Cookd · Generated draft2026 · H1 2026 H1 Performance Review — Jordan Rivera
Senior Product Engineer · Northwind · Growth
Executive summary
Over the first half of 2026, I led work across customer impact, technical depth, collaboration, and mentorship — improving onboarding activation, resolving a production performance issue, and unblocking a cross-team integration, several backed by clear before-and-after numbers.
Key accomplishments
- Reduced onboarding drop-off by reworking the first-run checklist — first-week activation up from 41% to 52%.
- Fixed a production performance issue on a core page — p95 latency down ~38%.
- Streamlined the AI prompt flow — token usage down 28% (~$3k/mo saved) with no measurable quality drop.
- Unblocked a cross-team API integration — two teams unblocked and shipped roughly a week early.
Impact by category
- Customer impact — onboarding activation, urgent client launch
- Technical impact — performance fix, reusable components
- Collaboration — cross-team API unblock
- Mentorship — guided a teammate’s first major feature
Skills demonstrated
product sense · data analysis · Postgres · debugging · design systems · cross-team collaboration · mentoring · prompt engineering
Suggested self-review wording
- “I improved first-week activation from 41% to 52% by redesigning the onboarding checklist around the first key moment.”
- “I led a cross-team effort to resolve an API contract dispute, unblocking two teams ahead of deadline.”
Tip: where a result reads generally, add a concrete number, outcome, or quote to make it stronger.