Open to opportunities

Alex Hu

@alexhu

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Senior software engineer specializing in scalable, cloud-native full-stack systems and team mentorship.

United States

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What I'm looking for

I seek roles building scalable, cloud-native systems where I can lead engineering best practices, mentor teams, and improve performance and reliability.

I am a Senior Software Engineer with extensive experience building and maintaining scalable, cloud-native systems across healthcare, finance, and e-commerce. I focus on clean architecture, test-driven development, and delivering maintainable, high-quality code.

I have improved platform scalability and API responsiveness through optimizations in .NET and Spring Boot services, caching strategies, and database tuning, and I’ve reduced operational costs and response times across multiple roles.

I build and optimize frontend applications using React, Next.js, and Angular while designing resilient backend services on AWS, Azure, and GCP. I also implement CI/CD, infrastructure automation, and robust testing to improve deployment confidence and system reliability.

I enjoy mentoring engineers in SOLID principles and best practices, debugging complex production issues, and partnering with product and design teams to deliver end-to-end features that improve performance and user experience.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Guild

Jul 2025 - Present (6 months)

Improved platform scalability and API responsiveness by ~30% through .NET optimizations, Redis caching, and query reduction; led modular React/Next.js frontend implementations to increase feature delivery velocity and mentored engineers on clean architecture and TDD.

C++.NET Redis React Next.js API Design TDD AWS

Senior Software Engineer

Oscar Health

May 2022 - Apr 2025 (2 years 11 months)

Reduced API response times by ~40% via Spring Boot refactors, DB indexing, and async processing; improved frontend performance with React/Angular optimizations and increased system reliability during peak traffic by ~35% using AWS services.

Java Spring Boot React Angular AWS ECS RDS SQS SNS Databases CI CD Jest

Software Engineer

Amazon

Aug 2020 - May 2022 (1 year 9 months)

Reduced operational costs by ~20% through service and data-access optimizations across EC2, ECS, RDS, DynamoDB and S3; implemented event-driven workflows with SQS/SNS/Kafka and built monitoring dashboards to improve incident response.

AWS EC2 ECS RDS DynamoDB S3 Kafka SQS SNS Monitoring Docker Cloudwatch

Software Engineer

Rally Health

May 2018 - Aug 2020 (2 years 3 months)

Maintained and enhanced microservice APIs for a coaching platform, improving API reliability by ~30% and tuning PostgreSQL for performance and scalability; developed backend services in Go and Scala and built monitoring dashboards to reduce incident response time.

Go Scala PostgreSQL Microservices Splunk AWS API Development Load Testing

Software Engineer

Capital One

Jul 2017 - May 2018 (10 months)

Maintained Spring Boot microservices for secure Zelle transfers, improving transaction reliability via validation, error handling, and retries; monitored and tuned MongoDB clusters and performed production support on Linux servers.