Services

Services

Services

Advanced Prototyping

From concept to clarity with zero production code

I build high-fidelity prototypes that look, feel, and behave like the real thing. It might be a mobile app, a SaaS, two connected devices, or an interaction that spans across multiple digital touchpoints. These are not click-through demos; they’re functional, logic-driven experiences powered by real data, variables, and device behaviors.

Why prototyping?

Prototypes help teams align early, test faster, and uncover critical issues before it gets expensive. They’re perfect for usability testing, stakeholder buy-in, and cross-team understanding.

Realistic

Feel how your product is supposed to behave like a real apps: animations, sensors, data.

Performing

Feels like a native app, zero lag, offline availability, stunning Android, iOS & PC performance.

Quality

Polished UI and animations, tailored to your needs, Conditions and logic that work as expected.

1 Week

Average prototype with built-in logic requires 30-40 hours in ProtoPie. Depends on project complexity.

Why work with me

With experience in both digital and physical prototyping using tools like ProtoPie, Arduino, Fusion360, I help bridge gaps between design, engineering, and business — turning abstract ideas into tangible, testable outcomes

Development of the software takes time. With prototyping we get a quicker “live demo”. No pitch deck can provide the same experience as giving an investor the opportunity to click and test the upcoming software.

Carlos Nevado

CEO, Swan Beauty Tech

Development of the software takes time. With prototyping we get a quicker “live demo”. No pitch deck can provide the same experience as giving an investor the opportunity to click and test the upcoming software.

Carlos Nevado

CEO, Swan Beauty Tech

Development of the software takes time. With prototyping we get a quicker “live demo”. No pitch deck can provide the same experience as giving an investor the opportunity to click and test the upcoming software.

Carlos Nevado

CEO, Swan Beauty Tech

Konstantinos introduced prototyping transforming our product development process. His leadership accelerated our journey toward finding product-market fit, and left an imprint in our culture.

Jonathan Gall

Ex-CPO, Futurehome

Konstantinos introduced prototyping transforming our product development process. His leadership accelerated our journey toward finding product-market fit, and left an imprint in our culture.

Jonathan Gall

Ex-CPO, Futurehome

Konstantinos introduced prototyping transforming our product development process. His leadership accelerated our journey toward finding product-market fit, and left an imprint in our culture.

Jonathan Gall

Ex-CPO, Futurehome

Product Design

Designing with intent

I design digital experiences that are not only elegant but functional, thoughtful, and technically feasible. From early wireframes to detailed UI flows, I focus on creating interfaces that solve real problems while being intuitive and efficient.

Why it matters

Good product design makes adoption easier, reduces churn, and drives business outcomes. It’s not just how things look — it’s how they work, scale, and adapt.

Why work with me

With a track record in Smart Home, Energy, E-commerce, Healthtech and cross-platform design, I bring a systems-thinking mindset to every challenge. I collaborate closely with engineers and product managers, ensuring that the final experience balances user, business and technical needs.

UX Research

Ask better questions, build better products

I conduct lean, practical research to uncover real user needs, pain points, and mental models — from fieldwork and interviews to remote testing and auto-recruitment with Useberry. Research is baked into my design process, not an afterthought.

Why it matters

Too often, teams make decisions based on assumptions. Research gives you the clarity and confidence to move forward with purpose, reducing rework, de-risking investments, and increasing user satisfaction.

Why work with me

I’ve led research in real-world environments taking my prototypes to Scandinavian and Greek homes I know how to translate messy, real-life insights into design requirements. I work fast, keep things iterative, and collaborate closely with your team to build solutions that at the end of the day boost business value.

Ready to move fast with clarity

in just 1 week* ?

* hi-fi prototypes take 35 hours on average. Depends on availability and project complexity. Reach out for a free estimation.