Senior Fullstack Engineer
Senior Fullstack Engineer owns end-to-end features from frontend interfaces to backend infrastructure, shipping production systems with high uptime. Requires 5+ years experience, TypeScript/Node.js/React proficiency, SQL, and strong product instincts for fast iteration in a remote startup environment.
About the job
Responsibilities
- Take end-to-end ownership of features and products across the stack, from Agora interfaces to reliable backend infrastructure.
- Work closely with product, design, operations, finance, external partners, and customers to gather requirements, prototype quickly, and ship with confidence.
- Own from first prototype through launch, iteration, and beyond.
Basic Qualifications
- 5+ years of fullstack development experience, with 3+ years in TypeScript/Node.js and a modern frontend framework (React preferred).
- Fluency with relational databases and SQL.
- Proven ability to ship production systems, frontend and backend, with high uptime and minimal maintenance burden.
- Strong product instincts and an eye for good design; work from Figma files and push back when needed.
- Comfortable working directly with external partners and customers on requirements gathering, integration, and iterative feature development.
- MVP mindset: scope milestones, ship, learn, and iterate fast.
- Strong commitment to clean code principles and automated testing.
- Deep understanding of API design, versioning, documentation, and modern authentication patterns.
- Excellent communication skills and experience collaborating across product, design, and operations in remote, asynchronous environments.
Preferred Qualifications
- Experience in fast-paced, high-growth startup environments where you've worn many hats.
- Track record of prototyping and launching customer-facing products, not just internal tools.
- Familiarity with performance profiling, latency reduction, and service-level adherence.
- Background in designing and operating event-driven architectures.
- Expertise in Docker, Kubernetes, Prometheus, and Grafana.
- Passion for building tools that improve how people work with money.
- Hands-on experience building in crypto, including onchain libraries and services, and integrating with blockchain infrastructure.
- Experience integrating or interacting with blockchain node software (e.g., Geth, Solana validators).
Skills
TypeScript, Node.js, React, SQL, Docker, Kubernetes, Prometheus, Grafana, REST APIs, Crypto, Blockchain
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