Frontend React Developer - Energy AI Startup

Roc Search; Greater London; Hybrid; GBP 75,000 - 90,000; Full time

Job summary

Roc Search is seeking a Frontend Software Engineer in London, hybrid (office 1-2 days/week). You will work with React and TypeScript to build dashboards and data visualisations, owning features from start to finish with product, design and backend colleagues. The role offers a salary of £75,000–£90,000 depending on experience.

Join an edge AI startup environment focused on AI, data and connected systems, delivering intuitive user workflows and high-quality web apps.

Qualifications

• Proven experience with React and TypeScript in production environments.
• Experience with APIs, asynchronous data flows and managing application state.
• Strong understanding of frontend architecture and building reusable components.

Responsibilities

• Build dashboards and data visualisations using React and TypeScript.
• Develop intuitive, high-quality web applications with a focus on performance and accessibility.
• Collaborate with product, design and backend engineers to own features end-to-end.

Skills

React

TypeScript

APIs

Asynchronous data

Frontend architecture

Testing

Modern frontend tooling

Tools

Tailwind CSS

Playwright

Cypress

Vitest

Jest

Job description

Frontend Software Engineer – React & TypeScript

London (1-2 days p/w in office)

Edge AI Startup

Salary - £75,000-£90,000 (Depending on experience)

We’re working with a growing technology company developing software that combines AI, data and connected systems to solve complex real-world problems.

We’re looking for an experienced Frontend Software Engineer to join the team and help build intuitive, high-quality web applications.

The role

You’ll work primarily with React and TypeScript, building dashboards, data visualisations and user workflows that make complex information easy to understand and act on.

You’ll have significant ownership across the development lifecycle, working closely with product, design and backend engineers.

What you’ll bring

• Strong commercial experience with React and TypeScript
• Experience with APIs, asynchronous data and application state
• Strong understanding of frontend architecture and reusable components
• Experience building responsive, accessible and performant applications
• Good testing practices and experience with modern frontend tooling
• Ability to take ownership and work effectively in a fast-moving environment

Nice to have

• Data visualisation or dashboard experience
• Tailwind CSS or component libraries
• Playwright, Cypress, Vitest or Jest
• Cloud platforms and CI/CD
• AI/ML or data-driven products
• Experience in a start-up or scale-up environment
• Figma

High ownership and influence

Interesting technical challenges

Work on technology with real-world impact

Join a growing team at an exciting stage