Development Services

React, Next.js, and TypeScript development — from full-stack web apps and AI integrations to CI/CD pipelines and Azure deployments. Serving businesses across Rotterdam, Amsterdam, Utrecht, and the Netherlands.

Next.js & React Development

Full-stack web applications built with Next.js 16 and React 19. From admin dashboards, webshops and blog platforms to real-time streaming apps focused on clean architecture, type safety, and production-ready code.

  • App Router, Server Components & RSC patterns
  • SSR, SSG & ISR strategies
  • Authentication & role-based access control
  • Real-time features with SSE & WebSockets
  • Supabase, Prisma & database integration
  • State management with Zustand & Context
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AI & LLM Integration

Building AI-powered applications from local LLM setups to agentic pipelines. Hands-on experience with document retrieval, conversation memory, multi-tool agent loops, and connecting LLMs to real-world data sources to automate and optimize workflows.

  • Local & cloud LLM integration (Ollama, OpenAI)
  • Retrieval-Augmented Generation (RAG)
  • Agentic tool-use loops with multi-step reasoning
  • Streaming responses via Server-Sent Events
  • Connector abstractions for external data sources
  • Voice I/O, memory extraction & model routing
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TypeScript & Code Quality

Type-safe, maintainable codebases that scale. Helping teams adopt TypeScript, establish testing practices, and build reliable software with strong engineering foundations.

  • TypeScript migration & strict mode setup
  • Type-safe API contracts & database queries
  • Unit & integration testing with Jest & RTL
  • End-to-end testing with Cypress
  • Linting, formatting & code standards
  • CI/CD automation for test pipelines
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Performance & Web Vitals

Auditing and optimizing web performance for real-world impact. My own portfolio scores 98 on desktop Lighthouse — I apply the same discipline to client projects.

  • Core Web Vitals & Lighthouse optimization
  • Bundle analysis & code splitting
  • Image & asset optimization
  • Dynamic imports & lazy loading
  • Zero CLS & minimal TBT targets
  • SEO & structured metadata
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CI/CD & DevOps

Production-grade pipelines that automate testing, preview deployments, and releases. Experienced with Azure DevOps, GitLab CI, and GitHub Actions for Next.js apps deployed to Vercel and Azure.

  • Azure DevOps YAML pipeline setup
  • GitLab CI/CD pipelines
  • GitHub Actions workflows
  • Preview deployments with Vercel
  • Lighthouse CI in the pipeline
  • Secrets management & environment config
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Service Areas

Rotterdam

Primary location. Serving businesses throughout Rotterdam and the surrounding Rijnmond area.

Amsterdam

Frontend development services for Amsterdam startups and established companies in Noord-Holland.

Utrecht

Web development services for businesses in Utrecht and the central Netherlands region.

Den Haag

Government and corporate web solutions for organizations in The Hague and Westland.

Zuid-Holland

Comprehensive coverage throughout South Holland province, including all major cities.

Netherlands

Remote development services available nationwide with on-site consultations when needed.