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Timothy Mazenge
Mid-Level Software Engineer specializing in Ads frontend and high-scale web platforms
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About
Backend engineer with ad-tech experience who improved advertiser dashboard accuracy by exempting 1% of traffic from ML-based dropping in a ~1B-requests/day pipeline, trading storage for higher customer satisfaction and reduced debugging load. Demonstrates strong migration discipline (phased rollouts, compatibility layers, rollback/change-history recovery) and production API/security practices in Python/FastAPI (async, caching, throttling, RBAC/RLS, monitoring).
Experience
Education
Key Strengths
- Designed backend change to improve advertiser dashboard data accuracy by exempting 1% of traffic from ML dropping (at ~1B requests/day scale)
- Balances tradeoffs between storage cost and customer satisfaction/engineering effort reduction
- Cross-team alignment across 3 teams using data-driven stakeholder persuasion
- API scalability approach using async endpoints, caching, throttling, and monitoring
- Risk-managed migrations via phased rollouts with logging/monitoring
- Maintained service continuity during migration by building a compatibility layer between old and new data formats
- Proactively identified migration failure modes, drove rollback, and documented learnings (one-pager) to prevent recurrence
- Implemented production authN/authZ with RBAC and row-level security; automated permission updates via scheduled scripts
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