Senior Fullstack Engineer

Posted 1mo ago

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Build and maintain the React-based trading user interface
Implement dynamic, interactive interfaces for real-time data, including live order book updates, price feeds, and trade executions via WebSockets
Own component architecture, state management, and responsive design
Optimize rendering, minimize load times, and ensure smooth, low-latency interactions under heavy data loads
Collaborate closely with product and design teams to translate complex requirements into intuitive user interfaces
Design and maintain TypeScript services, including REST APIs, WebSocket servers, and background services
Design and deliver event-driven pipelines that ingest and process pricing and account data
Own REST and WebSocket API contracts (OpenAPI / AsyncAPI specs), ensure smooth data flow between frontend and backend, and maintain API documentation
Interact with on-chain data, index blockchain events, and bridge smart contracts with off-chain services
Develop and maintain comprehensive unit, integration, and end-to-end tests across frontend and backend systems
Uphold continuous integration (CI) quality gates and rigorous code review standards
Work closely with cross-functional teams, including product, design, and quantitative specialists

6+ years of professional experience in fullstack software engineering
Deep expertise in TypeScript across both frontend and backend development
Strong experience with React and modern state management patterns (hooks, context, or equivalent)
Experience building and consuming REST APIs and WebSocket real-time data protocols
Proficiency with Node.js or Bun server-side runtimes
Experience with relational databases (PostgreSQL) and ORMs (Prisma or equivalent)
Familiarity with Redis or similar caching and pub/sub systems
Commitment to writing clean, maintainable code, backed by solid experience in unit, integration, and end-to-end testing methodologies
Clear and effective communication skills suitable for a fully remote, distributed, cross-functional team environment

8+ years of fullstack experience, ideally within fintech, trading platforms, or real-time data applications
Experience with Rust or C++ for building high-scalability web services
Familiarity with the Web3 frontend stack (e.g., ethers.js, viem, client-side wallet integrations)
Knowledge of event-driven and messaging architectures (Kafka, Google Pub/Sub, or similar)
Experience with observability tools such as Datadog, Prometheus, or Winston logging

Skills