Open to opportunities

Thomas Lee

@thomaslee3

Message

I am a Staff Software Engineer specializing in secure, scalable cloud-native systems.

United States

Message

What I'm looking for

I seek senior engineering roles building secure, HIPAA-compliant, cloud-native platforms where I can lead teams, improve reliability, and deliver scalable, low-latency systems in a collaborative, engineering-driven culture.

I am a results-driven Staff Software Engineer with 11+ years building secure, high-performance platforms, including leading the cloud-native Sydney Health product that served 16 million users and improved access for 45.7 million members. I design and deliver HIPAA-compliant systems that process millions of transactions with minimal latency, achieving industry-grade uptime and measurable user-impact improvements.

I drive end-to-end engineering outcomes across microservices, observability, and ML-powered features, improving reliability through CI/CD, Terraform, and Kubernetes while mentoring engineering teams and enforcing secure coding practices. I prioritize operational excellence, measurable performance gains, and cross-functional collaboration to deliver scalable, compliant solutions in multi-cloud environments.

Experience

Work history, roles, and key accomplishments

Staff Software Engineer

Elevance Health

May 2020 - Jun 2025 (5 years 1 month)

Led development of Sydney Health, a cloud-native digital health platform serving 16 million users and improving access for 45.7 million members; engineered microservices and FHIR/HL7 integrations that reduced query latency by 20% and improved provider recommendation accuracy by 15% while ensuring 99.98% uptime through CI/CD and HIPAA-compliant deployments.

Java Spring Boot AWS Lambda Kubernetes Redis Kafka React TensorFlow HIPAA

Site Reliability Engineer

Datadog

Sep 2016 - May 2020 (3 years 8 months)

Codified IaC policies and developed Go/Python tooling and Kubernetes automation that reduced manual configuration errors by 40%, accelerated incident resolution by 30%, and improved system uptime to meet 99.99% SLAs for 22,000+ customers.

Terraform Go Python Kubernetes Kafka Cassandra Observability

Software Engineer

Itexus

Jun 2014 - Aug 2016 (2 years 2 months)

Built secure C#/.NET APIs and Azure cloud security policies for fintech platforms that reduced unauthorized access incidents by 40%, resolved 95% of identified vulnerabilities, and improved real-time dashboard performance by 30%.

C#.NET Azure Angular D3.Js API Security PCI DSS SIEM