Senior Trading Platform & Integration Engineer

Senior Trading Platform & Integration EngineerLocation: Remote / Hybrid (Preferred overlap with core team)   We are building a modern electronic trading platform integrating with institutional broker technology, real-time market data, and secure trading infrastructure. We are looking for a Senior Trading Platform & Integration Engineer to join our engineering team. This role extends beyond a single integration project and will play a key part in evolving the Trade platform, enhancing trading capabilities, improving platform architecture, and delivering new features as the platform grows.

This is a specialist engineering role suited to someone with experience building or integrating financial, brokerage, or capital markets systems. Key Responsibilities Design, build and maintain core backend services supporting the Rebel Trade platform.
Lead secure integration of third-party trading, brokerage and authentication systems.
Review and harden externally developed code before production deployment.
Develop integrations with trading APIs, OMS and market data providers.
Build scalable real-time services.
Enhance authentication and identity management.
Improve scalability, observability and production readiness.
Collaborate across engineering teams.
Support production environments.
Promote engineering best practices. Required Technical Skills TypeScript, Node.js, REST APIs, Serverless, Event-driven architecture, Microservices.
PostgreSQL, Row-Level Security.
OAuth2, OIDC, PKCE, JWT, Token Exchange, SSO.
Brokerage APIs, Trading APIs, OMS/EMS, Market Data.
WebSockets, SignalR.
Docker, CI/CD, GitHub, Monitoring.
  Nice to Have Supabase (Auth, Row-Level Security, User Management), Redis, Kafka/RabbitMQ, Azure/AWS, FIX Protocol, Options Trading, Clearing Firms. What We're Looking For A senior engineer with experience delivering secure, scalable business-critical systems, comfortable making architectural decisions and reviewing third-party code.