Summary
A growing technology organization is looking for a frontend engineer to build a data-intensive B2B platform. You will work with React and TypeScript on a modern greenfield codebase, developing complex interfaces and visualizations while improving performance, architecture, testing, and delivery practices.
Highlights
Strong salary, hybrid working, a modern greenfield technology stack, significant technical autonomy, and the opportunity to build high-impact data-intensive experiences in a small ambitious team.
Description
Frontend Developer
2 days in London office
£62,500 to £77,500
About the role
A growing climate tech company is hiring a Frontend Engineer to help build a data-heavy B2B platform used by policymakers, planners, and investors to model energy systems.
You'll work on a modern, greenfield React/TypeScript codebase, with real autonomy in a small, ambitious team.
Responsibilities
Deliver frontend features end-to-end, working closely with product and design to build high-quality user experiences using React and TypeScriptImplement complex UI patterns including data tables, filtering workflows, virtualised lists, and interactive data visualisationsApply performance optimisation techniques for large datasets and visualisation-heavy workloads, and help evolve the frontend architecture with reusable, composable componentsMaintain high code quality through testing, code review, and CI/CD practicesCollaborate with backend engineers and contribute technical input during agile planning, refinement, and delivery
Requirements
3+ years building production frontend applications with TypeScript and modern ReactProven experience building complex, data-heavy UIs — tables, filtering, forms, and interactive visualisationsSolid understanding of frontend performance principles: profiling, reducing unnecessary renders, and working efficiently with large datasetsExperience with client-side data management patterns (e.g.
TanStack Query) and testingExperience building accessible, reusable UI components with modern tooling such as Tailwind
