Frontend Engineer — AI-Powered Energy Data Platform

United States Digital Space LLC; Greater London; Hybrid; GBP 65,000 - 110,000; Full time

Job summary

United States Digital Space LLC is hiring frontend engineers to join product teams (Terminal, Data, Ko, or Modelling) in a hybrid London-area setup. You’ll contribute to a shared TypeScript/React/Next.js codebase in a monorepo, build on a design system, and ship features with AI-assisted development.

Ideal candidates combine frontend depth with curiosity about backend basics, performance, and data-driven UIs, and thrive in a fast-moving environment with autonomy.

Qualifications

• 3+ years of professional frontend development experience, with excellent TypeScript, React, and Next.js.

Responsibilities

• Shape frontend monorepo direction to scale with team and product.
• Design and build components in internal UI library (MUI) for the team to reuse.
• Develop high-performance, low-latency interfaces that handle live market data.
• Write well-tested code (Jest, Cypress, or Playwright) and participate in code reviews.
• Balance shipping new features with maintenance, performance, and production issues.
• Collaborate with design and domain experts to bridge design and engineering.
• Tackle backend/infrastructure tasks as needed behind your features.

Skills

TypeScript

React

Next.js

MUI

Jest

Cypress

Playwright

Git

Docker

CI/CD

Monorepo

Turborepo

Yarn Workspaces

Cursor

Claude Code

GitHub Copilot

Tools

MUI

Jest

Cypress

Playwright

Git

Docker

CI/CD workflows

Turborepo

Yarn Workspaces

Monorepo tooling

Cursor

Claude Code

GitHub Copilot

Job description

United States Digital Space LLC is hiring frontend engineers to join product teams (Terminal, Data, Ko, or Modelling) in a hybrid London-area setup. You’ll contribute to a shared TypeScript/React/Next.js codebase in a monorepo, build on a design system, and ship features with AI-assisted development.

Ideal candidates combine frontend depth with curiosity about backend basics, performance, and data-driven UIs, and thrive in a fast-moving environment with autonomy.