Available to hire
Hi, I’m Annie Chang, a senior full-stack developer with eight years of experience designing, building, and scaling secure, user-centric applications end-to-end. I thrive on turning complex problems into robust, maintainable software and enjoy owning projects from idea to production.
As a confident woman in tech, I’m known for taking ownership of complex technical problems, elevating code quality and architecture, mentoring other engineers, and driving alignment across product, design, and engineering. I bring strong technical rigor, clear communication, and a collaborative, outcome-driven approach to every project.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Language
English
Fluent
Work Experience
Lead Developer at Booz Allen Hamilton
January 1, 2023 - November 21, 2025Architected scalable ASP.NET Core applications integrated with SQL Server databases, resulting in a 15% reduction in data retrieval times and improved efficiency across multi-management systems.
Senior Software Developer at Concept Art House
February 1, 2023 - February 1, 2023Engineered a scalable ASP.NET MVC backend with Entity Framework for efficient data access, leading to a 12% increase in application responsiveness and streamlined performance for web and mobile solutions.
Full Stack Developer at McKesson
March 1, 2018 - March 1, 2018Built scalable backend services using Java and Spring Security, improving authentication workflows and achieving a 14% improvement in overall security and performance.
Full Stack Developer at Los Angeles Capital Management and Equity Research, Inc
May 1, 2021 - May 1, 2021Designed scalable back-end services with Java and Spring Security, improving authentication efficiency and ensuring robust access control for secure data transactions across enterprise trading platforms.
Senior Full Stack Developer at Booz Allen Hamilton
March 1, 2023 - PresentDeveloped secure, cloud-native web applications using Java, Spring Boot, AWS, and PostgreSQL, focusing on high availability, scalability, and reliability for large-scale enterprise systems. Collaborated with frontend teams to translate business requirements into robust backend services and APIs.
Senior Full Stack Developer at Booz Allen Hamilton
March 1, 2023 - PresentDesigned and implemented RESTful microservices on AWS (EC2/Lambda, API Gateway, RDS), resolving performance bottlenecks in existing services and improving average API response times by 30–40%.
Senior Full Stack Developer at Concept Art House
September 1, 2021 - February 1, 2023Developed cloud-based platforms supporting game art production—UI/UX, asset pipelines, and 2D/3D tooling. Implemented RESTful services on AWS and optimized asset workflows for rapid iteration and delivery.
Full Stack Developer at Los Angeles Capital Management and Equity Research, Inc
May 1, 2018 - May 1, 2021Built batch-processing systems in Java/Spring Boot, designed and maintained PostgreSQL data models and queries, and implemented data pipelines for institutional portfolios. Led CI/CD improvements and automated testing to enhance reliability.
Full Stack Developer at Concept Art House
September 1, 2021 - February 28, 2023Developed cloud-based web platforms supporting game art production and asset review using Python (FastAPI, Django) on the backend and Angular/React on the frontend, enabling tighter collaboration between internal art teams and clients. Designed and implemented secure RESTful APIs with FastAPI and Django for projects, asset management, and feedback, replacing fragile legacy endpoints and reducing API errors. Built responsive SPAs in Angular and React to streamline producer and artist workflows. Integrated the platform with AWS services (S3, EC2/Lambda, CloudFront, CloudWatch) to handle large uploads and monitoring, stabilizing performance during peak activity. Modeled and fed Snowflake data pipelines for analytics dashboards to track project status, asset delivery, turnaround times, and quality metrics. Diagnosed and fixed backend and frontend performance bottlenecks, and implemented role-based access control and secure session handling across systems. Collaborated with designers, produ
Education
Bachelor of Science in Computer Science at University of California, Davis
August 1, 2008 - September 1, 2011Bachelor's Degree in Computer Science at University of California, Davis
August 1, 2012 - September 1, 2016Bachelor of Science in Computer Science at University of California, Davis
August 1, 2012 - September 1, 2016Qualifications
Bachelor's Degree in Computer Science
August 1, 2012 - September 1, 2016Industry Experience
Computers & Electronics, Software & Internet, Professional Services, Gaming, Media & Entertainment, Education, Government
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Hire a Full Stack Developer
We have the best full stack developer experts on Twine. Hire a full stack developer in San Francisco today.