A 20-minute live design sprint at UX Camp Amsterdam that turned into the concept I couldn't stop thinking about.
Teams of UX Camp attendees — strangers an hour earlier — were given a brief, a timer, and a stage. The challenge: design a human ⟷ voice AI agent interview that feels immersive and meaningful, not shallow.
The brief was blunt about it: this is a win-win on paper — lower cost, more scalability, less human bias. But today's voice AI interview experiences feel shallow. That gap was the actual design problem.
My first move wasn't a wireframe — it was empathy. What does a candidate think before an AI interview starts? How do they feel mid-conversation? What do they do when they're stuck? What do they say about it afterward?
Glass box.
Not black box.
This was the principle I introduced: the interview should be a glass box, where candidates can see what's happening inside it — not a black box that leaves them confused about what's coming next. Every feature decision that followed traced back to that one line.
I led the empathy mapping, introduced the "glass box, not black box" principle, and sketched the concept live during the 20-minute window — but I didn't do it alone. I worked alongside a teammate who'd never been interviewed by a voice AI before that morning. His outside view didn't just add polish — he questioned assumptions I made in real time, contributed several of his own feature ideas, and it was his idea to name the product Humantic AI — a wink at "Agentic," built around the idea that the whole concept centered humans, not just AI capability. We won with that name.
For this write-up, I've renamed it HAI: Hello, AI — a decision I made afterward, on reflection. "Humantic AI" is clever once you know the wordplay behind it, but it needs that explanation to land; without it, it reads as a typo of "humanistic," not a deliberate idea. "Hello, AI" doesn't need footnotes — it's instantly legible, and it does real work for the concept itself: it's literally the first thing a transparent, human-facing AI interviewer would say to you, which ties straight back to the "glass box" principle the whole idea is built on. This is a piece meant to be read cold, by someone with zero context on the room or the joke — clarity earns its keep here more than cleverness does.
The actual board from the 20-minute sprint — sketched live, presented as-is.
Candidates are told what to expect and how their data is used, before anything starts — no hidden consent checkboxes.
A visible "Pause & Think" control means 30 seconds of silence reads as thinking, not failure.
Candidates flag their own comfort level, live, so the AI reads their actual state instead of guessing from silence.
Real-time nudges — "slow down," "be concise" — instead of letting nerves build silently.
Candidates can opt into their own copy of the recording, sent instantly and paired with feedback later.
Self-view is a toggle, not a default — one of the only controls that's fully the candidate's.
Four teams, one shared brief, twenty minutes on the clock. HAI won on the strength of the "glass box" framing and the density of candidate-first details packed into a single sketch.
Twenty minutes is enough to sketch a concept. It's not enough to interrogate whether the AI underneath it can be trusted to be fair. That's what I kept coming back to in the weeks after.
The sprint got the instincts right. The deeper research is what would make them defensible.
Sketched in 20 minutes. Still on my mind a week later. Thanks to UX Camp Amsterdam and the judges who scored it 1st place.