Open to opportunities

William Lin

@williamlin3

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Senior full-stack engineer building scalable, secure, real-time healthcare platforms.

United States

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What I'm looking for

I seek senior engineering roles where I can build secure, scalable healthcare or real-time products, mentor teams, and drive architecture, automation, and ML-driven features.

I am a senior full-stack software engineer with deep experience designing and delivering scalable, HIPAA-compliant telehealth systems, real-time services, and data-driven features. I combine frontend excellence in React/TypeScript with backend and microservices expertise in Java, Node.js, and Go.

At SimplePractice I led architecture and implementation of telehealth UIs, event-driven microservices, and AI-driven automation that reduced patient wait times and administrative overhead while improving uptime and performance. I mentor engineers, improve CI/CD and observability, and drive infrastructure automation with Terraform and cloud-native services.

I am energized by building reliable, secure systems that improve user outcomes, applying rigorous testing and monitoring, and delivering measurable business impact through performance optimization, accessibility, and machine-learning driven features.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

SimplePractice, LLC

Aug 2019 - Present (6 years 1 month)

Architected HIPAA-compliant telehealth platform and microservices, improving query performance 40%, uptime to 99.99%, and reducing patient wait times 40% through AI-driven routing; mentored engineers and accelerated deployments.

React TypeScript Next.js AWS Terraform Kafka PostgreSQL CI CD

Software Engineer

Expedia Group, Inc

Apr 2015 - Aug 2019 (4 years 4 months)

Rebuilt legacy systems into modular micro-frontends and resilient microservices, improving query performance 30% and reducing post-release defects 30% through TDD and CI/CD migrations to Kubernetes.