Jim Harris
Senior Front-End Developer
ReactTypeScriptNext.jsJavaScriptTailwindREST APIsSenior front-end developer specialising in React, with practical full-stack experience. From greenfield projects to modernising existing codebases, I help teams build and ship production web applications with a strong focus on custom-built UI and thoughtful UX.
I’ve worked with digital agencies and product teams since 2006, supporting everything from lean startups to global organisations, with nearly a decade of production React experience. I focus on clean architecture, maintainable systems, and reliable delivery in real-world environments.
Selected Projects
EfL QuestionBoard
Evidence for Learning (2024-2026)
React/Next.js web application for Evidence for Learning, market leaders in educational software for SEND learners, supporting their inquiry-based approach to SEND education.
React Next.js TypeScript Tailwind AG Grid HeroUI REST APIs Laravel/PHP
- Designed and built a custom visual query interface for searching students' performance records inspired by visual programming languages
- Implemented a timeline-based filtering and comparison UI, drawing on UX patterns from DAWs and video editing packages
- Innovate UK–funded greenfield project, meeting and exceeding key milestones and requirements throughout the project
- From prototype to product in under 12 months
- Used by 1,200+ schools and colleges and 75,000+ practitioners
Dua Lipa social media dashboard
Warner Music Group (2024)
A responsive social media dashboard for Dua Lipa’s UK team at Warner Music, enabling them to track the performance of their TikTok campaign creators.
React Next.js TypeScript Tailwind REST APIs
- Added real-time insights through data visualisation and charts
- Led discovery of requirements and user journeys to align the dashboard with Warner’s strategic goals
- Delivered a key internal win, enabling Warner UK to compete favourably with an alternative tool from Warner US
Jim is a safe pair of hands - strong on application planning and sharp-end coding. He integrated quickly, delivered under pressure, and made a real impact on our React dashboard project. Josh Saunders, Warner Music Group
HTML5 educational games
Cambridge University Press with Alternative View Studios (2021 - 2023)
Suite of editable HTML5 educational games for Cambridge University Press, deployed on their global learning platform.
React JavaScript PixiJS Laravel/PHP
- Architected and developed five educational game templates for Cambridge University Press, doubling the number of games available to their course designers
- Reached millions of users in over 100 countries via their digital learning platform, Cambridge One
- Collaborated with existing team to integrate new games with existing codebase, then led refactoring from class-based to functional React components
- Influenced game design, maintained database, co-managed deployment and testing
Jim threw himself into the project and integrated well into the wider team. I hope to work with him again when the right project comes along. Neil Thompson, AVS
Cambridge University Press portfolio at Alternative View Studios
Everyone’s Library public installation
Brighton and Hove Libraries
An Arts Council–funded public installation promoting Brighton and Hove Libraries' Everyone's Library campaign.
React Google Firebase
- Led the technical development of a successful public installation for Brighton and Hove Libraries' Everyone's Library campaign, delivering on time and within budget
- Mentored client with technical skills through project, improving original specification to guarantee an accessible, secure, and compelling experience for visitors
- Achieved significant community impact and reach, with the installation attracting 2,000 contributions at Brighton's central Jubilee Library and other locations throughout 2024
Jim delivered our Arts Council–funded library installation on time and to brief, translating a complex idea into a working public-facing React application. I’d happily work with him again.. Jake Smith, Digital Manager, Brighton & Hove City Council
With design partners Boyle & Perks