FULL-STACK PRODUCT ENGINEERING

Web products built
for founders and
businesses.

From idea to launch, Haayen Studio designs and develops reliable web apps, MVPs, and business websites that solve real problems and support growth.

Product-minded Built to maintain Clear communication
SERVICES

From first concept to a product that holds up.

Haayen Studio works directly with founders and teams to shape, build, and improve digital products—with clear ownership from the first decision through production.

Web App Development

Reliable software for real operations.

From customer portals to internal platforms, I turn complex workflows into focused products that teams can depend on. The codebase is structured for the next feature, not only the first release.

  • Product architecture
  • Interface engineering
  • APIs & integrations
  • Testing & deployment
Next.js · TypeScript · Node.js · PostgreSQL · Prisma
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Marketing Websites

A sharper digital front door.

Strategy, design, and development come together in a fast website that explains your value clearly, feels credible, and gives potential customers an obvious next step.

  • Content direction
  • Responsive design
  • CMS integration
  • SEO & performance
Next.js · Tailwind CSS · Headless CMS · Analytics
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MVP Development

Prove the right thing first.

I turn early ideas into focused products you can test with real users. Scope stays disciplined, while the technical foundation leaves room to learn, improve, and grow.

  • Product scoping
  • Prototype & UX
  • Core product build
  • Launch feedback loop
Focused scope · Fast feedback · Production-ready foundations
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Technical Consulting

Clarity for difficult technical decisions.

When a product or team is stuck, I bring an independent engineering perspective to architecture, frontend quality, delivery risks, and the trade-offs that matter.

  • Architecture review
  • Codebase assessment
  • Technical roadmap
  • Team support
Advisory sprint · Targeted review · Ongoing support
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WHY WORK WITH HAAYEN STUDIO?
01

One partner, end to endStrategy, design, engineering, and launch

02

Focused on outcomesProducts built around real business goals

03

Clear communicationHonest advice and visible progress

04

Quality and reliabilityClean foundations built to scale

Hi, I'm Andres.

I'm a full-stack engineer who helps founders and teams turn complex ideas into clear, dependable web products.

With Haayen Studio, you work with me directly—from the first product decision through design, engineering, and launch.

Andres Haayen, full-stack engineer and founder of Haayen Studio
MY PROCESS

A clear process from idea to launch

01

Discover

We clarify the goal, users, constraints, and what success looks like.

02

Plan

I shape the solution, define scope, and create a practical delivery plan.

03

Build

I design and engineer in focused iterations, with clear progress throughout.

04

Launch

We ship, validate the result, and improve what matters from real feedback.

THE STANDARD
Clear thinking, dependable delivery, and software your team can confidently build on.

Product focus · thoughtful engineering · no unnecessary complexity

READY TO START?

Let's build something
great together.

Tell me about your product and I'll get back to you within two working days.

  • ✓ Free 30-minute discovery call
  • ✓ No obligation