Engineering Challenge Series · 2027
100Days
Challenges
Challenges
100 Days. 100 Challenges. 100 New Things.
One real-world technology challenge every day until 2027.
A 100-day journey to solve real-world engineering challenges, learn something new every day, and enter 2027 with 100 new lessons.
Day 11 / 10011% Complete
A new challenge is released every day at 8:00 AM IST
Today’s Challenge
Day 11
The Database Is Healthy, But the Application Is Slow
SREDistributed SystemsObservabilityAdvanced15–20 min
The dashboard is almost aggressively unremarkable:…
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05Hours
30Minutes
29Seconds
Day 12 unlocks
October 3, 2026 at 8:00 AM IST
100-Day Journey
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