Lee Williams.
NextJS Developer
Practical engineering applied to modern web applications — I build modern web systems and digital products for businesses and startups.
Birmingham, UK
About Me
Engineered Thinking. Modern Applications.
I build modern web applications and digital products for businesses and startups. Using technologies like Next.js and modern full-stack tooling, I design and develop fast, reliable systems that are built to scale and easy to maintain.
My background is in hands-on engineering and problem solving, where systems had to work safely and reliably in the real world. That experience shaped how I approach software development — structured, practical, and focused on delivering solutions that genuinely work for the businesses using them.
I focus on clarity, performance, and maintainability, building web applications, platforms, and digital tools that clients can rely on long after launch.
Full-Stack Development
Modern web application development using Next.js and scalable backend architecture, built for production environments.
Component & UI Architecture
Clean, reusable component systems with structured file organisation and long-term maintainability in mind.
Performance & Optimisation
Improving load times, bundle size, and application responsiveness through structured engineering decisions.
Agency Overflow Partner
Taking responsibility for clearly defined projects and delivering them with minimal oversight and structured communication.
Codebase Refinement
Auditing and improving existing applications for structure, clarity, and long-term maintainability.
What I Focus On
My Core Systems
I specialise in two distinct types of projects for agencies — full-stack applications and high-performance marketing sites. I also take many of those builds through to production SaaS launches for real customers. Each context needs a different approach, tooling, and priorities.
Full-Stack Projects
End-to-end application development
Structured Engineering
Clean architecture, maintainable code, and production-ready patterns from day one.
Full-Stack Capability
Frontend, backend, database design, authentication, and deployment — handled end-to-end.
Testing & Quality
Proper testing workflows, error handling, and validation built into the development process.
Agency-Ready Delivery
Clear documentation, structured handoff, and minimal oversight required during development.
Content & Marketing Sites
Speed-first, SEO-optimized delivery
Lighthouse Performance
Consistently hitting 95+ scores across performance, accessibility, and SEO metrics.
Fast Load Times
Optimized assets, minimal JavaScript, and edge-ready architecture for instant page loads.
SEO Foundation
Structured data, meta tags, sitemaps, and crawlability built in from the start.
Content-First Workflow
Clean CMS integration, markdown support, and editor-friendly content management.
SaaS & product builds
End-to-end delivery for software people pay to use
Product-shaped engineering
Data models, permissions, and workflows that match how the business actually runs — not a UI bolted onto a spreadsheet.
Auth, access, and trust
Secure sign-in, role-aware views, and server-side validation so customers and staff only see what they should.
Monetisation-ready
Subscription and payment flows wired with clear upgrade paths, webhooks, and reconciliation-friendly patterns.
Built for real traffic
Performance budgets, observability hooks, and deploy pipelines aimed at uptime under genuine daily use.
My Core Tools
Reliable, production-tested tooling
Supabase
Database
Tailwind CSS
Styling
Stripe
Payments
GitHub
Workflow
Who I Am Outside of Code
When I'm not building applications, I'm usually working on small living environments. I love nature and interacting with mini ecosystems. — Failing that you will find me in the workshop creating a frankly ridiculous amount of sawdust.
Motorcycle Travel
Exploring the world on two wheels. I love discovering new places and returning home richer.
Mini Environments
Terrariums and small ecosystems. So much joy i get in interacting with the natural world.
Timber Craft
I like building real things with my hands. Woodworking, carpentry, and building my own furniture.
Miniature Painting
Patience, detail work, and finishing touches. I enjoy the 3d printing and assembly of characters.
Common Questions
Frequently Asked Questions
I primarily collaborate with agencies and product teams. I do also take on direct client work, helping develop their ideas into a robust application.
I prefer clearly defined outcomes and constraints before development begins. Once scope is agreed and design is provided, I focus on structured delivery, clean architecture, and slotting into existing workflows with minimal disruption.
My core stack centres around Next.js and supabase as a backend. I focus on solid architecture, maintainable codebases, and production-ready builds rather than chasing trends.
Both. Im available for defined short-term builds as well as longer-term collaboration where structured engineering support is required.
Content and marketing sites are always fun. I enjoy the client handover and seeing the project come to life. A strong marketplace or saas app is always fun too.
Let's work together
Taking on new projects — reach out and let's build something cool.
Get in touch