Open to opportunities

Timothy Lee

@timothylee2

Message

Staff software engineer with 12 years building scalable healthcare and e‑commerce systems.

United States

Message

What I'm looking for

I seek senior engineering roles building scalable, secure backend and full‑stack systems in fast‑paced, data‑driven teams with strong DevOps and product collaboration.

I am a Staff Software Engineer with 12 years of experience delivering large‑scale healthcare and e‑commerce platforms. I design and implement backend services (primarily Java/Spring Boot) deployed on AWS, lead cross‑functional teams, and build user-facing features with React/Redux while ensuring security and HIPAA compliance.

I have shipped telehealth systems, real‑time messaging, AI‑driven routing and recommendations, and high‑throughput evented architectures using Kafka, Redis, and Kubernetes. I focus on performance, observability, and data‑driven improvements—driving measurable gains such as conversion uplifts and improved patient satisfaction through A/B testing and analytics.

Experience

Work history, roles, and key accomplishments

Current

Staff Software Engineer

Current

Amazon

Mar 2018 - Present (7 years 10 months)

Designed and implemented Amazon's telehealth service using Java/Spring Boot on AWS, delivering scheduling, WebRTC video, e-prescriptions, and Stripe payments while ensuring HIPAA-compliant APIs and improving patient satisfaction via AI-driven routing and A/B testing.

Java Spring Boot AWS Terraform WebRTC React Python RESTful APIs JWT Datadog

Software Engineer

Airbnb

Sep 2012 - Feb 2018 (5 years 5 months)

Developed e-commerce features and responsive mobile interfaces using Java and React, built scalable messaging with Redis and Kafka, and ran A/B tests that drove a 15% uplift in conversion rates.