Guy Thomas

Engineering Manager

Experience

Engineering Manager

Sigma Computing • New York, NY

Oct 2024 - Present
  • Lead 2 teams of 10 engineers delivering 0-1 products and scaling legacy systems
  • Grew product ARR 10x YoY ($1M to $10M); launched revenue stream generating $1M+ in 6 months
  • Hands-on contributor to critical features; promoted 2 engineers
  • 2 patents pending for novel data exploration in pivot tables and query optimization

Engineering Manager

Instacart • San Francisco, CA

Jan 2022 - Feb 2024
  • Led 9 engineers building content and targeting platform powering thousands of experiments
  • Architected A/B testing infrastructure for marketing campaigns, enabling self-serve workflows
  • Grew team from 5 to 9 engineers; developed 1 to promotion with zero regrettable attrition

Senior Software Engineer II

Instacart • San Francisco, CA

May 2021 - Jan 2022
  • Led 5 engineers building promotional awareness framework, increasing campaign visibility 40%
  • Collaborated with Growth and Ads teams to integrate promotions into core shopping experience

Senior Software Engineer

Lyft • San Francisco, CA

Apr 2019 - May 2021
  • Led team of 4 engineers building insurance claims platform (React/TypeScript/Python) processing 10,000+ claims annually
  • Owned technical roadmap and architecture decisions for the claims adjudication workflow
  • Mentored 2 junior engineers; both promoted within 12 months

Software Engineer

Reflektive • San Francisco, CA

Jun 2017 - Jan 2019
  • Built React/Redux performance management flows used by 500+ enterprise customers

Software Engineer

IBM • New York, NY

Jul 2014 - Jun 2016
  • Developed 20+ client micro-sites enabling rapid enterprise sales pitches