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.
QA Engineer (Go, blockchain, distributed system)
Swarm is a system of peer-to-peer networked nodes for a decentralized storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network. Bee provides low level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Your role: This role expects the candidate to function as a large node operator, conducting testing and immersing themselves in the responsibilities of node operators. This requires experience in a comparable QA position, as well as an interest in DevOps-related areas. However, we consider motivation and initiative-taking to be the most crucial qualities that the ideal candidate should possess.
The responsibilities of the role: Writing and executing end-to-end test scenarios on testnet and mainnet in order to assure performance and reliability. Submit detailed bug reports and issues to our developers' team. Give the green light to the developers' team to proceed with a release. Be an active part in shaping the way our products are built by analyzing how functionality, user experience and performance could be improved.
This role is an excellent opportunity, as in the future we expect the QA team to grow and therefore this role could open the possibility of becoming the QA team lead.
Your profile: * You have at least 3 years of hands-on experience in a similar position. * Solid understanding of distributed systems * Experience in executing manual and automated tests interacting with the API. * Be able to set up different environments to perform automated testing on them. * You are familiar with the blockchain ecosystem. * Experience in managing panels and dashboards for monitoring, * Familiarity with Ethereum is a must. * You can express yourself fluently in English, both verbally and in writing. * You manage your own time effectively and respect time constraints. * You like to take initiative. * You are available around CET timezone.
We appreciate: * You are familiar with Golang. * Exposure to infrastructure-related tasks (will be needed to set up environments). * Familiarity with Grafana, Loki and Prometheus * General acquaintance with cryptographic concepts. * Experience with the Javascript ecosystem.
We offer/Team perks: * An open, flat and transparent work environment * 100% remote-friendly * Flexible working hours * We care about our swarm: Incentives through BZZ, our token
To apply, please send your CV and GitHub repo to talent@ethswarm.org.
Swarm is a system of peer-to-peer networked nodes for a decentralised storage and communication service.
Swarm could shape the future towards a self-sovereign global society and permissionless open markets. On Swarm, applications run autonomously yet securely in a planetary-scale deployment and execution environment.
Bee is a Swarm client implemented in Go. It’s the basic building block for the Swarm Network. Bee provides low-level constructs for file storage, feeds, key-value stores and untraceable communication, through solid, well-tested code delivered in an agile manner.
Key technologies are Go, libp2p, protobuf, leveldb, and go-ethereum, as well as various cryptographic libraries.
Should you be interested in the position, please send your CV and GitHub repo to talent@ethswarm.org.
Sologenic is disrupting the asset trading industry: Tokenized Securities, Crypto Assets \u0026 NFTs. Join the team and let\'s make the future of DeFi. (sologenic.org and sologenic.com)\u000A\u000ASologenic is also developing \"Coreum\" a new Layer-1 Blockchain. The team is currently looking to hire 3 Golang Developers. (www.coreum.com)\u000A\u000AResponsibilities\u000A* Take part in software architecture, lead development (from scratch) and maintenance of a new Cosmos SDK \u0026 CometBFT (Tendermint) based blockchain\u000A* Collaborate with the team to create third-party services rooted in the developed blockchain, enhancing core functionalities.\u000A* Conceptualize and develop innovative features, ensuring a balance between user experience and technical intricacies.\u000A* Perform code reviews and lead small development team (2-3 engineers)\u000A\u000ARequired Skills\u000A* 4+ years of experience in blockchain technologies\u000A* 2+ years of experience with cosmos SDK \u0026 CometBFT (Tendermint)\u000A* 3+ years of development experience using Golang\u000A* Comprehensive knowledge in blockchain architecture, design, development, and maintenance.\u000A* Proven track record with at least one production-ready blockchain project (testnet or mainnet phase).\u000A* Intermediate+ proficiency in English.\u000A\u000AAdditional Preferred Skills\u000A* Experience with Ethereum \u0026 XRP ledger\u000A* Basic knowledge in trading\u000A\u000AThis is a remote job.\u000A\u000APerks \u0026 Benefits\u000A* Crypto Bonus\u000A* Summits and Events Tickets\u000A\u000AInterview Process\u000AVideo Call\u000A
Coreum, a pioneer in the Layer-1 blockchain sector, is currently seeking a Senior Golang Developer eager to embark on the blockchain journey and master the Cosmos SDK. As a Senior Software Engineer, you should possess an independent and autonomous mindset. We anticipate that you will independently acquire a fundamental understanding of blockchain technology as well as the Cosmos SDK, with minimal reliance on guidance from fellow team members.\u000A\u000AResponsibilities:\u000A- Core Features: Learn Cosmos SDK and contribute to the core functionalities of Coreum.\u000A- Service Development: Collaborate with the team to create third-party services rooted in the developed blockchain, enhancing core functionalities.\u000A- Feature Ideation: Conceptualize and develop innovative features, ensuring a balance between user experience and technical intricacies.\u000A- Team Leadership: Conduct code reviews and guide a compact development team of 2-3 engineers.\u000A\u000AEssential Qualifications:\u000A- Minimum of 7 years of hands-on experience as software engineer.\u000A- 3 or more years of development experience using Golang.\u000A- Good understanding of basic applications of cryptography.\u000A- Knowledge of any blockchain technology is a plus\u000A- Intermediate+ proficiency in English.
Coreum, a leading innovator in the Layer-1 blockchain domain, is actively seeking a skilled Blockchain Developer proficient in Golang and Cosmos SDK.
Key Responsibilities: - Software Architecture Development: Spearhead the architecture, development (from scratch), and maintenance of a new blockchain based on Cosmos SDK, CometBFT (Tendermint). - Development: Collaborate with the team to create third-party services rooted in the developed blockchain, enhancing core functionalities. - Feature Ideation: Conceptualize and develop innovative features, ensuring a balance between user experience and technical intricacies. - Team Leadership: Conduct code reviews and guide a compact development team of 2-3 engineers.
Introduction
ChainSafe is a leading blockchain research and development firm specializing in infrastructure solutions for the decentralized web. Alongside its contributions to significant ecosystems such as Ethereum, Polkadot, Filecoin, Mina, and more, ChainSafe creates solutions for developers and teams across the web3 space utilizing our expertise in bridging, gaming, NFTs, and decentralized storage. As part of the mission to build innovative products for users and better tooling for developers, ChainSafe embodies an open-source and community-oriented ethos.
To learn more about ChainSafe, look at our Discord, GitHub, and website.
Here’s what you need to know before reading on:
Our progressive tech stack 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 You’ll form part of the Sygma Engineering team, our bridging protocol At Sygma we believe that cross-chain interoperability is the fundamental enabler for the next wave of growth in the blockchain industry. Sygma will empower builders to create streamlined experiences where users are not confined to one ecosystem. By enabling elaborate cross-chain functionality and putting most of the steps under the hood, Sygma will enable smooth, web2-like user experiences. For more information about Sygma please visit buildwithsygma.com
At ChainSafe, you’ll be part of a team that believes in the community's vital importance and contributes to advancing humanity with open-source and decentralized technology.
About the role
As our Senior BlockOps engineer for Sygma, our cross-chain interoperability protocol, you will play a vital role in our dedicated BlockOps team, defining and implementing best-practice strategies and guides to manage and optimize our infrastructure.
The BlockOps team supports the critical systems, services, and tooling at the foundation of Sygma’s mission, to abstract away all the complexities of cross-chain interoperability to enable users to ‘deposit from anywhere’. We enable Sygma’s engineers to design, develop, and operate services quickly, safely, securely, and reliably. BlockOps teams build and maintain the platforms critical to the existence of Sygma.
Your expertise will undoubtedly contribute to the sophistication of blockchain applications and redefine the boundaries of what's possible within this emerging technological sphere. All work across Sygma will be open-source, ensuring expansive opportunities for deep contribution and collaborative efforts across various web3 blockchains and ecosystems.
Responsibilities
What you will be doing
Ensure reliable operation of the company’s distributed Relayer nodes operations across various blockchain networks (EVM, Substrate, Cosmos SDK) while adhering to internal SLAs and committed KPIs Design and implement procedures related to Sygma’s Relayer node operations (deployment and upgrade, incident response, and key management) Build monitoring and observability for various Sygma services including a distributed set of relayers and various blockchain full nodes. Provide training and guidance for other members of the infrastructure team, ensuring round-the-clock node operation and incident response. Document and communicate technical details via open-source documentation Collaborate with various internal teams and the wider community to build, expand, and scale Sygma’s architecture, by tapping into new trends and opportunities highlighted by internal data, blockchain research, and the wider blockchain ecosystem Requirements Solid dev. experience with Golang Experience working with AWS services Demonstrable experience with modern Infrastructure as Code (IaC) tools (Terraform, Helm, Ansible, etc), automating deployment, and best CI/CD practices and tools. Experience with monitoring and alerting tools (DataDog, Grafana, Prometheus, etc.) Experience implementing distributed tracing, monitoring, and logging systems using OpenTelemetry Protocol Experience building and participating in incident response systems (PagerDuty, etc) and handling the emergency response to production environment failures. In-depth knowledge of distributed systems and blockchain technology. Excellent communication skills with the ability to document and convey technical details clearly Ability to work autonomously as well as with the wider team As a plus: TypeScript, Solidity, or Rust is a big plus Experience with specifying, procuring, and setting up infrastructures for Blockchain validator nodes, and managing them across several blockchain networks. Experience automating network deployment and testing of SmartContracts with various tools (Truffle, HardHat, Foundry, Anvil) Understanding at least two of the following domains - Web Security, Web3 Security, Cloud Security, Systems Security, and Applied Cryptography. Hiring Steps Selected candidates will be invited to a 30–to–45–minute screening call with one of our tech recruiters Next, candidates will be invited to a 60-minute values interview with one of our team members Technical 60-minute interview with one of our engineers. Then, candidates will be asked to complete a technical task in under 10-15 hours. Your time and expertise demonstrated in the work test challenge will be compensated upon completion. Your time and expertise demonstrated in the work test challenge will be compensated After the completion of the test assignment call with Engineering team to discuss the results, for 60 minutes. Lastly, candidates will be invited to a 60-minute interview with the hiring team members
Why Join ChainSafe
Founded by developers for developers, ChainSafe is a remote-first company with an international team. We continue to provide opportunities for personal and professional growth, value autonomy and responsibility, have a results-driven environment, and offer flexible work hours.
We care deeply about our values and look for these attributes in every new team member. In addition, we recognize the benefits of cultivating a diverse team and aspire to embed respect for all people into our culture. We encourage women, the LGBTQIA+ community, people of colour, and members of any other group underrepresented in the blockchain space (or tech in general) to apply.
How to Apply
Please fill out the Greenhouse application form below and ensure that you attach your resume and link your Github/Gitlab profile or any software project you have contributed to (if applicable).
**We are Confio, the team behind CosmWasm. **
A leading force in blockchain technology development, decentralized business models, and innovative approaches to finance. As prominent contributors to CosmWasm, we are actively involved in exciting open-source projects. With strong expertise in the open-source field, we place great value on producing high-quality code and rigorous testing, continuously pushing the boundaries of what technology, governance, and finance can achieve.
Our international team is composed of individuals from diverse backgrounds and experiences. We thrive on challenging ourselves, stepping out of our comfort zones to explore new possibilities, and fostering a culture of continuous learning and teaching.
At Confio, we prioritize the well-being of our employees and embrace remote work. We understand the importance of work-life balance and offer flexibility to ensure our team members can achieve it. Rather than focusing on hours worked, we emphasize results and outcomes as the true measure of success.
The role We are looking for a Golang Engineer to join our team to work mainly on CosmWasm SDK – the SmartContracts engine for Cosmos, as well as CosmWasm Tracing– a tool that meticulously monitors all activities within a CosmWasm chain. You will: • work with Cosmos SDK and contribute to our smart contract platform • build tools to work with Cosmos chains, including CosmWasm Tracing • implement monitoring services • build off-chain services and infrastructure
You
• have at least 3 years of professional experience with Golang as a software engineer, of which at least 1 year in Cosmos;
• love solving engineering problems;
• value code quality, documentation, and delivering;
• are good a communicator and respectful with your team and the open-source community;
• like spending a lot of time on edge cases that almost never happen;
• are patient and think things through carefully;
• are self-organized and willing to write and sort your own tickets
• can communicate fluently in English (verbal and written);
• live in a time zone that is +/- 2h from Berlin;
• Bonus: blockchain experience, Cosmos SDK knowledge is a big plus;
• Bonus: experience of working in open source projects.
We offer
• a community which is at the forefront of open source development;
• the opportunity to achieve a work-life balance. We prioritize quality of life and do not expect additional hours or after-hours/weekend availability; our team members have the flexibility to work during the hours that suit them best;
• the flexibility of a fully remote role. We all work within a 2 hour +/- time zone of Berlin but ensure we meet in person for team bonding events. We encourage local team meet ups and our most recent whole company retreat was a week in Portugal;
• a learning and teaching environment; we believe in continuous learning and improvement. You will be surrounded by experienced engineers who are eager to share their knowledge and equally interested in learning from you;
• a competitive salary.
**THE COMPANY ** Solsten is advancing the human experience by empowering companies to build deeply resonating and healthier human-centered digital experiences and products.
At the intersection of play, psychology, and AI, our suite of products (Traits, Navigator, and Wavelength) give brands the ability to understand and meet their audiences’ experiential expectations at every step of their journey—ushering in a new era of technology that is better for people, and brilliant for businesses.
**THE ROLE ** Our engineering team is responsible for creating the platform that empowers this next generation of digital resonance. As a part of this team, you will work within a world-class team of engineers as well as with data scientists and UX designers to build the Solsten platform and products. As a Senior Backend Engineer, you will bring your own technical expertise, help design new services as well as improve current ones, and carry projects from initial requirements, implementation, up to production.
**WHAT YOU WILL DO ** * Design software architecture based on business requirements, strategy, and priorities * Design and implementation of Microservices in Go * Write reusable, testable, and efficient code * Write highly scalable, high volume services * Create optimized database schemas * Advise and implement best practices in multiple technical domains * Proactively seek and realize new value-add opportunities for customers * WHAT WE’RE LOOKING FOR * BS/MS degree in Computer Science, Engineering or a related subject * 7+ years of practical backend development * Demonstrated experience with building Microservices in Go as well as high load production systems based on microservice architecture * Very knowledgeable about distributed systems and technologies (gRPC, Kafka, NoSQL, SQL, Redis, ...) * Hands-on experience with leading commercial Cloud platforms, preferably GCP * Sound understanding of Software Development Life Cycle * Experience working in Agile/Scrum environments * Pay attention to detail and strive for excellence in all aspects of your work * Manage complex situations with a structured and organized approach * Strong communicator that expresses ideas and information clearly and concisely * Detail-oriented, with excellent analytical, technical and problem-solving skills * A portfolio of activities / a side project that showcases your intellectual curiosity **WHAT MAKES YOU STAND OUT ** * Hands-on experience with Kubernetes * gRPC / Protobuf experience * DevOps and application deployment skills * Python is a plus * Experience with message brokers * Good ability to derive and design technical specifications from general product requirements * Familiarity with and interest in psychometric data
**YOUR SOLSTEN EXPERIENCE ** At the heart of Solsten is our people. We pride ourselves with the incredible team that makes up the company and are deeply humbled by each one of our employees. We have grown beyond measure and have amassed an incredible team of talented, passionate, and amazing individuals. It is our biggest priority to give all members of Solsten the space and motivation to WANT to journey on this career path with us and continue to be a part of our success. Here are some of the things our current employees appreciate:
Our team is spread out across the world, with hubs in Berlin, and Minneapolis. We believe that having our team close to one another fosters better communication and productivity. This role requires you to be based in Berlin, Germany where you will have an exciting working environment.
**OUR COMMITMENT ** Solsten is committed to creating a diverse environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender identity or expression, sexual orientation, national or ethnic origin, genetics, disability, or age.
The Role: We’re looking for a senior-level Backend Engineer who wants to develop event-driven, cloud architecture microservices in Go and who has existing production experience in Go. Our systems are deployed via GitHub Actions, containerized and deployed into AWS managed Kubernetes. Other elements of our architecture are Kafka, Postgres, and Redis. The ideal candidate is a fast learner, accountable, owns the problem, has a knack for creative problem-solving, and is a low-ego team player. You will join Nacelle’s core development team to develop and build new features for our backend systems. You will work directly with a team of talented engineers and product leaders.
Responsibilities Include: * Collaborate closely with Product to build impactful new technology for our customers * Build and maintain microservices in Golang while leveraging our modern cloud architecture * Conduct code reviews to ensure standards of qualify and observability are met * Write and maintain automated tests
Skills & Qualifications: * 7+ years of in-production backend developer experience * 5+ years of in-production Golang experience * 4+ years developing and deploying modern microservices
Nice to Have: * Experience in the ecommerce space * Experience in a fast-paced, VC-backed, remote SaaS startup