About
Twenty years of product, UI and brand design work.
I’m Otto Tasnadi, a Lead Product Designer with more than 20 years of experience creating digital products for startups, scale-ups and enterprise technology companies. Based in Satu Mare, Romania, working with teams remotely.
My work sits at the intersection of business strategy, product thinking, user experience and visual design. Throughout my career I’ve designed products used by millions of users, built scalable design systems, led multidisciplinary teams, led rebrandings, defined brand identities and strategies, and collaborated closely with engineering, marketing and leadership.
I enjoy solving ambiguous problems, creating clarity, and turning complex ideas into products that are intuitive, scalable and commercially successful.
At Thoughtworks I lead design on enterprise engagements — currently the modernisation of a large legacy B2C platform — covering discovery, design systems, prototyping, user testing, stakeholder management and delivery support. Before that: banking platform tooling at Codecrafters by BT, creative direction and product design at Connatix, and agency work at Halcyon Mobile for clients including British Airways, bwin, Ryalto and TruValue Labs.
Alongside client work I design and build my own products — Klearyon, Symboolean and Legatus — handling strategy, brand, UI and AI-assisted development myself, which keeps me close to what actually ships.
How I work with teams
Embedded lead: I design, and I keep the design decisions consistent across squads.
In practice that means running discovery and inception workshops, owning the design system, reviewing work across teams, pairing with engineers during implementation, and handing over documentation the client team can maintain without me.
See the full processPhilosophy
Good design isn’t decoration. It’s making the right decisions before making beautiful ones.
The best products are built where business goals, user needs, engineering constraints and thoughtful execution meet.
My shape
T-shaped: deep in product UI and design systems, broad enough to cover the rest of the product.
Depth
Where I go furthest and where clients hire me first.
- Enterprise product UI: data tables, forms, permissions, states, WCAG AA
- Design systems: tokens, atomic components, multi-brand theming, versioning
- End-to-end product design: discovery through delivery support
Breadth
Enough range to carry a product on my own, or to speak the language of the people who do.
- UX research, product framing and strategy
- Brand identity, art direction and marketing design
- Prototyping, user testing and stakeholder facilitation
- AI-assisted development: shipping my own products front to back
Working principles
I work inside delivery, not next to it
I sit with the squads: backlog refinement, story writing, acceptance criteria, QA of the built UI. Design decisions get written down where engineers actually read them.
Design systems as production code
Tokens, atomic components, documented usage rules and versioning. On multi-brand work that means one component set with brand themes, not four parallel libraries.
Research that fits the schedule
Usability sessions, stakeholder interviews and prototype tests run in the same sprints as delivery. Small samples, fast turnaround, findings logged as tickets.
Enterprise UI is mostly tables, forms and states
Most of the work is data density, validation, permissions, error and empty states, and accessibility to WCAG AA — not hero sections.