Jacob Chen

I am a Staff Software Engineer with 14+ years building and leading backend and full-stack systems across healthcare, payments, and social platforms. I've driven end-to-end engineering for large-scale, mission-critical services with strong focus on security and compliance.

At Amazon I architected and led a nationwide telehealth scheduling and care-delivery platform, modernized membership and billing systems, and implemented event-driven healthcare data architectures that improved data integrity and uptime. I delivered HIPAA- and HITRUST-compliant services and integrated GenAI workflows to reduce clinician documentation time.

Earlier, I built low-latency, real-time ML pipelines at Twitter processing billions of events daily and optimized stream-processing throughput and reliability. I also designed and scaled payment authorization and tokenization systems at Amazon Pay achieving sub-100ms p95 latency and PCI‑DSS compliance.

I mentor and grow cross-functional teams, establish CI/CD and observability frameworks, and translate regulatory and product requirements into secure, reliable engineering systems that deliver measurable business impact.