Audit the walk-up experience end to end and ship your first measurable improvement to the live demo.
OPEN ROLE / DESIGN ENGINEERING / 05 OF 05
Lead UX Engineer
Design and build the face of the machine: the walk-up experience where voice, visuals and a digital human meet.
THE ROLE / WHAT YOU OWN
About this role.
The walk-up experience is the product: a stranger approaches a machine in a loud public space and within seconds is talking to a digital human that listens, answers and draws a route. As Lead UX Engineer you design that experience and build it, from Figma exploration to shipped code running on kiosk hardware.
You own the design system across every embodiment: the terminal, the hologram and the mobile companion. Voice states, motion, typography, 3D wayfinding and the presentation of digital humans all report to you.
THE RAMP / NO WARM-UP LAPS
Your first 90 days.
Every role here starts with real work on the live product. This is the ramp we will agree on together, and the pace we hire for.
Stand up the design system: tokens, motion rules and voice states documented and enforced in code.
Put an experience you designed and built on terminal hardware in a real venue pilot.
RESPONSIBILITIES / THE WORK
What you will do.
- 01
Design and build the on-terminal experience in React and TypeScript on kiosk hardware
- 02
Own voice-first interaction patterns: listening states, latency masking, interruption and graceful recovery
- 03
Stage the digital humans: framing, motion and presence that feel calm instead of uncanny
- 04
Design and build the 3D wayfinding presentation on top of our venue models
- 05
Make the experience work on public floors: reach, glare, noise, language and WCAG accessibility
- 06
Build and govern the design system across terminal, hologram and mobile
- 07
Hold the performance budget so the experience stays fluid on fixed hardware
TECH / THE STACK
What you will work with.
We run across AWS, Google Cloud and Azure in the cloud, and on our own terminal hardware on the floor.
Design
- Figma and prototyping
- Motion and interaction design
- Design tokens and systems
Build
- React and TypeScript
- Three.js and WebGL
- Animation and spring physics
Interfaces
- Voice and audio-reactive UI
- Kiosk and fixed-hardware constraints
- Multilingual typography
Quality
- Accessibility and WCAG
- Performance profiling
- Usability testing on real floors
QUALIFICATIONS / THE BAR
What you bring.
Must have
- 6+ years across product design and front-end engineering, with shipped work you both designed and built
- A portfolio that shows motion, interaction depth and taste
- Strong React and TypeScript; you are credible in an engineering code review
- Accessibility fluency beyond the checklist
- You test with real people and change your mind on evidence
Bonus points
- Voice interface experience
- 3D, WebGL or game UI work
- Kiosk, automotive or embedded screen experience
- Avatar or character presentation work
THE CULTURE / DAY TO DAY
How we work.
EVIDENCE OVER OPINION
Demos, harnesses and floor tests settle debates. The best argument in the room is a measurement.
WEEKS, NOT QUARTERS
Work ships to a real floor fast. You will watch a stranger use what you built this month.
SMALL AND SENIOR
No layers, no committees. Five hires, two founders, one room when it matters.
REAL FLOORS
We test in public: noise, glare, hurry and all. If it works there, it works.
WHAT WE OFFER / STRAIGHT TERMS
€7,500 to €11,000 per month.
Depending on experience, with founding-team equity and profit sharing on top. We are a startup: the band is transparent, the upside is real and the ownership is yours.
- €7,500 to €11,000 per month, depending on experience, the same transparent band for every open role
- Founding-team equity: you own a piece of what you build
- Profit sharing once the machines are earning
- Senior ownership of a whole layer of the product, with direct access to both founders
- Amsterdam base with hybrid flexibility, plus time on real venue floors
- The hardware and tools you need, without a procurement fight
APPLY / DESIGN ENGINEERING
Tell us what you would build first.
Twelve months from now, strangers walk up to your work every day and find it effortless. Send a short note with your portfolio, with at least one thing you designed and built yourself. A conversation with a founder follows within days.
Apply as Lead UX Engineer