Thijs BroerseThijs BroerseInterim Frontend Lead, Software Architect, React & TypeScript expert, Team coach & Scrum Master, Senior Frontend Developer

Grip on complex frontend.Better architecture.Stronger teams.

I help organisations make complex web applications scalable, maintainable and reliable — while helping teams ship better and faster.

With 20+ years of experience — including 15 years at Media.Monks, where I grew into Global Frontend Director — I bring technical depth, architectural vision and practical leadership together.

Trusted by teams behind

  • Edunivo
  • iLoan
  • Pridis
  • Toelevering Online
  • Hyundai Genesis
  • Prologis
  • Albert Heijn
  • Efteling
  • Kodak
  • Amazon
  • Radio 538
  • GMC
  • Nickelodeon
  • KPN Hi
  • Brunel
  • Old Spice
  • Rémy Martin
  • Doritos
  • Pearle Opticiens
  • Ikea
  • ING
  • Dela
  • T-Mobile
  • Heineken
  • Coca-Cola
  • Hyves
  • Unox

Most frontend projects don’t stall because developers aren’t good enough. They stall because complexity slowly outgrows the structure that carries it.

  • Features take longer to build than they used to.
  • Releases start to feel risky.
  • Tests are missing — or don’t inspire confidence.
  • Components drift apart, patterns erode.
  • And nobody truly owns the technical direction.

That’s where I come in.

You bring me in when…

  • your frontend application is growing complex and the architecture starts to creak
  • your team builds a lot, but lacks quality, direction or speed
  • you need a senior who builds alongside the team and guards technical decisions
  • your project depends on solid TypeScript, React, testing, component architecture or performance
  • you need temporary frontend leadership without committing to a permanent hire
  • you want AI in your development workflow — with professional control and quality

What I bring

Not extra hands. Ownership.

Architecture & technical direction

Scalable frontend architecture, clear patterns, healthy boundaries — and choices that still hold up six months from now.

Hands-on senior development

I build complex features, refactors and foundations myself — in React, TypeScript, Next.js and modern frontend stacks.

Quality & reliability

Testing, Storybook, typed contracts, CI checks and workable standards that help teams ship faster with confidence.

Team leadership

I help teams collaborate better, make better decisions and take ownership of quality — through mentorship, not mandates.

AI-assisted development

I use AI as an accelerator, while staying responsible for architecture, security, maintainability and risk. Senior engineering with modern tooling — not vibe-coding.

With me you get someone who doesn’t just resolve tickets, but takes ownership of the technical success of your frontend.

20+years of web development & leadership
15years at Media.Monks, ending as Global Frontend Director
10×FWA award-winning projects
30+brands, from start-ups to global enterprises

Proof

Complex projects, shipped.

Window & Door Configurator — Toelevering Online

Toelevering Online

Window & Door Configurator

Freelance Senior Frontend Engineer

After two failed multi-team attempts, I delivered the configurator to production solo — with URL as single source of truth, a type-safe GraphQL layer and an architecture now reused across the platform.

  • React
  • TypeScript
  • GraphQL
  • Zustand
  • Storybook

Pridis

Unified Communication Platform

Frontend Lead · Lead Developer · Scrum Master

Led an international frontend team building a high-security, web-based communication platform for a major government organisation — owning architecture, quality and delivery.

  • React
  • TypeScript
  • Matrix
  • Avaya
  • MQTT
Global Frontend Leadership — Media.Monks

Media.Monks

Global Frontend Leadership

Global Frontend Director · Technical Director

Led and developed frontend teams across multiple countries, authored the open-source Frontend Coding Standards and trained new developers through MonkAcademy.

  • Leadership
  • Coding Standards
  • Open Source
  • Mentorship
3D Car Configurator — Hyundai Genesis

Hyundai Genesis

3D Car Configurator

Architect & Lead Developer

“The best-looking car configurator on the web” — an FWA-awarded, seamless 3D experience with true-to-life lighting for the Genesis G70, G80 and G90.

  • Vue
  • TypeScript
  • WebGL
  • FWA Award

Who I work with

I work best with organisations that are building or evolving a complex web application and temporarily need senior frontend leadership.

  • Scale-ups & SaaS companies
  • Digital product teams
  • Organisations with complex internal tools
  • Companies with React/TypeScript applications
  • Teams adopting AI without losing quality
  • Agencies that need senior reinforcement

What others say

Don’t take my word for it.

During Thijs his 15 years at the Media.Monks he has shown to be a specialist within his role and able to maneuver in a dynamic high paced environment and skilled in communicating with stakeholders across different teams. Next to this he has also invested in improving the company culture and wellbeing through his efforts within the Culture Club. Some traits that add to the above and Thijs has shown throughout his time with Media.Monks are: critical thinking, connectivity, empathy and mentorship.
Anne van ZessenHR Business Partner at MediaMonks
I've worked with Thijs for 12,5 years and have always been impressed by his skill and knowledge. He's an absolute legend and one of the best I've ever worked with. Would absolutely recommend!
Dennis de RooijProject Director at MediaMonks
Thijs is a machine. Not only is he a very skilled developer but he's someone who likes to strive for top quality and transfer his knowledge to everyone in his team. During my years working with him, I not only learned from his technical skills but also from his vast experience leading other developers (which included many highly skilled, experienced programmers).
Ronald MéndezOperations Director at MediaMonks & FWA Jury Member
I highly recommend Thijs for his great technical skills and ability to deliver high quality work. He possess a friendly and approachable nature, fostering a collaborative work environment. With his attention to detail and commitment to meeting deadlines, he is a valuable asset to any development team.
Robert SlootjesTechnical Director at MediaMonks
Having worked with Thijs over a period of more than 15 years, I can honestly say that Thijs is one of the people I have enjoyed most working with. Thijs is a hard worker, with great dedication and focus, who will always go the extra mile to reach the best result possible. As a developer he has vast knowledge of the field he is active in, always strives for improvements, and puts quality first. He has a broad perspective, always trying to view things from multiple sides, and is always willing to learn new things. As a team lead Thijs takes great care of his team members, putting their interests in favour of his own, while using a personal approach to each and every one to make sure they have an optimal environment to work, thrive and develop in. Besides that, Thijs is generally a really nice guy with a great sense of humour, easy going and flexible, with a strong focus on principles without being dogmatic. Any company should feel proud and blessed to have Thijs in their team.
Stephan BezoenLead Android Developer at MediaMonks

Have a complex frontend project that needs technical direction?

Let’s talk. No pitch, no obligations — just a good conversation about where your project stands and what it needs.

Or call me directly on +31 (0) 6 899 36 821