Frank ChangFC
Open to opportunities

Frank Chang

@frankchang

Senior Software Engineer specializing in full stack and cloud infrastructure.

United States
Message

What I'm looking for

I am looking for opportunities that foster innovation, collaboration, and continuous learning in a dynamic environment.

I am a Senior Software Engineer with over 12 years of experience in building scalable, secure, and cloud-native systems, particularly in the healthcare and e-commerce sectors. My expertise lies in Go, Python, Node.js, and React, complemented by a deep understanding of AWS, Kafka, and CI/CD practices. I have successfully led the development of real-time claims systems and AI-driven care features, ensuring compliance with HIPAA regulations while enhancing user engagement and operational efficiency.

Throughout my career, I have designed and implemented cloud-native microservices that significantly improved processing speeds and system performance. My role at Oscar Health involved optimizing relational and in-memory databases, which reduced query latency by 75%. I take pride in mentoring junior engineers and fostering a culture of continuous learning, while also serving as a subject matter expert in Go language within my team.

My previous experience at Included Health and Shopify further honed my skills in backend and frontend development, where I successfully migrated legacy systems to modern architectures and implemented robust CI/CD pipelines. I am passionate about leveraging technology to solve complex problems and improve patient care, and I am eager to contribute my skills to innovative projects that make a difference.

Experience

Work history, roles, and key accomplishments

OH

Senior Software Engineer

Oscar Health

Jan 2019 - May 2025 (6 years 4 months)

Designed and developed cloud-native microservices in Go, enabling real-time claims processing, eligibility verification, and plan management; improved processing speed by 60% and increased throughput by 40%. Developed AI/ML-powered Python services for claim adjudication automation and personalized care delivery, increasing engagement and lowering operational overhead.

IH

Senior Software Engineer

Included Health

Oct 2016 - Dec 2018 (2 years 2 months)

Designed and implemented backend microservices from the ground up to support core virtual care workflows including appointment scheduling, care team coordination, and patient engagement. Built scalable services in Python using Flask and FastAPI, integrating securely with EHR systems and third-party providers via FHIR and HL7 APIs.

SH

Full Stack Engineer

Shopify

Jun 2013 - Sep 2016 (3 years 3 months)

Developed and maintained scalable backend systems in Node.js supporting storefront APIs, inventory management, and high-volume order processing for global merchants. Spearheaded the migration of legacy Ruby on Rails services to modern Node.js-based microservices, improving maintainability and reducing deployment cycles by 40%.

Education

Degrees, certifications, and relevant coursework

University of Texas at Austin logoUA

University of Texas at Austin

Bachelor’s Degree, Computer

Completed a comprehensive curriculum in computer science, gaining foundational knowledge in programming, algorithms, and data structures. Developed strong problem-solving skills applicable to various software engineering challenges.

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Frank Chang - Senior Software Engineer - Oscar Health | Himalayas