Senior Frontend Engineer Remote (UK-based) | Full-Time About Us 2026 OTC Trading Platform of the Year ( ). Our network handles over $50 billion in daily trading volumes across FX, Equities, and Cryptocurrency, connecting 40+ of the world's leading liquidity providers. The Role What You'll Work On Type Script and Rust — from trader-facing interfaces to the application services behind them What We Need Technical: Type Script / Java Script (ES6+) (5+ years) React and reactive state management (RX, Mob X, or similar) Rust — it's part of our stack and not optional at this level. If your Rust is still developing, a strong track record of picking up new languages to depth quickly is essential Python for scripting, automation, and tooling is a bonus How you work: You ship. You're delivery-focused — you iterate, you improve, you get things into production You run with things. Give you an ambiguous, complex problem and you drive it to done without being managed through it. Senior here means trusted, not just experienced You have range. You're not just strong in the familiar parts of the stack — you pick up the unfamiliar and hold your own on the hardest work You own it. When you build something, you take responsibility for its behaviour in production. You respond to incidents (15-minute acknowledgement SLA during working hours), investigate issues, and close the loop You raise the bar. You review peers' work thoughtfully, mentor the engineers around you through the craft, and set a standard others calibrate to You write things down. Documentation is not an afterthought — it's how we scale knowledge across a distributed team. If it's not written down, it doesn't exist You communicate. We're a distributed team across multiple time zones. Clear, proactive communication — especially when things go wrong — is essential You embrace AI tooling. We use AI tools (Claude, Gemini) to amplify our engineering capability — from code review and debugging to incident investigation and documentation. You don't need to be an expert, but you should be curious and willing to learn What You Get Real problems — trading systems where performance is measured in microseconds, not user clicks An excellent team — senior engineers who care about craft, collaborate openly, and hold each other to high standards Ownership — small teams, clear accountability, direct impact on the platform and our clients Competitive package — up to 30 days leave +
Remote senior frontend engineer in Newtown employer: Reactive Markets
Reactive Markets is an exceptional employer that fosters a dynamic work culture, prioritising innovation and collaboration. With a strong emphasis on employee growth, you will have access to continuous learning opportunities while working closely with a senior engineering team in a hybrid London setting. The company's commitment to outstanding client service and automation ensures that you will be part of a forward-thinking environment that values your contributions.
