Hi, I'm Jonathan.
Freelance product designer (6y+).
I research, strategize, and design for proptech & fintech SaaS.
What drives me: solving hard problems, shipping fast, and iterating until it works.
Based in Luxembourg, working remotely.
TotalEnergies / Digital Factory
Revamping a power plant monitoring SaaS to increase kWh tracked per operator by 23%
Redesigned an industrial monitoring SaaS used by 9 control center operators managing 350+ energy assets. Through field observation, usability testing in production, and collaborative co-design workshops, delivered a responsive dashboard that increased kWh tracked per operator by 23%.
BforBank
Designing the onboarding flow that ranked #1 on Google's UX Benchmark 2023
Built a fully compliant banking onboarding for BforBank's complete app relaunch. Meeting all KYC, security, and regulatory constraints while achieving a full account opening in under 10 minutes.
Spie Batignolles
Designed a construction app connecting site crews' real workflows to a complex ERP, replacing 3 legacy tools with a single interface to manage personnel, equipment and procurement
TotalEnergies / Digital Factory
Reduced refinery pipe leaks by 6% with a corrosion risk tool deployed to 500 inspectors across 4 sites
Malaama
Designing and building the website for an NGO empowering girls' education in Mauritania
Testimonials
“Strongly autonomous during the discovery phase on highly complex technical and strategic topics. During the build phase, seamlessly integrated into squads and adapted to diverse operational environments. A dedicated team player, highly receptive to feedback, and a positive driving force within a 20-person Design Studio. Also acted as a committed mentor to junior consultants, possessing all the core qualities for a highly successful career.”
My journey
I started in user research, with two master's degrees in experimental methodology, ergonomics, and cognitive psychology, plus several client research projects during my consulting years.
Then I joined TotalEnergies Digital Factory for 3 years, where I worked as Lead Designer in product squads building tools from scratch: product vision, first designs, user testing, iteration. Always embedded in a product team.
Going freelance changed everything. I went all-in on AI, not just for design, but for research, product thinking, and development. I broadened into product management and started coding what I design.
At the same time, I got certified as a property manager and real estate developer in Luxembourg. I began investing in real estate and built Valoris, my own SaaS product to simplify property management.
Side project
Outside of work, I'm a cycling obsessive. After 8 years playing fantasy cycling with the same group of friends, I decided to build my own to improve the core game.
Have a project? Let's talk.
1. Clarify your needs on a free discovery call
2. Get a quote with hours and rates
3. Start working together