Mary Tish Phillips is a full stack engineer building AI-powered products end to end.

I do that work both at HP and on my own, owning everything from backend systems and AI integration to product design.

At HP, I own backend development of the script generation component in an AI system that now resolves 60% of support tickets, over 44,000 a year, and I built AI recommendation and analysis features in a portfolio credited with nine customer deals worth over $1.07M. I was also appointed to the committee guiding HP’s organization-wide AI adoption, where I build agents and skills other teams use. I’ve led a workshop on AI development for 30 engineers and mentor engineers at every level, including our intern.

Some of my favorite work happens outside of HP. Twine is an app for couples that I designed and built solo, with about 250 users. Couples share date ideas, post photos that unlock only once both partners have posted, and watch their dates fill a shared map. I built it in React Native and TypeScript, on a Supabase and Postgres backend that uses row-level security to keep each couple’s data private and PostGIS to power place search.

Before Twine, I designed, branded, and built Style Blend, an AI styling app with about 100 users. You choose the fashion influences you love, and Style Blend uses the Claude API to recommend outfits from your own closet and suggest pieces to buy that bring your wardrobe closer to that style. Building both apps myself, from the first sketch to real users, taught me to think about the product, not just the code.

I graduated magna cum laude from Trinity University with a B.S. in Computer Science and History and a minor in Mathematics. My research on detecting AI-generated images won Best Paper at the FICTA Conference in London. Before engineering, I spent eight years as a fashion model, signed with nine agencies worldwide, working with clients like Vogue and Vera Wang.

Outside of work, you’ll find me on the tennis court, training for my next marathon, or on a yoga mat.