you take the time to promote good software engineering practices. You understand the importance of careful protocol design choices and can anticipate the impact of changes to the code base. You are able to communicate your thoughts clearly in writing and in discussions.\n\nRESPONSIBILITIES\n\n\n* Develop and maintain the blockchain node client (go-ethereum fork) and related protocol smart contracts (Solidity)\n\n* Implement new protocol-level features based on academic papers, technical specifications, and proof of concepts\n\n* Refactor the code base for better maintainability and to meet performance and reliability requirements\n\n* Develop distributed system tests and frameworks to verify the correctness of our protocol and software\n\n* Participate in team and community decision-making about technical design and architecture considerations\n\n* Participate in code reviews and evaluating contributions from the open source community\n\n* Contribute to documenting and educating the community about our protocols and blockchain software\n\n* Address bugs reports or security incidents and engage with users and researchers to understand and resolve them\n\n\n\n\nREQUIREMENTS\n\n\n* At least a Bachelor's degree in Computer Science (or related field) and 5+ years software development experience\n\n* Proficiency in a systems language like Go, Rust, or C++ with a focus on network and concurrent programming (Go is preferred)\n\n* Experience developing and debugging complex data structures, algorithms, and network I/O in a Linux environment\n\n* Development experience on a blockchain node client (preferably Ethereum-like) and familiarity with smart contract programming\n\n* Knowledge of blockchain fundamentals such as distributed consensus, peer-to-peer messaging, cryptography primitives\n\n\n\n\nBONUS POINTS\n\n\n* Knowledge of Ethereum protocols and technologies (e.g. devp2p, EVM, Web3, Solidity) and go-ethereum internals in particular\n\n* Ideally 2+ years solid experience with Go programming and some open source contributions that you can highlight\n\n* Knowledge of distributed systems fundamentals such as fault tolerance, consensus, voting, leader election, failure detection\n\n* Experience designing or implementing Proof of Stake and BFT-style consensus algorithms (e.g. Tendermint)\n\n\n\n\nDon't worry if you don't meet all the requirements. If you are talented and have what it takes, then we'd still like to hear from you.\n\nOur compensation is blockchain competitive and dependent on your skills & experience. \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Ethereum, Design, Node, Golang, Engineer, Linux and Backend jobs that are similar:\n\n $60,000 — $110,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nLondon/Remote

Qredo is a decentralized digital asset management infrastructure and product suite designed to unlock new opportunities for institutional investors in digital assets and decentralized finance. Qredo's Layer 2 blockchain protocol enables users to seamlessly transfer and settle BTC, ETH, and ERC-20 tokens. Assets are secured by Qredo’s advanced Gen 2.0 multi-party computation (MPC), which provides tier-1 bank security and institutional-grade governance.\n*** This is a remote opportunity. We welcome candidates around the globe to apply! *** \nThis is a hands-on role for a highly experienced backend services developer with an interest in blockchain and cybersecurity, and a depth of knowledge and passion for building secure solutions. We can offer unique technical challenges, a supportive and creative environment with the opportunity to have an important role in a fast-growing organisation.\nYou will focus on creating Qredo’s core backend services, a part of larger suite of functionality within its digital asset custody and transfer platform. You will work directly on our core backend codebase, contributing to product design decisions and getting involved in the day-to-day activities of a small but highly productive development team. This is the perfect role for a highly experienced software developer who enjoys adopting new technologies and who sets high standards for themselves and those around them. \nResponsibilities\n\n\n\n* Write high-quality Go code\n\n* Collaborate with colleges to design architecture and test code\n\n* Where possible contribute to our other code bases in C, C++, Python and JavaScript\n\n* Define and follow coding standards (style, testing, reusability etc.)\n\n* Keep informed about new technologies and techniques that will help Qredo to achieve its goals\n\n* Ensure code is deployed safely\n\n* Contribute ideas to our product development process\n\n* Problem solving – including problem diagnosis, bug fixing, troubleshooting and firefighting\n\n* Be available for out of hours support\n\n* At your discretion get involved with other aspects of the work of the R&D Department\n\n\n\nRequirements\n\n\n\n* Computer Science Degree or equivalent industry experience\n\n* 5 years+ experience in software development including minimum 5 years Golang commercial experience\n\n* Proven experience with producing production-ready and highly scalable applications\n\n* Excellent knowledge in Linux shell, scripting and popular CI/CD tools\n\n* Excellent knowledge of Docker and Git\n\n* Experience with SQL (Postgres), NoSQL and distributed databases\n\n* Experience with microservice architecture, message queues and fast k/v stores (Redis)\n\n* Excellent knowledge of HTTP protocol internals, Websockets and RestAPI principles\n\n* C/C++, Python or Javascript is a plus\n\n* Good teamwork and communication skills\n\n* Excellent English \n\n\n\nQredo offers\n\n\n\n* Flexibility to work from anywhere and possibility for international transfer\n\n* Assistance with home office setup as well as offsite team building allowance\n\n* Culturally diverse work environment (we speak 33 languages!)\n\n* Great career development opportunities in a growing company\n\n* Competitive compensation and benefits package within the industry\n\n\n\n \n\n#Salary and compensation\n No salary data published by company so we estimated salary based on similar jobs related to Design, Python, Docker, JavaScript, NoSQL, Golang, Engineer, Linux, Backend and Digital Nomad jobs that are similar:\n\n $60,000 — $120,000/year\n
\n\n#Benefits\n 💰 401(k)\n\n🌎 Distributed team\n\n⏰ Async\n\n🤓 Vision insurance\n\n🦷 Dental insurance\n\n🚑 Medical insurance\n\n🏖 Unlimited vacation\n\n🏖 Paid time off\n\n📆 4 day workweek\n\n💰 401k matching\n\n🏔 Company retreats\n\n🏬 Coworking budget\n\n📚 Learning budget\n\n💪 Free gym membership\n\n🧘 Mental wellness budget\n\n🖥 Home office budget\n\n🥧 Pay in crypto\n\n🥸 Pseudonymous\n\n💰 Profit sharing\n\n💰 Equity compensation\n\n⬜️ No whiteboard interview\n\n👀 No monitoring system\n\n🚫 No politics at work\n\n🎅 We hire old (and young)\n\n
\n\n#Location\nRemote - Lisbon, Portugal