CareerPlanSign in

Staff Frontend Engineer

London💼 Full-time🗓 2026-08-25 → 2026-09-25

Core

Shape frontend architecture and engineering direction across product teams while remaining hands-on with code to solve difficult product-system problems.

Role type

Staff Frontend Engineer (Platform & Architecture)

Builds

Shared libraries, platform capabilities, design-system foundations, developer tooling, and cross-team frontend systems.

Domain

Fintech / Mobile Trading Platform

Deliverable

production ML models | product features | infrastructure

Required skills

React, React Native, TypeScript, monorepo architecture, performance optimization, state management, migration strategy, system debugging, technical mentorship

Preferred skills

Nx, pnpm, TanStack Query, Zustand, Playwright, Detox, Jest

Technologies

TypeScript, React, React Native, Nx, pnpm, TanStack Query, Zustand, Playwright, Detox, Jest

Responsibilities

Set direction for frontend architecture across React and React Native; Own cross-team problems in platform capabilities and shared libraries; Lead decisions on boundaries, abstractions, state, and data flow; Diagnose systemic rendering and runtime problems; Remain hands-on with implementation and prototyping; Mentor senior engineers and raise review quality.

Seniority

Staff, high-leverage IC with organizational impact

Sourced via ashby · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.