Next.js Engineering

Fix Next.js App Router Issues — Without Re-launching Your Site

Ship-ready Next.js, App Router or Pages

Senior engineers · IST + EST overlapNDA on day 124-hour reply

Tell us what you need fixed

Reply in 24 hours · NDA on day 1 · No spam.

The problem

What you're seeing

Pages, layouts, parallel routes, or intercepting routes are not behaving as expected after the migration to App Router.

How we fix it

Our approach

We map the route tree, identify boundary-crossing data leaks, and refactor to match the App Router model. Streaming, suspense, and ISR work the way they should.

Concrete deliverables, no fluff

Every engagement ends with measurable, documented outcomes — no black-box agency reports.

  • Root cause analysis with reproduction

  • Targeted fix with no scope creep

  • Verification on staging + production parity check

  • Runbook for future incidents

Industry-standard stack, no proprietary lock-in

Next.js 14RSCVercelEdge runtime