Frontend Engineer, Pensions Team (React)

About InvestEngineWe’re a London-based fintech on a mission to make ETF investing simple and accessible. Over 150,000 clients have trusted us with over £3.5 billion in assets — and we’re just getting started.We’ve been featured by MoneyWeek, Finder and Forbes, and we’re growing fast with big ambitions.About the RoleWe’re looking for a Senior Frontend Engineer to join our Pensions Team as its first dedicated frontend engineer. The team looks after around 100,000 SIPP accounts and thousands of pension transfers every month.You’ll own our pensions web journeys end to end — from clarifying requirements with Product, Design and Backend to building, testing, releasing and checking how features behave in production. Your first big goal is the frontend scope of a pension administrator migration: new account-opening flows, updated legal documents and in-app changes for existing customers.The team is backend-heavy, so you’ll be the frontend voice in technical decisions: shaping API contracts with backend engineers, setting how frontend work is reviewed and tested in Pensions, and later onboarding a second frontend engineer.What You’ll DoBuild and maintain customer-facing pension journeys in React and TypeScriptOwn features from refinement to production, shipping web in the same sprint as backendAgree API contracts, states and error handling with backend engineers and designersBuild complex, multi-step forms for account opening, transfers and declarationsWrite unit and component tests, and release safely behind feature flagsMonitor features in production and fix issues quicklyWork in a large, long-lived codebase and follow our documented frontend architectureUse AI coding tools (Claude Code, Codex) in daily work — and review what they produceSet frontend review and testing practices in the team, and onboard our next frontend engineerCollaborate with Product, Design, QA, Operations and the wider frontend groupWhat We’re Looking ForCommercial experience with React and TypeScript as your main tools over the last 2+ years, in a large, long-lived codebaseProduction experience with a state manager beyond component state (Effector, Redux or similar)Solid REST API integration skills, including loading and error statesExperience working closely with backend engineers — discussing and shaping API contracts, not just consuming themExperience building complex or multi-step forms in productionUnit or component testing as part of your daily work (Jest, React Testing Library or similar)General understanding of web accessibility (semantic HTML, keyboard navigation, ARIA)Experience working within a documented frontend architectureStrong ownership: you clarify unclear requirements before you start and see features through to productionClear communication with engineers and non-technical stakeholdersEnglish B2+ and fluent RussianNice to HaveHands-on backend experience — commercial or personal projectsExperience building a Backend for Frontend (BFF) layerExperience planning frontend architecture and breaking work down for other engineersExperience with EffectorPlaywright or other end-to-end testing toolsFeature flags and error monitoring (GrowthBook, Sentry or similar)React Native experienceExperience in fintech or another regulated industry — not required, we’ll get you up to speedHow We WorkWe’re a lean, collaborative team where engineers have a real influence on product, architecture and engineering culture.We value ownership, curiosity and continuous improvement. We start from the customer problem rather than the ticket, and we pick the simplest solution that works.In Pensions, you’ll be the team’s frontend owner — the person who makes sure pension features reach customers on web at the same pace as the backend.What We OfferImpact from day one — own the web side of a business-critical pensions productReal ownership — shape how frontend works in the team from the startGrowth — onboard and mentor the next frontend engineer joining the teamModern tooling — TypeScript, React, Effector, Jest, Playwright, Storybook, Claude Code and CodexRemote-first and flexible — work from anywhere, at your own paceUnlimited vacation — take time off when you need it, no fixed limitsSupportive team — thoughtful, skilled colleagues who care about quality and resultsHiring ProcessIntro call with our Talent teamTechnical interview with the Frontend team (about 1 hour, case-based discussion, no live coding)Gamified cognitive assessment to understand how you think and problem-solveFinal conversation with our CTO