Frontend Engineer, Pensions Team (React)

InvestEngine; Greater London; Remote; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Remote-first

Unlimited vacation

Mentorship and growth

Job summary

InvestEngine, a London-based fintech, seeks a Senior Frontend Engineer for its Pensions Team. You will own pension web journeys end-to-end, collaborate with Product, Design and Backend, and shape API contracts while driving frontend architecture in a large codebase.

You will build complex multi-step forms, implement tests, and release features behind flags. This role offers remote-first work and mentorship to the next frontend engineer, with a strong emphasis on ownership and innovation.

Qualifications

• 2+ years using React and TypeScript in large codebases.
• Experience with state managers like Effector or Redux.
• Strong REST API integration skills with error handling.
• Experience shaping API contracts with backend engineers.
• Experience building complex multi-step forms.
• Unit or component testing with Jest or RTL.
• Knowledge of web accessibility standards.
• Ownership and ability to drive features to production.
• Fluent English and Russian communication.

Responsibilities

• Build and maintain customer-facing pension journeys in React and TypeScript.
• Own features from refinement to production, shipping web in the same sprint as backend.
• Agree API contracts, states and error handling with backend engineers and designers.
• Build complex, multi-step forms for account opening, transfers and declarations.
• Write unit and component tests, and release safely behind feature flags.
• Monitor features in production and fix issues quickly.
• Work in a large, long-lived codebase and follow our frontend architecture.
• Onboard the next frontend engineer and mentor juniors.
• Collaborate with Product, Design, QA, Operations and the wider frontend group.

Skills

React

TypeScript

State management

REST API

Jest

Playwright

Accessibility

Frontend architecture

Ownership

English B2+/Russian

Tools

Redux

Effector

Playwright

Storybook

Claude Code

Codex

GrowthBook

Sentry

Job description

About InvestEngine

We'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 Role

We'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 Do

• Build and maintain customer-facing pension journeys in React and TypeScript
• Own features from refinement to production, shipping web in the same sprint as backend
• Agree API contracts , states and error handling with backend engineers and designers
• Build complex, multi-step forms for account opening, transfers and declarations
• Write unit and component tests, and release safely behind feature flags
• Monitor features in production and fix issues quickly
• Work in a large, long-lived codebase and follow our documented frontend architecture
• Use AI coding tools (Claude Code, Codex) in daily work - and review what they produce
• Set frontend review and testing practices in the team, and onboard our next frontend engineer
• Collaborate with Product, Design, QA, Operations and the wider frontend group

What We're Looking For

• Commercial experience with React and TypeScript as your main tools over the last 2+ years, in a large, long-lived codebase
• Production experience with a state manager beyond component state (Effector, Redux or similar)
• Solid REST API integration skills, including loading and error states
• Experience working closely with backend engineers - discussing and shaping API contracts , not just consuming them
• Experience building complex or multi-step forms in production
• Unit 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 architecture
• Strong ownership: you clarify unclear requirements before you start and see features through to production
• Clear communication with engineers and non-technical stakeholders English B2+ and fluent Russian

Nice to Have

• Hands-on backend experience - commercial or personal projects
• Experience building a Backend for Frontend (BFF) layer
• Experience planning frontend architecture and breaking work down for other engineers
• Experience with Effector Playwright or other end-to-end testing tools
• Feature flags and error monitoring (GrowthBook, Sentry or similar)
• React Native experience
• Experience in fintech or another regulated industry - not required, we'll get you up to speed

How We Work

We'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 Offer

• Impact from day one - own the web side of a business-critical pensions product
• Real ownership - shape how frontend works in the team from the start
• Growth - onboard and mentor the next frontend engineer joining the team
• Modern tooling - TypeScript, React, Effector, Jest, Playwright, Storybook, Claude Code and Codex
• Remote-first and flexible - work from anywhere, at your own pace
• Unlimited vacation - take time off when you need it, no fixed limits
• Supportive team - thoughtful, skilled colleagues who care about quality and results

Hiring Process

• Intro call with our Talent team
• Technical interview with the Frontend team (about 1 hour, case-based discussion, no live coding)
• Gamified cognitive assessment to understand how you think and problem-solve
• Final conversation with our CTO

Originally posted on Himalayas