Tevye Krynski.
Product Designer · Engineer · Founder of AI Product Studio

I invent, design,
and build human-centered AI.

I take an idea from a sketch all the way to a shipping product — inventing the concept, designing the experience, and writing the code, with a craftsman's care for how it feels to use.

MIT Ph.D. in computational cognitive science. Twenty-five years building software that understands people, incorporating virtuous feedback loops so the product gets better as people use it. Products that solve problems, create serendipity, and bring people closer to their highest aspirations.

Concept & invention Interaction & UX design Full-stack build LLMs in production React · Node · TypeScript · Python · Claude Code · AWS · GCP · Convex
Technology should help people become more human, not more robotic.

Collaborations

with Sedonya Kay & Edy Garfinkiel, UX designers
With Sedonya Kay, UX designer. I invented and built both of these at Digital Wisdom; Sedonya and I co-designed the user experience.
AI Video Library — interactive coaching content across mobile screens
AI Content · Case Study · Live in App Store ↗

AI Video Library

A searchable, AI-indexed library that surfaces exactly the right teaching moment from hours of coaching footage — turning a sprawling archive of video into an on-demand curriculum that answers real questions.

Role: Inventor & builder · UX co-designed Read case study
AI Concierge · Live Product

Web Wisdom

An AI concierge auto-generated from a website's own content. It answers visitors' questions, points them where they need to go, and recommends what to do next — all in the brand's own voice.

Role: Inventor & builder · UX co-designed Visit site
With Edy Garfinkiel, UX designer. I was the inventor and implementer on both of these — concept, product, and build are mine — and Edy and I co-designed the user experience. The case studies below were written up by Edy for his own portfolio.

Case studies authored by Edy Garfinkiel.

Career highlights

a sample of earlier roles
Music Discovery

Beats Music

Built the recommendation and personalization engine behind Beats Music (now Apple Music) — helping listeners discover new music they'd genuinely love instead of more of the same.

Role: Director of Data Science & Personalization 2011–2013
Fintech · Inclusion

Migo

Scaled the engineering and data organization behind real-time credit decisions — extending small loans to underbanked people across Nigeria and Brazil.

Role: VP of Engineering & Data 2019–2021
Search · Relevance

Amazon (A9)

On Amazon's A9 search team, modeled how people really search and click — building relevance signals and debiased metrics that helped millions find exactly what they were looking for.

Role: Senior Software Development Engineer 2006–2011