Services

Web Platform Architecture, Technical Leadership, and Digital Transformation

Handson senior engineering and leadership for teams that need clear platform ownership, technical direction, or a practical route through migration and digital transformation, with particular expertise in Next.js and TypeScript.

Documentation and Technical Advisory

A close-up photograph over the shoulder of a person writing into a small notebook.

Technical Writing and Documentation

I write technical documentation and technical content when the work needs someone who understands both the implementation and the reader. That can mean architecture notes, migration decisions, handover material, runbooks, public technical explainers, or editorial collaboration where the engineering detail has to stand up.

Good documentation should reduce repeated explanation, improve onboarding, and make the next technical decision easier to defend outside the immediate delivery team.

A group of people sitting around a table with notebooks during a planning discussion.

Partnership and Advisory Support

I also work as a senior technical partner for founders, agencies, and product teams who need independent engineering judgement without turning every decision into a larger delivery engagement.

This is useful when practical implementation experience needs to pressuretest architecture, derisk a proposal, support a pitch, review a delivery plan, or help the technical direction hold together. If that becomes an ongoing leadership gap, fractional technical leadership is the stronger named service.

A close-up photograph of a person typing on a laptop keyboard.

Technical Content Partnerships

I occasionally collaborate with product and technology companies when the subject is genuinely relevant to my work and the content needs practical engineering judgement behind it. That might be a technical article, editorial review, product validation, or documentationled piece where implementation experience matters more than marketing copy.

That work remains editorially independent. I write in my own words, retain editorial control, prioritise technical accuracy, reader value, transparency, and disclosure, and do not publish supplied copy or accept unrelated thirdparty articles, commercial mentions, or SEOled requests.

Platform Quality and Ongoing Support

Two sets of hands around hand-drawn component diagrams and interface notes.

Accessibility and Usability Reviews

I still take on focused accessibility and usability review work when a team needs practical fixes rather than a complianceonly report. That usually means looking at templates, components, copy, forms, keyboard behaviour, and the real journeys people rely on.

This often sits alongside technical SEO and performance work, because inaccessible interfaces, weak semantics, and slow journeys tend to show up together.

An Apple MacBook on a desk displaying a code editor with several lines of code.

Codebase Audits and Optimisation

Codebase audits are useful when a product still works, but the team is paying too much for every change. I review structure, repeated patterns, avoidable complexity, rendering cost, and the places where release risk is being hidden inside everyday implementation choices.

The output is not a theoretical rewrite plan. It is a practical view of what to simplify, what to leave alone, and where optimisation would make the biggest difference to release confidence.

A wooden desk with laptops, mobile phones, coffee cups, and personal electronics.

Ongoing Support and Maintenance

Some work needs senior followthrough after the first fix has landed. I can stay close to a platform after a launch, migration, recovery project, or concentrated debugging engagement so the team is not left carrying unresolved edge cases alone.

That might mean release support, technical triage, implementation review, small improvements, or helping your team turn a oneoff fix into a maintainable operating pattern.

How This Usually Works

  1. Technical Diagnostic

    A focused review to establish what is happening, where the risk sits, and what should happen next, ending with a prioritised plan the team can take into delivery.

  2. Recovery Sprint

    A short, concentrated engagement to isolate a defined problem, stabilise the immediate situation, and move the first fixes into delivery.

  3. Embedded Delivery Support

    Senior handson support inside an existing team when architecture, implementation, review, and delivery decisions need to stay connected.

  4. Fractional Technical Leadership

    Ongoing senior technical direction when a team needs stronger leadership and platform ownership before a permanent hire makes sense.

Tell me about your project

Tell me what you're working on and where the platform or team needs senior technical support. I'll read it and suggest the next step.

Hosting and Production Support

A close-up photograph of network cables connected to the rear of a switch.

Hosting and Platform Support

Hosting and platform support focuses on the production details that determine whether a modern site can be released, debugged, and maintained safely, particularly across Vercel, Next.js, and headless CMS platforms.

I help resolve build and deployment failures, untangle environment and DNS issues, and make cache, revalidation, and observability behaviour easier to trust. The work often sits at the boundary between application code and production infrastructure.

Related Case Studies and Project Work

  1. Screenshot of the Virgin Atlantic & Holidays website; part of John Kavanagh's selected project work.

    A New Headless Platform for Virgin Atlantic & Holidays

    At Virgin Atlantic, the replatform improved a hightraffic travel estate whilst keeping release quality and frontend consistency visible.

    View case study
  2. Screenshot of the Boohoo Group website; part of John Kavanagh's selected project work.

    A New Multi‑Tenant E‑Commerce Platform for Boohoo

    At boohoo Group, the work covered React delivery across multiple ecommerce brands, including shared systems and brandspecific variation.

    View case study
  3. Screenshot of the Nando’s website; part of John Kavanagh's selected project work.

    A Complete Migration and Replatform for Nando’s

    On Nando’s, the migration connected Next.js, Vercel, structured data, restaurantpage SEO, and measurable search uplift in one release path.

    View case study