Bill Eisenhauer

Summary

Senior engineering manager and hands-on platform builder. Led developer experience, internal platform, and reliability teams at ezCater and Stitch Fix. Deep experience in AI-assisted development adoption, tooling evaluation, engineering productivity measurement, and developer workflow automation. Used a 2025–2026 sabbatical as an intensive AI-era builder lab across 100+ repositories.

Core Strengths

  • Developer experience, internal platforms, and engineering productivity measurement
  • AI-assisted development adoption, tooling strategy, and safe organizational rollout
  • Platform and infrastructure architecture (event systems, metadata, service design)
  • Engineering leadership across product and platform teams (IC through Senior EM)
  • Scaling engineering organizations (20 to 200+ engineers)
  • Remote-first team leadership and operational accountability
  • Technical proximity — code review, architecture decisions, hands-on prototyping

Selected Experience

Independent Builder — AI-Augmented Engineering 2025–Present
Sabbatical
  • 8,488 GitHub contributions across 100+ repositories in one year
  • Built across SaaS products, developer tools, workflow automation, and AI agent frameworks
  • Every project starts from a real customer problem, not technology for its own sake
  • Developed transferable judgment about AI-assisted development practices
Senior Engineering Manager 2022–2025
ezCater — Events + Messaging Platform
  • Led 10 direct reports including Staff Engineers and Engineering Managers across two teams
  • Designed event metadata layer using IaC patterns for schema validation and discoverability
  • Built React prototype for natural-language event analytics
  • Created postmortem accountability automation; diagnosed cultural root cause with data
  • Managed platform serving the entire engineering organization
Engineering Manager 2018–2021
Stitch Fix
  • Helped scale technology organization from 20 to 200+ engineers
  • Grew and promoted eleven remote engineers
  • Led redesign of stylist workflow around algorithm-generated picks
  • Influenced org design at Director scope including team boundaries and reporting
Lead Engineer 2015–2018
Stitch Fix
  • Created Smart Fix Assignment Service — real-time integration with data science platform
  • Service became template for embedding algorithmic intelligence into products
  • Contributed to improvements in AOV and keep rate leading into 2017 IPO
  • Researched, specified, and implemented end-to-end without a product manager

Earlier Career

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