About

Twelve years of asking users what they actually meant.

I design clarity into products that have every reason to be complicated. For more than a decade that has meant automotive cockpits for Porsche and MAN, clinical platforms for ZEISS, industrial AI for Siemens, and enterprise systems for energy, finance and government. Teams bring me in when a product has many stakeholders, heavy data and no room for error, and I stay close to development until it ships.

Shiraz Tumasyan, photographed in black and white against a green background

Timeline

How I got here.

  1. 2013

    Working student, Corporate HSE&S at RWE Innogy: employee surveys and audits.

  2. 2014

    Master's thesis at MAN Truck & Bus: a driving-simulator study of a commercial-vehicle display concept, with 30 participants.

  3. 2015

    Consultant for automotive UX on behalf of Porsche: 911, Panamera and Cayenne driver's workplace.

  4. 2017

    Cross-series UX concept lead at MAN Truck & Bus for the 2020 truck generation. Red Dot Design Award.

  5. 2022

    Independent. Siemens, ZEISS, STIHL, Telekom MMS, Uniper, AirPlus, Comet, DZ Bank, RIO.

  6. 2024

    Coach for an online UX and UI design course at Armenian Code Academy.

  7. 2026

    Shipped Wonfolio, my own AI product for UX designers.

Credentials

The process is a standard, not a style.

I work to DIN EN ISO 9241, the international standard for human-centered design. It is why my specifications survive contact with an engineering team, and why a claim about usability from me comes with a method attached.

  • M.Sc. Human Factors Engineering, Niederrhein University of Applied Sciences
  • B.Sc. Labour Economics & Sociology, Armenian State University of Economics
  • CPUX-F certified
  • Red Dot Design Award, MAN digital cockpit
  • German · English · Russian · Armenian

Beyond client work

Teaching, writing, building.

Coaching

I teach an online UX and UI design course at Armenian Code Academy, in English, and mentor designers moving into enterprise and safety-critical work.

Writing & podcasting

I write about interaction design and host a podcast on human-computer interaction as UX Papa. A 90-term UX glossary lives on this site, free to use.

Building

Wonfolio is my own product: it turns raw UX material into publishable case studies. I built it because a consultant who talks about AI products should have shipped one.

Tell me what's stuck.

Two or three sentences and a rough timeline. I reply within two working days.