What big-tech SDET roles are actually like — my honest 18-month experience
Ajitesh MohantaAmbassador
Feb 16, 2026 5,653 0
I joined a FAANG-adjacent company as an SDET 18 months ago after 5 years at startups. Honest assessment:
**What's better than startups:**
- Resources — CI infrastructure, tooling budget, dedicated platform teams
- Learning — brilliant colleagues, strong internal culture around testing
- Scope — working on systems at real scale is a genuine education
**What's worse:**
- Ownership — you own a narrow slice; broad impact takes years of relationship building
- Bureaucracy — getting a new tool approved took 3 months and 4 review committees
- Velocity — I shipped more meaningful test infrastructure in 3 months at a startup than in 18 months here
**The SDET role specifically:**
At big tech it's often more infra-engineering than test-writing. I spend ~60% of my time on platform work (test frameworks, CI, tooling), ~40% on actual test development. If you want to stay close to product testing, a high-growth startup SDET role keeps you closer to that.