Technical Diagnostic
A focused review of affected routes, templates, deployment behaviour, crawl signals, CMS behaviour, performance bottlenecks, or code paths, followed by a prioritised fix plan the team can take into delivery.
This is for teams who still ship, but no longer trust how many hidden dependencies sit behind each change. The issue is usually not one component or one framework choice, but the way routing, data, CMS, deployment, SEO, and ownership now meet in production.
Senior diagnosis for existing React and Next.js estates where routing, CMS, deployment, SEO, data ownership, and delivery risk have become one platform problem.
Next.js platform consulting is useful when the team needs senior judgement before implementation accelerates in the wrong direction. I map the existing estate, identify which constraints are technical, organisational, or commercial, then help decide whether the next move is stabilisation, refactoring, migration, supplier review, or embedded delivery support. The answer is not automatically a rebuild, App Router migration, CMS replacement, or Vercel migration.
Decision makers usually come to me when a legacy Next.js front end is carrying too much release risk. The work protects delivery capacity, search visibility, and the technical confidence needed to change the platform without guesswork.
A focused review of affected routes, templates, deployment behaviour, crawl signals, CMS behaviour, performance bottlenecks, or code paths, followed by a prioritised fix plan the team can take into delivery.
Senior hands‑on support inside an existing team where architecture, implementation, review, and delivery judgement all matter, especially when the work cannot be handed over as isolated tickets.
Ongoing senior technical cover for architecture, roadmap, supplier review, delivery risk, hiring shape, and platform‑ownership decisions when the team is not ready to hire permanently.
Move a client‑rendered React SPA to Next.js when search‑critical routes need stable rendered HTML, metadata, links, and performance earlier than the current shell can provide.
Move beyond a Shopify theme only when the boundary is clear between what Shopify keeps owning and what Next.js should take over for the storefront.
Move a mature Next.js codebase to the App Router without turning caching, rendering, middleware, or rollout changes into launch risk.
Stabilise a Next.js production incident after deploy when the app works locally but the live site is now broken, inconsistent, or only failing against production conditions.
Stabilise failing Next.js builds on Vercel by reducing noisy log output to the route, dependency, config value, or content path that blocks deployment.
Plan a move to Next.js by identifying which routes, redirects, rendered output, metadata, CMS workflows, analytics, performance paths, and release controls must survive the cutover.
Debug live Next.js estates where slow routes, stale data, hydration faults, scripts, cache behaviour, or deployment history are now affecting real users and release confidence.
Define Next.js platform boundaries when domains, routes, tenants, brands, content ownership, data ownership, deployment models, or team responsibilities are making change unsafe.
Debug Vercel deployment paths where local, preview, build, and production behaviour diverge around logs, environment variables, middleware, cache, runtime behaviour, or failing routes.

Next.js vs. Remix compared properly, across routing, data loading, mutations, caching, and the architectural trade‑offs teams actually feel in production.

React developer vs. Next.js developer explained through production concerns: rendering, routing, caching, SEO, deployment, CMS data, and debugging.

A Pages Router to App Router migration checklist for Next.js teams, covering routing, data fetching, caching, metadata, server components, and rollout.

A practical way to debug failing Next.js builds on Vercel, from first useful error lines and environment drift to route generation and memory pressure.

A Next.js production triage checklist for broken deploys, covering rollback decisions, logs, environment drift, routes, auth, CMS data, and cache.

Why production data breaks Next.js sites, including CMS fields, slugs, images, relations, dates, rich text, generated routes, and validation gaps.