NOPPAKLAO CHUMMAROENG

• Experienced in backend systems development using Couchbase DB, Redis, Typescript, ScyllaDB, Kafka, and JavaScript, with proficiency in Agile methodologies. Skilled in creating APIs for diverse applications, including file management, banking operations, master data, and e-wallets. Developed custom libraries for enhanced API functionality and integration with OpenAPI Swagger, optimizing performance with caching strategies. Expertise includes Docker, Nginx, and GitLab CI/CD for robust deployment and continuous integration.

Key Projects:

• API Payment Gateway :APIs for banking operations such as payment, deposit, top-up, and withdrawal services for various banks including KBank, BBL, and SCB, as well as other services like AIS, True, and DTAC. These APIs facilitate transactions through vending machines, web counters, and SabuyMoney app.
• Master Data API: Created a flexible API to manage master data with schema validation and permission checks using Couchbase DB.
• E-wallet API : Developed and managed API processes for SabuyWallet and vending machine wallets. API includes functionalities for creating wallets, checking wallet balances, and adjusting wallet amounts. adjustment processes are handled through Kafka for efficient processing.
• API File Upload: API for File Upload to S3 provides functionality for managing file uploads, ensuring data integrity, security, and comprehensive audit logging capabilities. It includes file type validation and script checking to enhance security measures and ensure only authorized files are uploaded
• Internal Library: Developed a library to handle file uploads to S3 and SFTP. Enhanced error handling for AJV validation, focusing on cases using discriminators to ensure precise error reporting. Introduced options attributes in API's Swagger to enable caching of response data, utilizing req.params and req.query for validation.
• Courier API Management: Developed APIs for managing courier services and other operations, including integration with third-party services like Lazada.

• Developed both frontend and backend systems, deploying to customer servers.
• Education Web: Worked on admissions, registration, and grade results web applications using PHP and JavaScript.

• Vehicle Record System: Developed and maintained the system.
• Property Management Website: Worked on the property management website using PHP and JavaScript.

Stock Management System: Developed an Android app for stock management using Java.