The output of a product team.The agility of one.
I don't sell vague consulting. I have productized 20 years of expertise into two clear services designed to solve the biggest bottleneck in tech: the gap between design and engineering.
The 0-to-1 Product Build
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"Janne is far more than a hired gun. He’s even more than a teammate. Working with Janne feels like working with a true partner who deeply understands not only what you’re trying to achieve, but why. He brings a high level of creativity and innovation to solving any problem.
I’m even more impressed by Janne’s ability to translate those big ideas into beautifully simple and highly effective solutions. He can design, he can code, he can do it all!"
Wright Harvey
Founder, Sugarlift
Designed for early-stage founders who need to launch a world-class product to secure growth or funding.
Most early-stage founders lose momentum to the handoff gap—the slow and expensive friction between separate designers and developers. I eliminate this risk by building your entire product vertically, ensuring that the final experience feels natural, refined, and world-class. By prioritizing clear thinking over pretty pictures and working within real product constraints, I deliver an MVP that isn't just a fantasy, but a high-performance business engine ready to secure growth or funding.
The problem
You have a vision, but hiring separate designers and developers is slow, expensive, and creates a handoff gap. You risk launching a disjointed MVP that feels cheap and fails to impress.
The solution
I replace the need for a founding product team. I take full ownership of your vision—from strategy and brand to full-stack architecture. I build the entire product vertically, ensuring the final experience feels natural and refined.
The 0-to-1 Product Build outcomes
Visual Identity System A scalable brand language built into the code with assets.
Product Strategy & UX Defining the core mechanics and user journey.
Design & Engineering Production-ready web app with zero technical debt.
Growth Foundation A high-conversion marketing site to launch your product.
Strategic Workshops Deep dives for MVP scoping, Design System architecture, or technical feasibility.
The Team Accelerator
Starting at €6,500/mo
"Janne is an outstanding designer and team member. He has a unique skill set of combining world class UI & UX design skills and the ability to turn his pixel-perfect designs into production-ready code."
Juho Makkonen
Founder & CEO, Sharetribe
Designed for growing teams that need to scale quality and velocity simultaneously.
When velocity slows down, it is often because your team is battling tight time constraints within a messy, inconsistent codebase. I embed as a partner who doesn't just close tickets; I unblock your roadmap by building scalable systems and consistent patterns that reduce technical and design debt. By reducing decision-making overhead and providing documented logic, I make shipping faster and ensure the final product feels coherent.
The problem
Your backlog is growing, but velocity is slowing down. Your team is stuck in "maintenance mode," or lacks the specialized expertise to execute a high-stakes feature—like a complex AI integration—at a world-class level.
The solution
I join your team as a specialized Design & Engineering Partner. I don't just close tickets; I elevate your team's standard. I bridge the gap between your designers and devs, unblocking roadmap items and building scalable systems.
The Team Accelerator outcomes
Design Systems & Tokens Architecting the bridge between design and code.
Complex Feature Sprint End-to-end ownership of high-stakes features.
"Natural & Refined" Polish Implementing the high-end interactions that generalist devs often miss.
Growth Foundation A high-conversion marketing site to launch your product.
Strategic Workshops Deep dives for MVP scoping, Design System architecture, or technical feasibility.