Junior Frontend Developer (React) – Hybrid, UI-Focused

Tussell; Greater London; Hybrid; GBP 40,000 - 50,000; Full time

Benefits offered by this job

Hybrid working

Annual salary reviews after 12 months

Office in Hoxton

Learning & development budget

Job summary

Tussell, a London-based data company, invites a junior front-end developer to help reimagine user interfaces for public procurement data. Work on UI layers of Rails and React apps, mentored by senior engineers, contributing from day one.

You’ll collaborate with product, design and engineering teams, build responsive interfaces with HTML/CSS/JS, and gain hands-on experience across the stack in a fast-growing environment.

Qualifications

• JavaScript fundamentals with modern JS ecosystems like Node and Yarn.
• Practical React experience (React 19, functional components and hooks).
• Familiarity with Ruby on Rails views/partials and debugging UI in browser dev tools.
• Clean, maintainable CSS using utility-first frameworks (Tailwind) and modern layout techniques.
• Experience unit testing JavaScript (Jest/RTL) and Git workflows.

Responsibilities

• Build and maintain front end code using JavaScript and React components within existing patterns.
• Wire up React components in Rails views/partials.
• Implement UI designs from mockups, Figma files, or requirements.
• Fix bugs and make incremental improvements to views and components.
• Write and maintain unit tests for JavaScript and webpage components.
• Collaborate with designers, product managers and engineers to turn requirements into UI.
• Participate in code reviews and Git workflows.
• Pair program and onboarding to develop under mentorship.

Skills

JavaScript fundamentals

React practitioner

Rails-literate

CSS/design oriented

Tested and collaborative

Ready to grow

React

Ruby on Rails

Tailwind CSS

Stimulus

Tools

React

Ruby on Rails

Tailwind CSS

Stimulus

Job description

Tussell, a London-based data company, invites a junior front-end developer to help reimagine user interfaces for public procurement data. Work on UI layers of Rails and React apps, mentored by senior engineers, contributing from day one.

You’ll collaborate with product, design and engineering teams, build responsive interfaces with HTML/CSS/JS, and gain hands-on experience across the stack in a fast-growing environment.