Microservices reliability · SDE I → SDE II · Jul 2020 — Oct 2023 · 1 min read
Improved response times by 20% across 12 production microservices.
- Microservices
- 12
- Faster responses
- 20%
- Daily requests
- 70K+
The problem
Complex production issues across many services needed fast diagnosis and lasting fixes.
What we did
- Debugged and resolved issues across 12 production microservices (Node.js, REST APIs).
- Ran root cause analysis with Datadog APM, Sentry and AWS CloudWatch.
- Mentored L1/L2 support engineers on debugging and contributed to knowledge bases and technical documentation.
Result
Response times improved by 20% across services handling 70K+ requests a day.
What I learned
- 01
Traces beat guesses: instrument first, then fix.
- 02
Teaching support engineers to debug scaled the fixes beyond me.
Stack
- Node.js
- REST APIs
- Datadog APM
- Sentry
- AWS CloudWatch
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