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Tim LorentTL

Tim Lorent

Senior Frontend Engineer

€750/day
Amsterdam, NL
8-15 years

Average response time: 1 hour

About Tim

I am a Senior Frontend Engineer with over 8 years of experience in building scalable and accessible web applications using React, TypeScript, and Next.js. My unique blend of technical and business proficiency has delivered significant results, including a 45% subscription growth at a leading eCommerce platform and a 3.4% conversion lift for a major client. I excel at leading frontend initiatives within cross-functional teams, guiding architecture decisions, and ensuring code quality standards. Additionally, I am committed to fostering the next generation of tech talent, actively mentoring through community initiatives. If you are seeking a frontend expert who can drive measurable impact and mentor team members, let's connect to discuss how I can help elevate your project.
  • Dutch

    Native or bilingual

  • English

    Fluent

  • German

    Basic

  • French

    Basic

Remote only
Primarily works remotely

Experience

  • HEMA
    Senior Frontend Engineer
    RETAIL (LARGE RETAILERS)
    May 2026 - Today (2 months)
    Amsterdam, Netherlands
    As a Frontend Developer at HEMA, I work within the newly established Engineering Organization, contributing to the digital transformation of one of the Netherlands' most iconic retail brands. My work is primarily focused on frontend development within a modern, TypeScript-first tech stack. I collaborate closely with backend engineers, mobile developers, and product owners across multidisciplinary teams, building scalable and user-facing features that reach thousands of customers daily. In addition to hands-on development, I contribute to shaping engineering culture and practices as HEMA builds its internal organization from the ground up.
    Typescript React.js Next.js
  • Impacked
    Senior Frontend Engineer
    ENTERTAINMENT AND LEISURE
    July 2025 - July 2025
    Zoetermeer, Netherlands
    • Designed and developed a fully responsive landing page using React and Astro, integrated with Sanity CMS — enabling the client to manage and update content independently without developer intervention.
    • Delivered semantic, accessible HTML aligned with WCAG standards and brand identity, with attention to SEO and performance (Lighthouse).
    • React
    • JavaScript
    • HTML5
    • Tailwind
    • Accessibility (WCAG)
    • Astro
    • Sanity CMS
    • Vercel
    • CI/CD
    • Git
    HTML5 React.js Typescript Sanity TailwindCSS
  • Bol
    Senior Frontend Engineer
    RETAIL (LARGE RETAILERS)
    May 2025 - December 2025 (7 months)
    Utrecht, Netherlands
    • Led the frontend architecture migration of a subscription platform, resulting in a 45% increase in subscriptions versus the rest of the year and over 4,000 new subscribers.
    • Developed and launched features driving 20–25% YoY growth in reactivated subscribers and 45–50% YoY growth in new trial subscriptions, sustaining multi-week momentum across acquisition and retention metrics.
    • Operated as sole frontend engineer in a backend-heavy team — owning architecture decisions, component library design, and code quality standards.
    • Built, tested, and documented a suite of reusable components using React, TypeScript, and GraphQL, contributing to a scalable and maintainable codebase.
    • Drove knowledge sharing through technical documentation and guidance, enabling backend colleagues to adopt the new frontend architecture more efficiently.
    • React
    • TypeScript
    • GraphQL
    • Tailwind
    • Component Library
    • CI/CD
    • GitLab
    • Performance Optimization
    • Technical Documentation
    • Code Review
    Typescript TailwindCSS React.js GraphQL Gitlab

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Education

  • MSc Business
    Universiteit Utrecht
    2018
    MSc Business
  • BSc Informatiekunde
    Universiteit van Amsterdam
    2015
    BSc Informatiekunde

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