Senior Fullstack Engineer (Frontend-focused)

What you will do

• Build real-time trading interfaces on top of streaming market data and develop internal Node.js services.
• Implement proposed solutions using TypeScript, React, RxJS, Node.js, gRPC, WebSocket, PixiJS, AG Grid, and Ant Design.
• Develop internal AI tooling, such as MCP server tools, LLM-powered CI agents, or internal skills for routine engineering workflows.
• Ensure quality and reliability of developed solutions using automated testing.
• Document implemented modules and technical decisions.
• Maintain and improve implemented solutions according to business needs and feedback.

Skills and experience

• 5+ years of professional full-stack development experience, with senior-level expertise in React and strict TypeScript, as well as solid hands-on experience with Node.js.
• Production experience with WebSocket and gRPC.
• Real-time and performance: experience with reactive data streams, frontend and backend optimization, memory management, and high-load grids/streams.
• Experience designing architecture for data storage, data delivery, and pagination.
• Practical experience building developer-facing LLM tools or automations, such as MCP servers/tools, LLM skills/subagents, LLM-powered CI workflows, or similar agent-based tooling.
• English: B2 or higher.

Nice to have

• Trading or fintech domain experience.
• Observability: Prometheus, Grafana, Loki.
• PixiJS/WebGL experience.
• Playwright.