Senior Software Engineer, Fullstack (Developer - Platform API)

What you’ll be doing:

• Design, develop, and maintain scalable, secure, and high-performance backend systems for the Platform APIs using Go and Javascript
• Define and maintain clean and conformant HTTP REST API definitions using OpenAPI specifications
• Design, develop, and maintain ergonomic, open-source SDKs to interact with the Platform APIs using Ruby, Typescript, Go, Python, and Java 
• Author, publish, and maintain clear and concise documentation, including quickstart and how-to guides, to increase adoption of the Platform APIs and SDKs
• Develop secure and scalable key management systems, packaged as Docker images, to enable crypto wallet functionality across a range of custodial configurations (e.g. self-custodial MPC)
• Work closely with many different teams at Coinbase to externalize their backend services through the Platform APIs, ensuring consistency of concepts, style, and design
• Interface directly with customers to collect their feedback and iteratively improve the Platform APIs and SDKs
• Build compelling sample applications end-to-end using the Platform APIs and SDKs to demonstrate their value and pressure-test the developer experience
• Troubleshoot and debug complex fullstack issues, ensuring stability, reliability, and security
• Participate in code reviews and provide constructive feedback to maintain high code quality standards

What we look for in you:

• 6+ years of experience in both backend and frontend software development
• Mastery of Go and JavaScript; experience with Ruby, TypeScript, Python, and Java is a plus
• Excellent verbal and written communication skills, with an eye for detail and a passion for clear, comprehensive developer documentation
• Strong understanding of crypto wallets, including key management, cryptography, and blockchain protocols (e.g. EVM)
• Proven track record of designing, developing, and shipping high-quality, ergonomic client-side libraries and SDKs
• Strong understanding of distributed systems, microservices architecture, and event-driven architectures
• Experience with databases (PostgreSQL, MySQL, MongoDB) and caching systems (Redis, Memcached)
• Solid knowledge of RESTful API design principles and experience with API development and integration
• Familiarity with AWS and containerization technologies like Kubernetes
• Understanding of security best practices and experience with implementing secure coding practices for financial systems