Open to opportunities

Allen Chen

@allenchen1

Message

Senior Full Stack Software Engineer specializing in scalable, secure cloud-native systems.

United States

Message

What I'm looking for

I am seeking senior engineering roles where I can build scalable, secure cloud-native systems, lead teams, and deliver AI-enabled product features in regulated environments.

I am a Senior Full Stack Software Engineer with eight years building scalable, secure web and cloud-native systems across healthcare and finance, delivering AI-driven features and microservices using JavaScript, TypeScript, Python, Java, and Golang. I have designed cloud architectures on AWS (Lambda, EC2, S3, DynamoDB, RDS), implemented event-driven systems with Kafka, and improved clinician efficiency by 40% through LLM-driven meeting summarization.

I lead and mentor cross-functional teams, drove a monolith-to-microservices transition, and built CI/CD and IaC pipelines using AWS CDK, CodePipeline, and related tools. I emphasize compliance (HIPAA/PHI), performance optimization, robust testing (TDD), and integrating third-party APIs to deliver high-impact, production-ready features.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Amazon

Mar 2020 - Present (5 years 6 months)

Led full-stack development for Amazon OneMedical telehealth features, migrated monolith to microservices, and improved clinician efficiency by 40% through AI-driven meeting summarization while ensuring HIPAA-compliant PHI storage.

React Angular Java Python Golang KMS Lambda Kafka Microservices CI CD

Full Stack Developer

Vendorpass

Sep 2016 - Jan 2020 (3 years 4 months)

Designed and built a high-accuracy payroll processing engine with microservices and parallel execution pipelines, reducing processing time and securing PII with AWS KMS while integrating banking and time-tracking APIs.

Golang AWS Lambda React PostgreSQL DynamoDB SQS OpenAPI TDD

Education

Degrees, certifications, and relevant coursework

University of Houston

Bachelor of Science, Computer Science

2012 - 2016

Completed a Bachelor of Computer Science program with coursework in core computer science topics and practical software engineering from 2012 to 2016.