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Sergio Ramirez

@sergioramirez

Senior Android Engineer at LogicMark who reduced production crash rates by 35% and builds Kotlin mobile products.

Canada
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At LogicMark, I reduced production crash rates by 35% through structured telemetry, issue triage, and defensive validation. I also strengthened OAuth authentication and added resilience patterns to mobile data flows.

At ThinkOn Inc., I reviewed mobile and backend architecture and recommended modular boundaries that enabled safer, more independent releases across three teams.

At Lululemon, I strengthened API contract validation, reducing client-side parsing and deserialization errors by 40%. I also improved crash reporting and monitoring, cutting mobile issue resolution time by 25%.

I built SafeConnect, an Android wellbeing and personal safety platform using Kotlin and Jetpack Compose, with connected-care features such as safety check-ins, chat, and audio/video calls. I also built web platforms for e-commerce and job search, integrating React, FastAPI, and PostgreSQL.

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UC

Universidad Católica de Colombia

Bachelor of Science, Computer Science

B.S. in Computer Science from Universidad Católica de Colombia.

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