Senior Full-Stack Engineer Trading Platform (TypeScript / Node.js / React)
Location: Waterloo, London (Hybrid)
Overview
Our client, a large enterprise, is seeking a Senior Full-Stack Engineer to join an established trading platform programme. This production-critical system is long-lived, actively evolving, and places strong emphasis on performance, reliability, and maintainability. You will join a highly experienced team of senior engineers and QA developers, taking full ownership of features from design through to production, while collaborating directly with the client.
Key Responsibilities
* Design, build, and maintain features across the full stack of a high-performance trading platform.
* Work primarily with:
o TypeScript (Node.js & React)
o Monorepo tooling, GitHub, GitHub Actions
o Jest, Playwright
o Redis, MS SQL, WebSockets
o Docker, Kubernetes
o Observability tools (Grafana, Prometheus, SonarQube)
* Take end-to-end ownership of features from design to production.
* Collaborate closely with platform and DevOps engineers on build pipelines, observability, and operational concerns.
* Communicate directly with clients to clarify requirements and propose solutions.
* Contribute to and improve automated testing practices.
* Participate in peer code reviews and maintain high engineering standards.
* Leverage LLM/AI-enabled development tools as part of day-to-day development.
Desirable
* Experience with functional programming (OCaml, Haskell).
* Prior experience in trading, finance, or real-time systems.
* Solid understanding of DevOps and operational concerns (logging, metrics, automation).
* London-based and willing to travel to company/client events.
Qualifications
* 8+ years of professional software development experience.
* 3+ years hands‑on experience with TypeScript, Node.js, and React.
* Strong experience building and maintaining production systems.
* Comfortable working in a senior, autonomous engineering team.
* Strong communication skills and fluency in English.
* Hybrid working in Waterloo, London.
Why Is This a Great Opportunity
* 5 days/year dedicated to training.
* £1,000 annual training allowance (up to 50% usable for home workstation equipment).
* Company equipment and onboarding kit.
* In-person team events every 3 months.
* Annual bonus (company and personal performance dependent).
* Stock option plan.
* Birthday off.
* Generous employee referral programme.
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