Senior Software Engineer - Platform Growth

BitGo is the leading infrastructure provider of digital asset solutions, delivering custody, wallets, staking, trading, financing, and settlement services from regulated cold storage. Since our founding in 2013, we have focused on enabling our clients to securely navigate the digital asset space. With a global presence and multiple Trust companies, BitGo serves thousands of institutions, including many of the industry's top brands, exchanges, and platforms, and millions of retail investors worldwide. As the operational backbone of the digital economy, BitGo handles a significant portion of Bitcoin network transactions and is the largest independent digital asset custodian, and staking provider, in the world. For more information, visit  www.bitgo.com . This role will require being full-time onsite at our San Francisco office to support collaborative team dynamics and innovative problem-solving. BitGo is the infrastructure backbone of the digital asset economy, trusted by the world's leading institutions to secure and move billions in crypto every day. We're looking for a Senior Software Engineer to join our Platform Growth team and help shape the future of custody, growth, and mobile products. If you want to work on systems that genuinely matter - where scale, security, and correctness aren't nice-to-haves but existential requirements, this is the role for you. You'll work on systems where the stakes are real, the engineering bar is high, and AI-first development isn't a buzzword - it's how we operate. BitGo moves fast, ships with discipline, and builds for the long term. Come help us deliver trust in digital assets. What You'll Do: Architect and build high-scale APIs, libraries, and services that power custody and growth products used by the world's most sophisticated crypto institutions Take full ownership of features from whiteboard to production, including customer integration and post-launch iteration Design and document developer-facing APIs that delight third-party builders and internal teams alike Ship with AI at your side. Leverage LLMs, AI coding agents, and intelligent tooling to dramatically accelerate design, implementation, and review cycles Partner with PMs, designers, and engineers across the stack to define and deliver experiences that raise the bar Write code you're proud of: clean, well-tested, and built to last Hunt down performance bottlenecks, squash bugs, and leave the codebase better than you found it Mentor peers through code reviews, architectural guidance, and a culture of continuous craft improvement Stay ahead of the curve. Evaluate and adopt emerging technologies (including new AI tooling) that make the team faster and the product better What You'll Bring: Required: 6+ years of backend/server-side engineering experience, with a track record of shipping production systems at scale Sharp instincts for algorithm design, problem decomposition, and complexity tradeoffs Fluency with AI-assisted development. You actively use tools like GitHub Copilot, Cursor, or Claude to accelerate your workflow, and you know when to trust them and when not to Experience prompting and integrating LLMs into development workflows: code generation, test writing, documentation, and debugging assistance Familiarity with AI agent frameworks or autonomous coding tools and how to supervise, evaluate, and course-correct their outputs Hands-on experience with PostgreSQL and MongoDB in production environments Deep expertise in RESTful API design and the principles behind great developer experience Practical experience with microservices and service-oriented architectures Solid testing discipline - unit, integration, and functional coverage as a first-class concern Strong Git/GitHub workflow hygiene: branching strategies, code review culture, CI/CD pipelines Ability to move fast, make decisions under ambiguity, and recalibrate quickly Bachelor's degree in Computer Science, Applied Mathematics, or a related technical field Genuine curiosity about and understanding of cryptocurrencies and blockchain technology Preferred: Experience building institutional crypto products (custody, wallets, trading infrastructure) Proven track record shipping and maintaining public-facing production APIs Strong command of Golang, Kotlin or TypeScript, Node.js, and Express Full-stack capability with React, comfortable owning a feature end-to-end Experience working directly with clients or business partners to shape requirements Familiarity with any of: digital wallets, KYB/onboarding flows, growth platforms, or mobile crypto UX Experience evaluating or fine-tuning AI models for domain-specific tasks Why Join BitGo? Disrupting an industry takes vision, innovation, passion, technical chops, drive to deliver, collaboration, and execution. Join a team of great people who strive for excellence and personify our corporate values of ownership, craftsmanship, and open communication. We are looking for new colleagues who bring innovative ways of thinking and problem solving, and who want risks to be part of the team that changes the world’s financial markets. Pay Transparency Notice: Depending upon your leveling and location, the compensation for this role averages between $180,000 - $220,000 USD base salary. Equity, an annual performance bonus and the benefits outlined below are also a part of this role's package.  Here are some of the benefits* of working at BitGo: Competitive base salary, bonus and stock options 100% company paid health insurance for employee, partner and dependents Up to 4% 401k company match Paid parental leave, Paid vacation Free commuter/parking pass; near BART  Free custom lunches, dinners and snacks  Computer equipment and workplace furniture to suit your needs Great colleagues and inspiring startup environment *Benefits may vary based on location  Cryptocurrencies are the most disruptive change