Senior Fullstack Engineer

Seeking a Senior Fullstack Engineer to work at the intersection of frontend and backend development. The role involves building a React-based trading UI and TypeScript backend services for high-performance trading platforms. The ideal candidate has 6+ years of experience and a passion for trading and engineering excellence.

• 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 (preferred)
• Experience with Rust or C++ for building high-scalability web services (preferred)
• Familiarity with the Web3 frontend stack (e.g., ethers.js, viem, client-side wallet integrations) (preferred)
• Knowledge of event-driven and messaging architectures (Kafka, Google Pub/Sub, or similar) (preferred)
• Experience with observability tools such as Datadog, Prometheus, or Winston logging (preferred)

• 100% Remote: Fully remote work arrangement with global flexibility
• Competitive Compensation: Industry-aligned salary package reflecting senior-level experience
• Professional Growth: Opportunity to solve complex technical challenges at the cutting edge of finance and web technology