This morning I ran the kickoff call for our third AI Engineering Challenge cohort.
Ten people on the call. DevOps engineers, cloud architects, a physicist, a cybersecurity pro, a Java developer at Adobe. Different countries, different backgrounds.
I walked them through the project they’ll be building over the next 6 weeks — their digital twin. An AI version of yourself that knows your background and can take action in the real world on your behalf.
I showed the architecture diagram. RAG, vector stores, tool calling. They were engaged. Genuinely nodding, connecting dots.
Then I opened the live demo.
Someone shouted: “Do you like San Francisco?” The AI answered confidently — pulling a chunk from my professional bio mentioning Udemy, connecting dots I hadn’t explicitly put there.
Then I typed: “How can I get in touch with Kirill?” The AI asked for a name and email. I entered a fake name — Jack.
My phone buzzed. Live. On screen. “New contact request from Jack.”
The energy doubled.
Same concept. Same architecture. But now they could see it work.
Here’s the takeaway — and this applies directly to your career:
When you want to impress a hiring manager, a client, or your boss, a diagram or a concept isn’t enough on its own. It’s a starting point. The diagram shows you understand the idea. The working demo shows you can actually build it.
One gets you a nod. The other gets you the job. Or the budget. Or the promotion.
The people who stand out aren’t the ones with the deepest theory. They’re the ones who say “Here, let me show you” — and then actually show something.
Concepts open doors. Working things walk you through them.
Build something you can show,
Kirill
P.S. Will Apple hire you just because you created a live demo? Probably not. But that doesn’t make this project any less real.