Paul Bertrand, developer

Paul Bertrand

Next.js developer

5.0 (225)

303 completed projects

Next.js developer in Amsterdam

Need a freelance Next.js developer in Amsterdam? I help teams fix urgent issues and ship faster without sacrificing stability, performance, or maintainability.

How I help Amsterdam businesses

You work directly with the developer doing implementation and technical decisions.

  • Build and improve modern Next.js applications.
  • Fix urgent production issues with practical scope.
  • Improve performance, rendering, and runtime stability.
  • Handle upgrades and architecture cleanup safely.

Common Next.js problems in Amsterdam

  • Slow pages and weak Core Web Vitals
  • Rendering bugs across server and client boundaries
  • Version upgrades blocked by architecture drift
  • Production incidents caused by brittle data flows

Next.js stacks I work with

  • App Router projects with server components and server actions
  • Hybrid rendering with SSR, SSG, and incremental updates
  • Marketing sites, product apps, and internal dashboards
  • Migrations from older Next.js versions to current architecture

Integrations and runtime areas I support

  • CMS and content API integrations
  • Authentication and session management flows
  • Stripe, analytics, and event tracking pipelines
  • Vercel-ready deployment and runtime optimization

How projects run

Share business context and technical constraints

You provide goals, current blockers, and system context so we can align technical decisions with product priorities.

Plan the safest high-impact path

I map concrete delivery steps with priorities, trade-offs, and quick wins before implementation starts.

Ship, validate, and iterate

I deliver production-ready changes, validate outcomes, and leave a maintainable base for future work.

About Paul

8 years of experience building reliable web systems for businesses.

I work as an independent developer with a practical focus on WordPress, WooCommerce, Laravel, and AI-powered workflows. You work directly with the developer doing the work, without agency layers or handoffs. I also help turn AI-generated prototypes into production-ready products that are secure, stable, and maintainable.

  • Direct communication, without layers of account management
  • Experience with business-critical websites, ecommerce, dashboards, and integrations
  • Practical support for new builds, existing systems, and AI-generated apps that need cleanup

FAQ for Amsterdam teams

Can you help with urgent Next.js production issues?

Yes. I handle incidents like runtime errors, broken data fetching, and deployment regressions with stabilization first and cleanup right after.

Do you build new App Router projects or improve existing ones?

Both. I support greenfield builds and existing codebases that need upgrades, performance work, or architecture cleanup.

Can you improve page performance and Core Web Vitals?

Yes. I focus on measurable wins in rendering, bundle behavior, and caching strategy based on real bottlenecks.

Can you migrate from Pages Router to App Router?

Yes. I plan migration in safe steps so you can keep shipping while reducing risk and preserving SEO-critical behavior.

Do you support API routes and backend integrations?

Yes. I implement and stabilize route handlers, external service integrations, and secure data flows around business needs.

How do you price Next.js work?

Urgent fixes are handled in focused scopes first. Larger delivery is split into prioritized phases with clear expectations.

Can you start quickly on an urgent Next.js issue?

Yes. With repository context and production symptoms, I can usually triage quickly and propose the first stabilization steps the same day.

Do you work as a freelance Next.js developer in Amsterdam?

Yes. You work directly with me as a freelance developer, without agency layers between planning and implementation.

Can you fix App Router server and client component errors?

Yes. I debug server/client boundaries, hydration issues, async data flow, server actions, and runtime errors that appear after App Router changes.

Can you fix Next.js caching, ISR, or stale data issues?

Yes. I review fetch caching, revalidation, route behavior, CDN caching, and deployment settings so users see the right data at the right time.

Can you protect SEO during a Next.js migration?

Yes. I check redirects, canonical URLs, metadata, structured data, sitemap behavior, and indexable rendering before migration changes go live.

Can you debug bugs that only happen on Vercel production?

Yes. I compare local, preview, and production behavior around environment variables, runtime differences, caching, and external integrations.

Next.js in Amsterdam

Need Next.js help in Amsterdam?

Send your repository context, blocker, and timeline. I will propose a practical implementation path that keeps shipping momentum.

  • Urgent production issues get priority.
  • No passwords in the first message; access comes later if needed.
  • You get scope, risks, and the safest first move before work starts.