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Olcay Yilmazcoban

Founder, ex-VC, and YC alumni building the next generation of startups

San Francisco, California

about

I'm a YC founder and ex-VC investor with an engineering background. I've co-founded multiple ventures including SenpAI.GG (YC S21), a gaming coach serving the 1.4 billion PC gamers globally, and FashionI, which brought algorithmic feed-based experiences to e-commerce. Before that, I invested in early-stage technology startups at ACT Venture Partners in Europe. Now I'm building Founder Factor, an investment syndicate of YC alumni dedicated to backing the top 5% of YC startups.

how i help

Founder & Startup Strategy

I help founders navigate from idea to product-market fit, having built multiple ventures from scratch and accelerated through Y Combinator S21.

Venture Capital & Deal Flow

With experience as an investment associate at ACT Venture Partners and now as a YC alumni partner, I can advise on fundraising, investor relations, and identifying early-stage opportunities.

Product & Engineering Leadership

My background spans electrical engineering, computer science, and hands-on product management across gaming, e-commerce, and space tech ventures.

YC Network & Ecosystem Access

As a YC S21 alumnus now syndicating investments, I provide direct access to top-tier founder networks and institutional knowledge from the world's leading startup accelerator.

builds

SenpAI.GG

Co-founded and led a gaming coach platform serving the global PC gaming community of 1.4 billion players, leveraging AI and product expertise to teach gamers how to improve.

YC S21 | 2019-2024

FashionI

Co-founded an algorithmic feed-based e-commerce platform, pioneering personalized shopping experiences through technology and design.

2017-2019

Founder Factor

Leading an investment syndicate of Y Combinator alumni dedicated to backing the top 5% of YC startups, bringing founder perspective and network to early-stage funding.

2025-Present

experience

YC Alumni Partner · Founder Factor

October 2025 - Present
  • Leading an investment syndicate of YC alumni dedicated to backing the top 5% of YC startups

Co-founder & CEO · SenpAI.GG

June 2019 - March 2024
  • Built a gaming coach platform for the 1.4 billion PC gamers globally
  • Participated in Y Combinator S21 batch

Co-founder & CEO · FashionI

October 2017 - June 2019
  • Created an algorithmic feed-based experience in e-commerce

Investment Associate · ACT Venture Partners

November 2015 - November 2017
  • Invested in early-stage technology startups across Europe

let's talk

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