SaaS Startup (Series B)
Challenge: Backend team (8 engineers) all wrote JavaScript/TypeScript. Needed Python for ML feature development but no internal expertise. Hiring Python engineer would take 3-4 months.
- Recommendation API deployed to production in week 9 (vs. 16-20 week estimate with new hire)
- 5 of 8 engineers now maintain Python services independently
- Zero P0 incidents on Python services in first 90 days (solid testing foundation)
Aug-Oct 2025