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Senior Backend Engineer · Round 1 screening
Candidate 3 of 47
Q2
SCREENING PROMPT 2 OF 3
Walk us through a time you debugged a production incident under pressure. What was the root cause?
JO
James Okafor 2:34
1080p
1:18 / 2:34 1.5×
Q1 · INTRO
Background & experience
0:00 – 0:54
Q2 · SCENARIO
Production incident
0:54 – 1:58
Q3 · FIT
Why this role
1:58 – 2:34
Transcript Auto-generated Full transcript
0:58 …so we had a cascading failure in the payments service right before a peak window.
1:18 I traced it to a connection-pool exhaustion — a retry storm was opening far more connections than the database could hold.
1:32 I added exponential backoff and a circuit breaker, then wrote a postmortem so the team…
JO
James Okafor
Senior Backend Engineer · 7 yrs
MATCH
92
RÉSUMÉ SUMMARYView full
7 yrs backend at Stripe & a Series-B fintech — Go, Kubernetes, Postgres
Led the payments-platform migration handling $400M/yr
BSc Computer Science, University of Lagos
Go ✓ Kubernetes ✓ Distributed systems ✓ GraphQL ~
AI VIDEO SUMMARY

Clearly articulated a real production incident with a precise root cause (connection-pool exhaustion). Strong systems thinking and ownership — described both the fix and a follow-up postmortem. Communication is concise and structured.

Specific example Clear structure Ownership
YOUR SCORING
Communication clarity
Relevant experience
Confidence & professionalism
RECRUITER NOTES
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