Developed social login, notification emails, and data modeling and API for user product purchasesAutomated existing tasks through the development of an admin pageIntegrated Stripe subscriptions and Tosspayments for in-house product purchases, and strengthened web and app subscription authentication with RevenueCat integrationDeployed and maintained AWS Lambda, EC2, and S3Maintained in-house databases including DynamoDB, MySQL, and PostgreSQLRefactored legacy systems and maintained existing business operationsAgile ScrumSkill Keywords: Node.js, Python, Serverless, Express.js, Django, RDS, DynamoDB, AWS, React.js, Agile

Provided technical support for the STeP (Secure Transform Exchange Portal) solution and have experience integrating DRM, DLP, and NAC solutions for various clients.Conducted requirement meetings directly with clients, documented requests on-site, and set up diverse databases tailored to the client's environment.Built Apache servers in Linux and Windows environments, and configured duplexing, mirror servers, active-standby setups, and SSL based on the client's scale.Demonstrated excellent ability to identify whether issues were client-related or server-related, and effectively communicated specific problems to developers through log analysis in case of server errors. Additionally, extensive technical support experience enables flexible problem-solving skills.Provided view tables to clients or regularly executed procedures for HR integration, using client HR information tables in the database.

Handled solution troubleshooting support (analyzing Fiddler, database, and server logs).Created various documents such as work plans and implementation specifications during solution deployment.Provide solution guide documents for clients in PPT format and conducted training sessions.