Johan Tamayo

I’m a full-stack engineer with 6 years of experience shipping mission-critical products across drone delivery, fintech, and consumer technology. I thrive in high-growth environments where I can move fast, own outcomes, and stay ahead of emerging technologies.

At Matternet, I built a Mission Control System and Fleet Management software for FAA Type-Certified urban drone delivery. I delivered real-time telemetry dashboards and multi-hub monitoring with React, TypeScript, Next.js, and state management, and I integrated Mapbox/CesiumJS to visualize live drone positions, flight paths, and geofences.

I’ve also driven major backend and platform improvements, including migrating telemetry pipelines with MQTT/HiveMQ, Kafka, and PostgreSQL (cutting ingestion latency ~70%) and improving query throughput by ~65% with a GraphQL/Hasura layer. I’ve enforced RBAC at row/column level to reduce unauthorized exposure (~80%), built microservices across TypeScript, Python, and Go on AWS with Terraform, and supported operational reliability through 24/7 production on-call.

Earlier, at Themis and Meta, I helped launch core B2B compliance SaaS modules and delivered kid-safe messaging experiences aligned with COPPA requirements. I’m known for bridging frontend and backend engineering, integrating LLM providers for regulatory summarization and classification, and building robust testing/CI systems to keep quality high while we iterate quickly.