Job Description

Job Title: Senior Front-End Engineer (React/PWA) - UK Security Cleared

Location: Remote-first (UK-based, within the UK required)

Type: Full-Time, Permanent

Start Date: ASAP

About Us

We're building a cutting-edge consignment tracking platform designed to bring transparency, efficiency, and trust to supply chain operations. Our application provides live map-based tracking, real-time journey updates, secure document access, and intelligent dashboard insights, all delivered through a browser-first, mobile-optimised interface. We are seeking an experienced Front-End Developer with strong backend integration experience, particularly with AWS services, to join our growing permanent team.

Your Role

You will lead the development of our web-based front end, collaborating closely with backend and DevOps teams. Your primary focus will be on delivering high-quality, responsive user interfaces, including interactive maps and visual dashboards, while ensuring seamless integration with cloud-based backend services.

You will:

Build and maintain a modern React-based Progressive Web App (PWA). Integrate real-time tracking via WebSockets and/or REST APIs. Develop and manage data visualisations using charting libraries (e.g., Recharts). Implement secure document viewing components. Ensure responsive, accessible UI/UX across desktop and mobile devices. Work with designers and stakeholders to apply user research and usability best practices. Collaborate on backend integration and cloud infrastructure using AWS services.

Our Stack

Frontend:

React, Tailwind CSS, React Router

Data & Charts:

Recharts, Chart.js

Maps:

Mapbox GL JS, Leaflet

State Mgmt:

React Context, Zustand

Real-Time Data:

WebSockets, REST APIs

Documents:

react-pdf, iframe embedding

Deployment:

Vercel, Netlify

Backend (AWS):

Lambda, API Gateway, DynamoDB, S3, Cognito

Required Skills & Experience

Current UK Security Clearance is essential for this role.

Must reside in the UK with the legal right to work. No visa sponsorship is available.

5+ years

professional experience in front-end development. Proven expertise with React, modern JavaScript/TypeScript, and PWAs. Demonstrable experience integrating with cloud-native backends, particularly AWS (API Gateway, Lambda, S3, Cognito, DynamoDB). Strong understanding of responsive UI design, accessibility, and mobile web best practices. Experience with interactive data visualisation and real-time updates. Familiarity with user-centred design, prototyping, and iterative development. Git/GitHub workflows and modern CI/CD exposure (e.g., GitHub Actions). Excellent communication and problem-solving skills in a collaborative environment.

Nice-to-Haves

Experience with middleware/backend engineering (e.g., Node.js, FastAPI). Familiarity or curiosity around blockchain / distributed ledger technology. Working knowledge of secure document access and audit trails. Exposure to infrastructure as code (e.g., Terraform or CDK).

Why Join Us?

Key role in a high-potential, product-led company. Real-world impact in supply chain and logistics technology. Remote-friendly, flexible working culture. Opportunity to scale with the team and influence the product roadmap. Learning & development support.

How to Apply

Your next career move starts here - be part of a company that values skill, experience, and long-term success! RaaS AI operates as both an Employment Agency and Employment Business, adheres to all relevant legislation, and offers services regardless of age, sex, disability or religious belief. Please submit your CV and GitHub/portfolio.

Job Type: Full-time

Pay: 45,000.00-65,945.00 per year

Benefits:

Company pension Free parking Work from home
Schedule:

Monday to Friday
Work Location: In person

Reference ID: Raas AI 8763