Services

Next.js Platform Architecture for Complex Multi‑Team Products

Start here when the technical risk sits in platform shape rather than one defect: shared brands, tenant boundaries, or App Router behaviour that has become too complex to operate safely.

Choose the right architecture problem when tenancy, shared systems, or App Router complexity are slowing teams down.

Common situations

  • Shared‑platform questions that cut across teams, brands, or product lines.
  • Architecture work around tenancy, brand overrides, and platform boundaries.
  • App Router complexity where caching, RSC boundaries, and mutations interact.

Choose the architecture question that is closest to the current platform shape.

Choose the closest scenario

Related consulting support

  1. Capability

    Next.js Platform Consulting

    Bring in senior Next.js architecture support when a legacy platform, older front end, or hard‑to‑maintain site needs migration planning, platform rescue, and clearer delivery direction.

  2. Capability

    Embedded Technical Leadership

    Bring in principal‑level engineering support when architecture, delivery quality, and technical judgement need strengthening inside the work, not just from the sidelines.

  3. Capability

    Headless Architecture Consulting

    Bring in headless CMS consulting when CMS architecture, SEO controls, preview trust, or revalidation decisions are about to lock in operational pain.

Related project experience

  1. Boohoo
    Group

    The migration of several individual Group brand e‑commerce websites onto a newly developed, unified, React‑based platform. Enabling shared functionality and customisable components.

    Screenshot of the Boohoo Group website; part of John Kavanagh's development portfolio.

  2. Condé Nast
    Style.com

    A fashion and technology‑led e‑commerce marketplace by Condé Nast. Built in Clojure (and ClojureScript), its key feature was tight integration with the wider Condé Nast publications.

    Screenshot of the Style.com website; part of John Kavanagh's development portfolio.

  3. Dataffirm

    A complex, real‑time Angular‑based web application leveraging machine learning on 'big data' and live market analytics to identify investment opportunities.

    Screenshot of the Dataffirm website; part of John Kavanagh's development portfolio.

  4. HSBC Corporate
    Banking

    Lead UI developer on a set of digital transformation projects at the world's local bank. Includes the ground‑up rebuild of their commercial banking application using Node.js and React.

    Screenshot of the HSBC Corporate Banking website; part of John Kavanagh's development portfolio.

  5. LEGO

    Senior developer producing an all‑new e‑commerce platform with React. Designed to handle high traffic volumes and support multi‑language and multiple currencies.

    Screenshot of the LEGO website; part of John Kavanagh's development portfolio.

  6. Macmillan Education

    A sophisticated, interactive, multilingual web components e‑learning platform built with Google Polymer and QTI.

    Screenshot of the Macmillan Education website; part of John Kavanagh's development portfolio.

  7. Nando’s

    Senior software engineer on the UK and Ireland replatform, migrating Nando’s customer‑facing websites from legacy Drupal to a unified headless platform built with Next.js and Storyblok, with a focus on performance, accessibility, and SEO.

    Screenshot of the Nando’s website; part of John Kavanagh's development portfolio.

  8. Virgin Atlantic
    & Holidays

    Lead engineer on this massive replatforming project, unifying twelve disparate applications under a new headless architecture with React and Next.js.

    Screenshot of the Virgin Atlantic & Holidays website; part of John Kavanagh's development portfolio.

  9. The World Economic
    Forum

    Senior JavaScript developer heavily involved in delivering a React‑based rebuild of the World Economic Forum online platforms, including leading the introduction of new user features.

    Screenshot of The World Economic Forum website; part of John Kavanagh's development portfolio.

Related technical articles

Send me the details

Send me the affected page or route, point me at the code if that helps, and tell me what you expected to happen versus what is happening now. If this connects to a Next.js migration, technical SEO drop, performance issue, launch, or platform move, include that context too. I'll come back with the clearest next step.

Send the details
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