<h2 id="about-us">About Us</h2><p>Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.</p><p>We are a diverse team of 70+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.</p><h2 id="position-overview">Position Overview:</h2><p>As a senior software engineer, you will join one of our engineering teams to assist in building and maintaining tools and automation to support our validator operations. We take the upstream node software from projects like Ethereum, Solana, Cosmos, or Avalanche; compile it; run it on one of our servers; and then make sure it is reliable and secure, monitor it, and keep it up to date. We do this for more than 60 blockchain networks, which means that it is not feasible to do all of this by hand. Instead, we build automation. Some of the things we do:</p><ul><li><strong>Contribute to upstream software to improve observability, and build monitoring tools from scratch where none exist.</strong> The teams that build the node software are not the teams that operate this software at scale, and as such, observability is often not a first priority. We develop our own tools for on-chain and off-chain monitoring, both for short-term metrics (to alert on) and long-term metrics to measure our performance, and to support optimisation decisions.</li><li><strong>Build tools to track and manage our fleet of servers.</strong> We work mostly with bare-metal servers across multiple providers. This means that no vendor-specific portal is going to give us a complete overview of our infrastructure, instead we have an in-house tool that integrates with vendor APIs and gives us a central overview.</li><li><strong>Automate machine provisioning.</strong> Instead of working with 10+ cloud and bare metal providers’ flavor of installing Ubuntu, we build our own installer that is uniform across our infrastructure.</li><li><strong>Track and automate builds.</strong> Each of the 60+ networks we operate regularly releases updates. It would be tedious to manually git pull &amp;&amp; make for every release, instead we have automation watching for new releases that automatically builds them and registers them in our package registry.</li><li><strong>Automate updates and failover.</strong> When we have a new package, we still need to roll it out to our fleet and restart any nodes, in a controlled manner and without downtime. For validating nodes, we also need to fail over before we restart them, and confirm the new node is healthy. To automate this, we need to have 100% confidence in our tooling, because a mistake here can lead to double-signing, which incurs a financial penalty.</li><li><strong>Automate snapshot creation and storage.</strong> Blockchains node software is stateful in nature: the chains are often terabytes in size. While it is possible for new nodes to sync from the p2p network, this can take days to weeks, which means it is not a suitable method when we move workloads between machines. We automate taking snapshots of this data, so we can be more flexible about what runs where, without compromising on security.</li></ul><h2 id="our-internal-tooling">Our internal tooling:</h2><p>It is written in a mix of Rust, Python, Go, and a bit of TypeScript. We use Postgres as our database of choice. We deploy our code either directly onto Ubuntu hosts, running under systemd or in Docker containers, and we also have a Kubernetes cluster running various stateless applications. Due to the diverse nature of the software we run, we also have to occasionally dive into codebases written in C, C++, OCaml, or TypeScript.</p><p>You can learn more about our approach to operating nodes in <a class="font-medium hover:text-gray-900 transition-colors" href="https://handbook.chorus.one/chorus-one/intro.html" target="_blank" rel="noopener">our Network Handbook</a>.</p><h2 id="key-responsibilities">Key Responsibilities</h2><ul><li><strong>Design and develop new features</strong>. Discuss with internal stakeholders to clarify how our&nbsp;next feature should look, discuss with fellow engineers how it should be implemented,&nbsp;and then drive implementation to completion.</li><li><strong>Support and collaborate</strong>. Review and discuss engineering designs, review code, help&nbsp;fellow engineers, and mentor them on a technical level.</li><li><strong>Innovation and continuous improvement</strong>. Seek to simplify, optimize, and secure our&nbsp;staking services and systems.</li><li><strong>Take part in on-call rotation approximately 2 days per month.</strong>&nbsp;You will be responsible for automation that manages our validators and infrastructure, including its uptime and incident response.</li></ul><h2 id="job-requirements">Job requirements</h2><p><strong>What we are looking for:</strong></p><ul><li>5+ years experience as a Software Engineer.</li><li>Experience with operating and maintaining server-side software in production.</li><li>Deep understanding of at least one compiled statically typed programming language such as Rust, Go, Kotlin, C++, or Haskell.</li><li>Experience with at least one scripting language such as Python.</li><li>Experience using SQL databases, preferably PostgreSQL.</li><li>Strong communication skills and ownership to drive new features independently.</li><li>Interest in blockchain technology, in particular distributed systems and consensus algorithms.</li><li>Affinity with infrastructure and the lower levels of Linux userspace.</li><li>You are able to work in the following time zone: Switzerland ± 6 hours.</li></ul><h2 id="what-we-offer">What We Offer:</h2><p>🌱 <strong>Growth &amp; Learning</strong></p><p>We’re committed to your development! Benefit from an annual <strong>3,000 CHF learning budget</strong> that goes beyond just conferences—supporting your physical, emotional, and mental well-being too. Attend up to <strong>two conferences a year</strong> to dive deeper into the Web3 space and connect with the community. Plus, jumpstart your crypto journey with our <strong>$1,000 Crypto Starter Kit</strong> to explore and engage with cryptocurrencies hands-on.</p><p>🤝 <strong>Collaborative Culture</strong></p><p>Collaboration is woven into our DNA. We thrive in <strong>multiplayer settings</strong>, ensuring every voice contributes to our mission. Connect across teams through our <strong>buddy programs, regular virtual coffee chats,</strong> and <strong>biannual retreats</strong>, which offer unparalleled opportunities to build stronger relationships while tackling some of the industry’s most exciting challenges.</p><p>✈️ <strong>Retreats in Iconic Destinations</strong></p><p>Twice a year, we bring the entire team together for <strong>all-expenses-paid retreats</strong> in inspiring locations. Past retreats have taken us to <strong>Kenya, the USA, South Korea, Switzerland, Spain, Turkey, Thailand,</strong> <strong>Dubai and Japan.</strong> Our next stop? <strong>Budapest, Hungary!</strong> These retreats are designed to recharge, connect, and spark innovation.</p><p>🏡 <strong>Work From Anywhere</strong></p><p>Embrace <strong>remote flexibility</strong> that empowers you to work from anywhere in the world. Prefer a coworking space? We’ve got you covered with a <strong>500 CHF/month coworking budget</strong>. And for those growing their families, enjoy <strong>paid parental leave</strong> to ensure your personal and professional lives align seamlessly.</p><p>🗣️ <strong>Radical Transparency</strong></p><p>We practice <strong>radical candor</strong>, fostering an environment of open, honest feedback that helps us grow individually and as a team. Expect a culture where learning from each other is not just encouraged—it’s celebrated.</p><p>💸 <strong>Compensation &amp; Equity</strong></p><p>We offer a <strong>competitive fixed salary in your preferred local currency or stable coins</strong>, complemented by <strong>stock options</strong>, giving you a stake in the exciting future we’re building together.</p><p>💼 <strong>Employment</strong></p><p>We offer flexibility to suit your individual needs. With the ability to provide local employment in <strong>over 150 countries</strong>, you’ll have access to local benefits tailored to your region. Prefer contractor status instead? That’s an option too. During the offer, we work with you to determine the best arrangement, ensuring your experience aligns with your personal and professional preferences.</p><p>✨ Curious to see what life at Chorus One is really like? <strong>Check out</strong> these videos for a behind-the-scenes look:</p><ul><li><a class="font-medium hover:text-gray-900 transition-colors" href="https://www.youtube.com/watch?v=CYF3Uv7xiuc" target="_blank" rel="noopener">Culture at Chorus One</a></li></ul>

Senior Software Engineer (Infrastructure)

<h2 id="about-us">About Us</h2><p>Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.</p><p>We are a diverse team of around 75 people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.</p><h2 id="role">Role</h2><p>As a Data Engineer, you will be responsible for the design, implementation, and maintenance of data pipelines that power user-facing products as well as internal tools. You will integrate with internal blockchain RPC nodes and third-party APIs to fetch stake and rewards data for multiple blockchains, and store and process this data to power internal reports and dashboards, as well as external customer reporting. You will play a critical role in enabling data-driven decision-making.</p><p>Our current data pipelines are implemented in Python, and run on a mix of Apache Airflow and Kubernetes, storing data in Postgres and Google Cloud Storage. We use various dashboarding and analysis tools, including Streamlit.</p><h2 id="responsibilities">Responsibilities</h2><ul><li>Implement data pipelines that ingest rewards, pricing and commercial contract data. Ensure data quality via automated sanity checks.</li><li>Maintain automated workflows that make assets-under-management numbers and APY data available to our website and third parties.</li><li>Develop and maintain internal dashboards for the presentation and analysis of company revenue data, assets under management, and a detailed breakdown of these numbers.</li><li>Work with cutting-edge blockchain technology, so all of the above data is available at the moment when a new blockchain network launches.</li><li>Collaborate with our Networks, Engineering, Finance, and Customer Success teams to understand data needs and deliver on business requirements.</li></ul><h2 id="job-requirements">Job requirements</h2><p>What we are looking for:</p><ul><li>Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field</li><li>Prior experience with Python and REST APIs</li><li>Experience with SQL, preferably PostgreSQL</li><li>Strong communication skills to collaborate effectively with both technical and non-technical stakeholders</li><li>Familiarity with dashboarding tools such as Streamlit, Metabase, or Observable, and pipeline orchestrators such as Apache Airflow or Dagster</li><li>Affinity or interest in blockchains and proof of stake. Prior experience is not a requirement, but definitely an advantage.</li><li>You are able to work in the following time zone: Switzerland ± 6 hours</li></ul><h2 id="our-offer">Our Offer</h2><ul><li>Autonomy and ownership in a friendly and supportive work environment and the opportunity for rapid growth.</li><li>Competitive fixed compensation (65k–110k USD commensurate with experience) + equity.</li><li>Part-time optional, 80% – 100%.</li><li>All-expense paid biannual team retreats at various destinations. Past retreats took place in Egypt, Serbia, Kenya, USA, South Korea, Dubai, Thailand, Spain, and Japan.</li><li>Remote, but not alone. We are a strong global collaborative environment.</li><li>Remote working budget (laptop, co-working space, etc.)</li><li>Personal development budget</li><li>Gather experience and build your network in the vibrant crypto ecosystem.</li><li>Learn about state-of-the-art protocols that lay the foundation for an open, transparent, and programmable financial system.</li></ul>

Data Engineer (Rewards Data)

<p>Quantitative Software Engineer<br>Globally Remote / Engineering / DeFi Protocol</p><h2 id="who-we-are">Who We Are</h2><p>We are building a cutting-edge delta-neutral trading protocol that captures volatility and yield across BTC, ETH, and liquid altcoins through advanced basis trading, OTC liquidity strategies, and perpetual derivatives.</p><p>By combining market-neutral strategies and innovative hedging solutions, we provide unparalleled capital efficiency for institutional and advanced traders. Our team has deep experience from leading crypto protocols, traditional finance firms, and exchanges, backed by top-tier investors and partners. We are creating the next generation of yield-optimised trading infrastructure for the digital asset markets.</p><h2 id="what-we-are-building">What We Are Building</h2><p>We are pioneering a delta-neutral, volatility-driven trading infrastructure designed to enable scalable exposure to major digital assets while managing directional risk. Our protocol integrates:</p><ul><li><strong>Delta-Neutral Strategies:</strong> Leveraging basis trades, funding rate arbitrage, and hedging for consistent, market-neutral yield.</li><li><strong>OTC Integration:</strong> Discounted asset acquisition for cost optimisation and arbitrage opportunities.</li><li><strong>Automated Hedging:</strong> Combining perpetual futures, options, and liquidity strategies to minimise risk.</li></ul><p>This platform is tailored to institutions, treasuries, and sophisticated market participants looking for capital-efficient yield in the crypto space.</p><h2 id="who-we-are-looking-for">Who We Are Looking For</h2><p>We are seeking a Quantitative Software Engineer who is excited to work at the intersection of financial innovation and frontier technology. You are a problem-solver who thrives in a fast-paced, zero-to-one environment and have a passion for designing sophisticated trading systems.</p><p>You will play a pivotal role in building and optimising the internal trading and arbitrage platform, enabling automated delta-neutral strategies that scale across both centralised exchanges and DeFi markets.</p><h2 id="role-summary">Role Summary</h2><p>The Quantitative Software Engineer will develop and maintain a high-performance internal trading and arbitrage platform. You will design automated delta-neutral derivative strategies, integrate with smart contracts, and collaborate across teams to deliver robust trading solutions for real-world market conditions.</p><h2 id="key-responsibilities">Key Responsibilities</h2><ul><li>Develop and maintain an internal trading and arbitrage platform, focusing on real-time low-latency data capture, order execution, and risk monitoring. Design and implement automated delta-neutral derivative strategies across centralised venues and DeFi smart contracts. Establish secure and efficient connectivity with</li><li>custody providers, centralised exchanges, and OTC desks for seamless trading operations. Optimise systems for</li><li>latency, scalability, and high-performance execution.</li><li>Collaborate with smart contract engineers to integrate delta-neutral strategies within DeFi ecosystems.</li><li>Build internal monitoring tools to track risk, funding rates, and arbitrage opportunities</li><li>in real-time. Work cross-functionally with other engineers and quantitative analysts to drive product innovation.</li></ul><h2 id="qualifications">Qualifications</h2><ul><li>Minimum 2 years’ professional experience at a reputable crypto trading firm, hedge fund, DeFi protocol, or digital asset exchange, with a proven track record of delivering high-quality trading systems in production environments.</li><li>Expert-level proficiency in Python programming, with demonstrable experience in architecting, developing, and maintaining robust, high-performance trading systems. Experience with advanced Python libraries (e.g., NumPy, pandas, asyncio, websockets) and hands-on exposure to asynchronous, event-driven programming is required.</li><li>Proficiency in Rust/C++/Go is highly desirable, including experience in building performance-critical components, low-latency systems, or integrating low latency modules with Python applications.</li><li>Hands-on experience with market-making engines or quantitative trading platforms, including system design, order management, strategy implementation, and real-time risk management. Familiarity with order book dynamics, liquidity provisioning, and exchange connectivity (REST/WebSocket APIs, FIX protocol, etc.) is essential.</li><li>Deep understanding of networking, CPU and memory models, and low-level programming concepts, including multi-threading, concurrency, and performance profiling. Experience with optimizing system resource usage and troubleshooting latency or throughput bottlenecks is required.</li><li>Familiarity with Solidity and blockchain fundamentals, including smart contract development, security best practices, wallet integration, and decentralised infrastructure (e.g., EVM-compatible chains, Layer 2 scaling solutions, bridges).</li><li>Demonstrated quantitative and analytical skills, including experience designing, backtesting, and optimizing quantitative trading strategies. Strong grasp of statistics, probability, and time-series analysis; proficiency in using simulation frameworks and data analysis tools.</li><li>Strong understanding of financial markets and market microstructure, especially in the context of crypto assets, derivatives, and DeFi protocols.</li><li>Experience working with large-scale data pipelines and real-time data processing, including ETL design, data validation, and integration with cloud-based or distributed systems (e.g., Kafka, Redis, TimescaleDB).</li><li>Comfortable with DevOps practices, including containerization (Docker), CI/CD pipelines, infrastructure-as-code, and monitoring/alerting tools.</li><li>Ability to work collaboratively in a remote-first, fast-paced environment, including excellent communication skills, self-motivation, and the capacity to manage multiple priorities and deliver under tight deadlines.</li><li>Fluent in English, both written and spoken, with the ability to clearly explain complex technical concepts to both technical and non-technical stakeholders.</li><li>Bachelor’s degree or higher in Computer Science, Mathematics, Engineering, Physics, or a related quantitative discipline is strongly preferred.</li></ul><h2 id="our-engineering-stack">Our Engineering Stack</h2><ul><li><strong>Frontend:</strong> React, Next.js, Wagmi, Viem, TailwindCSS.</li><li><strong>Backend:</strong> Python, Solidity, SQL, GraphQL, Docker, AWS, Ethereum.</li></ul><h2 id="what-we-offer">What We Offer</h2><ul><li>Competitive Salary: Commensurate with experience.</li><li>Globally remote working opportunities with flexible hours.</li><li>An opportunity to build the next generation of yield-optimised trading infrastructure in crypto.</li><li>Collaboration with a world-class team driving innovation in delta-neutral strategies and OTC trading.</li><li>The chance to work on a protocol that bridges centralised and decentralised markets, delivering solutions for institutional-grade DeFi.</li></ul><h2 id="why-join-us">Why Join Us?</h2><p>If you are passionate about building automated delta-neutral strategies, low-latency systems, and cutting-edge trading solutions, this is your opportunity to make a real impact. Join us as we transform how institutions capture volatility and yield in the crypto markets.</p><p>Apply now and help redefine the future of decentralised capital efficiency.</p>

Quantitative Software Engineer

<h2 id="about-chainlabs">About Chainlabs</h2><p>Chainlabs is a data startup focused on enabling web3 analytics. We specialize in identifying blockchain address ownership and tracking addresses linked to illicit activities. Our work supports industry leaders like Nansen, Chainalysis, and Arkham in their wallet labeling efforts.</p><p>Our primary clients include anti-money laundering (AML) service providers, as well as law enforcement, traders, and academic researchers. Backed by Lunar Rails (200 employees), Chainlabs maintains the agility and independence of a startup while benefiting from financial stability and strong industry connections.</p><h2 id="position-overview">Position Overview</h2><p>We are seeking a <strong>Senior Back End Engineer</strong> to develop key data pipelines, including web scrapers, ETL workflows, and AI agents. Your work will enable us to extract critical data from clearnet and darknet platforms and power our blockchain intelligence solutions.</p><p>In this role, you’ll design high-performance systems that move data seamlessly into PostgreSQL and BigQuery environments. By tackling complex challenges in web scraping and data engineering, you’ll help us collect, organize, and analyze the web3 ecosystem at scale.</p><h2 id="key-responsibilities">Key Responsibilities</h2><h3 id="web-scraping">Web Scraping**:</h3><ul><li>Design and deploy web scrapers to extract data from complex websites like Etherscan, Arkham, ChainAbuse, etc.</li><li>Implement data collection mechanisms with support for IP rotation, CAPTCHA handling, and dynamic content rendering.</li><li>Help us build Crawlers and Scrapers to find hidden web3 wallets on the Darknet.</li></ul><h3 id="data-engineering">Data Engineering**:</h3><ul><li>Build and maintain ETL pipelines to ingest scraped data into PostgreSQL or Bigquery.</li><li>Classify the collected web3 wallets into predefined categories (e.g., Swap, Bridge, Scam, Ransomware) according to our taxonomy definitions.</li></ul><h3 id="api-maintenance">API Maintenance**:</h3><ul><li>Maintain and enhance Chainlabs API endpoints to provide seamless access to the data.</li><li>Utilize <strong>Python</strong> frameworks (e.g., Flask) to support and extend RESTful APIs.</li></ul><h3 id="data-analytics">Data Analytics**:</h3><ul><li>Use SQL to analyze on-chain data, ie, the behavior of collected wallets, their interaction with other entities, and other on-chain trends</li></ul><h2 id="requirements">Requirements</h2><ul><li>Proficiency in <strong>Python</strong> for data engineering, <strong>web scraping</strong>, <strong>API development</strong>; and databases like <strong>PostgreSQL</strong>.</li><li>Experience with frameworks such as <strong>Scrapy, Selenium</strong> and <strong>BeautifulSoup</strong>.</li><li>Understanding of advanced Web Scraping techniques, including IP rotation, proxy management, and CAPTCHA handling.</li><li>Familiarity with modern AI models, APIs, and SDKs (e.g. OpenAI, LLMs).</li><li>Hands-on experience with ETL orchestration tools like <strong>Apache Airflow</strong></li><li>Strong problem-solving and not afraid to work with a wide variety of data.</li><li>Ability to work independently and meet deadlines in a remote environment.</li><li>A passion for blockchain and web3 technologies. An interest in combatting financial cybercrime.</li><li>*Nice to Have: Familiarity with RESTful API development using_ <em><strong>Flask</strong></em> <em>framework.</em></li><li><em>Nice to Have: Strong experience with SQL and some exposure to Javascript.</em></li><li><em>Nice to Have: Experience with on-chain analytics</em></li></ul><h2 id="benefits">Benefits</h2><ul><li>Competitive salary.</li><li>Remote work environment with a flexible schedule.</li><li>A team that values data and AI; our founder is a data scientist.</li><li>A company culture that values transparency, speed, courage, and curiosity.</li><li>Opportunities for fast personal and professional growth.</li><li>Exposure to a global network of industry experts and partners.</li></ul>

Senior Backend Engineer (Web Scraping & Blockchain Analytics)

<p>QuickNode is looking to hire a Support Engineer II to join their team. This is a full-time position that can be done remotely anywhere in Portugal or Spain.</p><p>QuickNode - A crypto payments service that enables you to buy, hold, sell, swap, send and receive the major currencies.</p>

Support Engineer II

<h2 id="about-us">About us</h2><p><a class="font-medium hover:text-gray-900 transition-colors" href="https://twitter.com/Ambush" target="_blank" rel="noopener">Ambush</a> is an AI company developing AI research &amp; products that accelerate onchain adoption. We’re building Web3’s first autonomous AI agents to simplify wealth creation &amp; onchain safety.</p><p>We’re a lean &amp; hyper performance-oriented team; we are competitive, we like moving fast, and we run head-first towards seemingly impossible ideas. Our entire team is crypto-native &amp; we have a shared North Star of solving web3’s hardest challenges.</p><p>Our team is led by one of crypto’s prominent anons, <a class="font-medium hover:text-gray-900 transition-colors" href="https://twitter.com/AltcoinPsycho" target="_blank" rel="noopener">Psycho</a>.</p><h2 id="about-the-role">About the role:</h2><p>We’re hiring a Lead AI/ML Engineer with deep experience designing and deploying real-world AI systems, with a focus in NLP, GenAI, and evaluation systems.</p><p>You’ll work directly with our CTO to architect AI infrastructure that powers intelligent, responsive onchain products. Because we’re building crypto-native interfaces with AI at the core, the ideal candidate is fluent in the modern GenAI stack, has opinions on model evaluation, and isn’t afraid to go deep into both product UX and system performance.</p><p>No formal crypto work experience is required, although general interest in crypto is a must.</p><h2 id="requirements">Requirements:</h2><ul><li>4+ years of production AI/ML experience, with a focus on Python, HF Transformers, other NLP tools, and proper evaluations.</li><li>Strong understanding of modern GenAI ecosystems: frontier models, open models, vector databases, embeddings, RAG, prompt orchestration, etc.</li><li>Hands-on experience building evaluation frameworks and benchmarks for AI systems.</li><li>Track record of deploying and maintaining production systems — ideally including non-cloud (local or edge) inference.</li><li>You’re product-minded and comfortable navigating ambiguity across the AI stack.</li></ul><h2 id="responsibilities">Responsibilities</h2><ul><li>Architect and implement complex multi-model AI systems — including retrieval-augmented generation (RAG), local model inference, and hybrid pipelines.</li><li>Manage evaluations for open-ended AI tasks (e.g. classification, summarization, question-answering) with clear metrics and iterative feedback loops.</li><li>Contribute to product strategy and help define how AI fits into core user flows.</li><li>Own the full lifecycle: prototyping, productization, monitoring, and iteration.</li><li>Work closely with design and product teams to ship user-facing AI features.</li><li>Stay ahead of the curve on LLM advances, OSS tools, and model performance trends.</li></ul><h2 id="why-join-ambush">Why join Ambush?</h2><ul><li>Industry leading pay: strong base salary + uncapped profit share + equity</li><li>Lean &amp; high-impact team; we hate bureaucracy &amp; will not grow past ~10 people</li><li>One of the fastest growing AI companies in crypto</li><li>Proven leadership team with several acquisitions under their belt</li></ul><p><strong>Internal full-time hires only, no contractors or agencies</strong></p>

Lead AI/ML Engineer

<h2 id="about-us">About Us</h2><p>Chorus One is one of the leading operators of infrastructure for Proof-of-Stake networks and decentralized protocols. Tens of thousands of retail customers and institutions are staking billions in assets through our infrastructure helping to secure protocols and earn rewards. Our mission is to increase freedom and speed of innovation through decentralized technologies.</p><p>We are a diverse team of 75+ people distributed all over the globe. We value radical transparency, striving for excellence and improvement while treating each other with kindness and generosity. If this sounds like you, we’d love to hear from you.</p><h2 id="position-overview">Position Overview</h2><p>As a senior software engineer, you will join our rewards data team to assist in building and maintaining user-facing and internal applications to support rewards reporting and financial performance monitoring. At Chorus One we take the upstream node software from projects like Ethereum, Solana, Cosmos, or Avalanche; compile it; run it on one of our servers; and then make sure it is reliable and secure, monitor it, and keep it up to date. The networks rewards us for that in their native token. Keeping track of those rewards over time is a hard problem, because ironically, blockchains typically don’t expose convenient APIs to extract this data in a useful format. This is why we build our own automation, and integrate with third-party data vendors. Your work will power internal reports and dashboards, as well as external customer reporting, and rewards data APIs.</p><h2 id="key-responsibilities">Key Responsibilities</h2><ul><li><strong>Design and develop new features</strong>. Discuss with internal stakeholders to clarify how our&nbsp;next feature should look, discuss with fellow engineers how it should be implemented,&nbsp;and then drive implementation to completion.</li><li><strong>Support and collaborate</strong>. Review and discuss engineering designs, review code, help&nbsp;fellow engineers, and work with other teams such as platforms engineering, customer success, business development, and our networks team, to get them the insights they need.</li><li><strong>Innovation and continuous improvement</strong>. Seek to simplify, optimize, and secure our&nbsp;staking services and systems.</li><li><strong>Take part in on-call rotation approximately 2 days per month.</strong>&nbsp;You will be responsible for building APIs used by external parties, which come with an uptime requirement.</li></ul><h2 id="job-requirements">Job requirements</h2><p>What we are looking for:</p><ul><li>4+ years experience as a Software Engineer.</li><li>Experience with operating and maintaining server-side software in production.</li><li>Experience with Python (most of our rewards data automation is written in Python)</li><li>Other backend software at Chorus One is written in a mix of Rust and Go, experience with these is an advantage.</li><li>Experience using SQL databases, preferably PostgreSQL.</li><li>Experience with implementing REST APIs.</li><li>Strong communication skills and ownership to drive new features independently.</li><li>Interest in blockchain technology, in particular distributed systems and consensus algorithms.</li><li>You are able to work in the following time zone: Switzerland ± 6 hours.</li></ul><h2 id="what-we-offer">What We Offer</h2><h3 id="growth-learning">🌱 Growth &amp; Learning</h3><p>We’re committed to your development! Benefit from an annual <strong>3,000 CHF learning budget</strong> that goes beyond just conferences—supporting your physical, emotional, and mental well-being too. Attend up to <strong>two conferences a year</strong> to dive deeper into the Web3 space and connect with the community. Plus, jumpstart your crypto journey with our <strong>$1,000 Crypto Starter Kit</strong> to explore and engage with cryptocurrencies hands-on.</p><h3 id="collaborative-culture">🤝 Collaborative Culture</h3><p>Collaboration is woven into our DNA. We thrive in <strong>multiplayer settings</strong>, ensuring every voice contributes to our mission. Connect across teams through our <strong>buddy programs, regular virtual coffee chats,</strong> and <strong>biannual retreats</strong>, which offer unparalleled opportunities to build stronger relationships while tackling some of the industry’s most exciting challenges.</p><h3 id="retreats-in-iconic-destinations">✈️ Retreats in Iconic Destinations</h3><p>Twice a year, we bring the entire team together for <strong>all-expenses-paid retreats</strong> in inspiring locations. Past retreats have taken us to <strong>Kenya, the USA, South Korea, Switzerland, Spain, Turkey, Thailand, Dubai and Japan.</strong> Our next stop? <strong>Budapest, Hungary!</strong> These retreats are designed to recharge, connect, and spark innovation.</p><h3 id="work-from-anywhere">🏡 Work From Anywhere</h3><p>Embrace <strong>remote flexibility</strong> that empowers you to work from anywhere in the world. Prefer a coworking space? We’ve got you covered with a <strong>500 CHF/month coworking budget</strong>. And for those growing their families, enjoy <strong>paid parental leave</strong> to ensure your personal and professional lives align seamlessly.</p><h3 id="radical-transparency">🗣️ Radical Transparency</h3><p>We practice <strong>radical candor</strong>, fostering an environment of open, honest feedback that helps us grow individually and as a team. Expect a culture where learning from each other is not just encouraged—it’s celebrated.</p><h3 id="compensation-equity">💸 Compensation &amp; Equity</h3><p>We offer a <strong>competitive fixed salary in your preferred local currency or stable coins</strong>, complemented by <strong>stock options</strong>, giving you a stake in the exciting future we’re building together.</p><h3 id="employment">💼 Employment</h3><p>We offer flexibility to suit your individual needs. With the ability to provide local employment in <strong>over 150 countries</strong>, you’ll have access to local benefits tailored to your region. Prefer contractor status instead? That’s an option too. During the offer, we work with you to determine the best arrangement, ensuring your experience aligns with your personal and professional preferences.</p><p>✨ Curious to see what life at Chorus One is really like? <strong>Check out</strong> these videos for a behind-the-scenes look:</p><ul><li><a class="font-medium hover:text-gray-900 transition-colors" href="https://www.youtube.com/watch?v=CYF3Uv7xiuc" target="_blank" rel="noopener">Culture at Chorus One</a></li></ul>