
Boston, MA
Mark Faga
Principal engineer and founder
I ship software. Two decades of it, from UI to data infrastructure.
Full-stack principal engineer who moves fluently across frontend, APIs, and data infrastructure, with two decades of shipping production software. Founded Wayfair’s GraphQL platform, now serving billions of requests a day. Co-founded Via AI, where I built a data platform resolving 100M+ profiles and nearly a trillion relationship edges in under 5 hours, plus an agentic system that coordinates AI coding agents across the team. I run Faga Labs, a principal engineering studio. I treat AI as architecture: agents, MCP integrations, and LLM triage are core primitives.
Now
Now
Faga Labs
Founder, Principal Engineer
Faga Labs is my company. My principal engineering studio.
Since Jan 2026
Via AI
Co-Founder / Engineer
Relationship intelligence platform that finds warm introduction paths to people and companies.
Since Aug 2025

TruFit Talent
Fractional CTO, part-time
Unbiased, AI-based simulation assessments for recruiting.
Since May 2026


TBD Angels
Member
A Boston angel group. If you are a founder raising capital, I am glad to connect you with the group.

Massachusetts AI Coalition
Angel pledge signer
The Massachusetts AI angel investor community supporting local founders.
Highlights
Highlights
- 100M+ profiles in under 5 hoursVia AI, Aug 2025 – Present
- $700M ARRHunt Club, Mar 2023 – Jun 2025
- Billions of requests a dayWayfair, May 2019 – Mar 2023
- $10M estimated annual savingsezCater, Jan 2017 – Apr 2019