The proof graph
18 proofs · 26 weeksProven across 1 domain
The trophy case
David Osei is building their record on Powstik.David Osei is building their record on Powstik.
Build your own →Recent proofs
Led cross-functional product review with design, eng, and PM — aligned in one session
Ran first team retrospective as new manager — 5 concrete action items, all owned
Led cross-functional product review with design, eng, and PM — aligned in one session
Led incident retrospective after production outage — RCA completed, no blame
Reduced sprint planning from 3 hours to 45 minutes by pre-grooming tickets
Coached engineer X from junior to first solo feature ship in 6 weeks
Grew team NPS from 6 to 9.2 over 2 quarters
Reduced sprint planning from 3 hours to 45 minutes by pre-grooming tickets
Negotiated 40% budget increase for team tooling by connecting spend to velocity metric
Ran first team retrospective as new manager — 5 concrete action items, all owned
Resolved conflict between two senior engineers about system design direction
Resolved conflict between two senior engineers about system design direction
Hired first engineer — structured process from JD to offer in 3 weeks
Negotiated 40% budget increase for team tooling by connecting spend to velocity metric
Delivered difficult performance review with clear improvement plan and timeline
Conducted skip-level 1:1s with all 8 engineers — 4 recurring themes surfaced
Delivered difficult performance review with clear improvement plan and timeline
Resolved conflict between two senior engineers about system design direction
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