Founder · Engineer

Lifelong Builder.

In 2022, I made a bet: the future belongs to generalists who bridge deep tech and business, not specialists in either. It paid off.

Since then I've built AI and healthcare startups, run an SEO/GEO project to #1 in LLM rankings, and studied Computer Science magna cum laude at Bilkent, and this is where I write about how.

Read the blog
Egehan Yıldız

Selective Freelance

Work with me

I take on a handful of clients at a time, only when the fit is right. The work is mine alone: no agency, no account manager, no junior doing the actual building. Pick a lane below and the form opens with it selected.

Straight to my inbox. I reply personally, usually within a day.

Building, advising & teaching

Some of What I Built

  • RelayFormer Co-Founder & CTO

    Led the engineering behind a self-improving reasoning OS ("Company Brain") that captures a team's tacit knowledge and live reasoning, run daily by the companies that used it. As a team, we closed one of the biggest telecommunication giants as our design partner.

  • A Sip of AIFounder

    Founded an AI education company that reached millions organically, built a community of 250+ students, and gained thousands of followers.

  • LisanaFounder

    Built and scaled a B2B Gynecological Patient-Tracking SaaS to approx. 4-figure ARR with 15+ doctors onboarded.

    Watch the demo
  • SEO & GEO#1 in LLM rankings

    Dominated LLM rankings (#1 across ChatGPT, Claude, Grok, and Gemini), achieving 10x revenue for my client in the healthcare industry.

  • The AI BibleAuthor

    Wrote a technical curriculum book on AI called "The AI Bible" (500+ pages).

    Read the book
  • ConsultingAI & Data Consultant

    Advised a few established organizations on AI & data strategy through Dialectica (including Toucan Toco, permission granted).

  • Teaching & MentorshipBilkent University

    Teaching Assistant for GE401/402 and MAN 495, advising 35+ startup and business project teams (230+ students) on pitch decks, market research, idea validation, and business capstones.

  • VeriFactBuilder

    A real-time agent that cross-checks live speech against reference docs at ~1.4s latency to catch costly misinformation in high-stakes meetings.

Contact

Let's talk!

Got a project? Send the brief, I read every one myself and reply personally. Everything else is welcome as well. If you have a business idea worth pressure-testing, an advisory ask, a good conversation about building things... let's chat!

Email: egehan.mergen@gmail.com