Riza User
@rizauser1
I build AWS serverless microservices and APIs for fintech and e-commerce platforms.
PhilippinesWhat I'm looking for
I build backend microservices and integration APIs for Chargeflow’s automated chargeback platform, including Shopify refund and managed-processor endpoints, attribution services, and analytics event pipelines.
Previously, I delivered AWS serverless and full-stack features for Growsari’s B2B e-commerce platform and built CI/CD, testing, and Java tooling at Nokia. I care about clean, well-tested services, sound architecture, and solving hard problems in collaborative Agile teams.
Experience
Work history, roles, and key accomplishments
• Design and build backend microservices (AWS serverless, Node.js/TypeScript) powering Chargeflow's automated chargeback platform for e-commerce merchants
• Built a marketing/attribution backend service with REST APIs and server-side analytics event pipelines, improving data quality across signup and app-install flows
• Developed Shopify integration APIs — including refund creation/retrieval and m
• Built serverless web applications on AWS using Node.js, TypeScript, GraphQL, and DynamoDB in a microservice architecture
• Developed Python/Flask/MySQL services powering end-user features (insurance, discounts, promotions) for a B2B e-commerce platform
• Delivered single-page application features in React.js
• Designed, built, and monitored a Jenkins CI pipeline for automated Debian package releasing, reducing total release duration
• Developed and maintained Python libraries imported into Robot Framework suites for product testing
• Fixed priority bugs and built features for a Java application visualizing product component structure and status
Senior Web Programmer
Sep 2016 - Dec 2016 (3 months)
Worked as Senior Web Programmer at Movie and Television Review and Classification Board.
Programmer
Jun 2015 - Jun 2016 (1 year)
Worked as Programmer at Polytechnic University of the Philippines Software Research Group.
Worked as Programmer at Internetworking and Broadband Consulting Co Ltd.
Education
Degrees, certifications, and relevant coursework
Faster Python Code
Issued May 2020
Advanced Python
Issued May 2020
Programming Foundations: Web Security
Issued Jun 2020
Critical Thinking
Issued May 2020
Python: Advanced Design Patterns
Issued May 2020
AWS for DevOps: Continuous Delivery and Process Automation
Issued Jun 2020
Designing RESTful APIs
Issued Jun 2020
Polytechnic University of the Philippines
Bachelor of Science in Information Technology, Information Technology
2012 - 2016
Availability
Location
PhilippinesAuthorized to work in
Salary expectations
Social media
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