Philip Sebastian
Contact

Philip Sebastian

I'm Phil. Founder, product operator, and designer building AI-native products at the intersection of trust, clarity, and real-world use.

5× accelerator alumni: OnDeck, Antler, Pioneer, YC SS, and more. Founding designer on SAP Build, part of SAP’s cloud platform serving 440,000+ customers across 180+ countries within a €30B+ business.

Now

  • Building KorpusKorpusTrust infrastructure for suspicious messages, screenshots, and links.korpus.app — trust infrastructure for suspicious messages, screenshots, and links
  • Exploring MoonriseMoonriseWellness and longevity systems with a calmer AI posture.joinmoonrise.com — wellness and longevity systems with a calmer AI posture
  • Operating Sidequest VenturesSidequest VenturesCurated builder community for designer-led founders, repeat founders, and accelerator alumni.Join Sidequest Community — a curated builder community for designer-led founders, repeat founders, and accelerator alumni

Experience

  • Product Designer at Apple
  • Senior UX Designer at SAP
  • Built and operated startups (Backed by YC Alumni) across fintech, SaaS, wellness, and consumer
  • Worked across developer tools, enterprise software, and AI-native products
  • Paragon / Apple / SAP / Imgur (selected work)

Principles

  • Clarity beats complexity
  • Trust is a product layer
  • Design should improve decisions
  • AI should reduce noise, not create more of it
  • Ship → learn → refine

Contact

Open to select 0→1 product, design, and advisory work.