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Ujjwal Kumar Singh

SDET, Skeps

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Blog

Lessons and thoughts from real life incidents and learnings.

When a Single Alphabet Decided the Fate of the First Demo
October 2024 Ujjwal Kumar Singh
#Testing #Bug Story #Debugging #QA

A real testing story about how a tiny mistake in a single variable name nearly affected a product demo and what it taught about debugging and quality.

Unconditional Update That Brings the Server Down
January 2024 Ujjwal Kumar Singh
#Testing #Database #Bug Story #Debugging

A testing story about how an unconditional database update caused a critical failure and what it taught about safe query practices.

What building a CI/CD system taught me about understanding architecture - Part 1
Ujjwal Kumar Singh
#Testing #Pairwise Testing #Bug Investigation

From "I Raise the PR and Merge It Myself" to a Real CI/CD Pipeline: Everything I Learned Building One From Scratch

An Uninvited Guest in the Diwali Party
Ujjwal Kumar Singh
#Testing #Pairwise Testing #Bug Investigation

A real story about how a production bug interrupted a Diwali celebration and what it taught about pairwise testing.

© 2026 Ujjwal Kumar Singh
Crafted with curiosity and testing mindset