Senior Backend Engineer (Platform)

Our client is a leading infrastructure provider of virtual asset solutions, delivering a comprehensive suite of services including custody, wallets, staking, trading, financing, and settlement, all from regulated cold storage. Since its founding in 2013, our client has focused on enabling their clients within the crypto space. With a global presence and multiple Trust companies, our client serves thousands of institutions – including many top-tier brands, exchanges, and platforms – as well as millions of retail investors globally. Acting as a critical operational backbone for the blockchain economy, our client handles a substantial volume of Bitcoin network transactions and stands as the world's largest independent cryptocurrency custodian and staking provider. Responsibilities: Become the in-house expert on the developer experience with Node.js and TypeScript, translating their needs into cutting-edge solutions and shaping our best practices Architect, construct, and fine-tune the platform's backbone – scalable services and Node.js-powered tools that empower our high-throughput custody, wallet, and financial service offerings Craft and integrate the essential libraries, frameworks, and intuitive workflows that streamline software development Pioneer tools and processes that accelerate our engineering velocity, from seamless deployment pipelines to robust testing suites and elegant service abstractions Champion a culture of continuous improvement in operational excellence, proactively investing in the reliability and resilience of our systems through learning and innovation Partner across engineering disciplines to forge and uphold unified standards for API design, platform performance, and the overarching system blueprint Responsibilities: Expert in Node.js, npm, and TypeScript for reliable backend systems Strong experience designing and implementing RESTful APIs and their lifecycle Strong testing and debugging abilities Proficient with Git, CI/CD, and agile practices Excellent problem-solving, algorithm design, and complexity analysis skills Bachelor’s degree in CS, Math, or related technical field

Location: Sonoma, CA, US

Posted Date: 4/30/2025