Senior Software Engineer - Mobile Backend

Toronto · 6+ years experience · Onsite · Posted Oct 9, 2026

At a glance

BitGo is looking for a Senior Software Engineer (Backend) to join the Mobile team and help build the first-time user experience for retail users.
This role requires being full-time onsite at the Toronto office to support collaborative team dynamics and innovative problem-solving.

Design and build scalable, well abstracted, and robust APIs, libraries, and services to empower our API-first platform
Own functionality and scalability features by taking responsibility from inception to deployment and customer integration
Expose and document functionality to the UI, third-party developers, and our internal and external tooling
Collaborate with cross-functional teams to define, design, and ship new features
Write clean, maintainable, and efficient code
Ensure the performance, quality, and responsiveness of applications
Identify and correct bottlenecks and fix bugs
Continuously discover, evaluate, and implement new technologies to maximize development efficiency
Participate in code reviews and contribute to a culture of continuous improvement
Work closely with product managers, designers, and other engineers to understand and refine product requirements

6+ years of proven experience of back-end and server-side development
Great at algorithm design, problem solving, and complexity analysis
Strong experience with of TypeScript, Node.js and Express
Strong experience with Node.js, TypeScript, PostgreSQL and MongoDB
Strong experience with RESTful API design
Experience with microservices and service-oriented architectures
Experience with unit and functional testing and debugging
Experience in Git/GitHub and branching methodologies, code review tools, CI tools, etc.
Bachelor’s degree in computer science, applied mathematics, or another technical discipline from a top university
Understanding of and strong interest in cryptocurrencies and blockchain

Experience developing consumer-facing crypto products
Proven experience building public-facing APIs in a production environment
Ability to work full-stack and familiarity with React
Experience working with clients and/or business partners
Familiarity with any of the following: digital wallets, clearing and settlement, lending, trading, accounting systems, etc

This role will require being full-time onsite at our Toronto office to support collaborative team dynamics and innovative problem-solving.