Naung Lin Shein

Portfolio case study: naunglinshein.com/experience/freelance/

• Designed and developed a custom ERP core system integrating inventory, finance, and marketplace data using Angular, Spring Boot, PostgreSQL, Docker, Keycloak, and REST APIs.
• Implemented stock management, accounting, cashflow forecasting, margin calculation, VAT and tax handling, automated accounting, and financial snapshot workflows.
• Integrated with the Bol.com Retailer API for automatic product, price, and commission synchronization and built scheduler jobs for sync, forecasting, and financial calculations.
• Delivered role-based access control, email notifications, background job processing, and workflow design for finance, inventory, and automation processes.
• Built and improved additional client systems including trading platform order flows, wallet transactions, media platform APIs, ERP and POS enhancements, and microservices refactoring.

Portfolio case study: naunglinshein.com/experience/mit/

• Delivered ERP modules and business workflows using Java, Spring Boot, Angular, and SQL Server for enterprise operations.
• Built reports, vouchers, barcodes, PDF exports, and Excel exports with JasperReports for finance and operational teams.
• Automated database backup, restore, update, user provisioning, scheduled jobs, stored procedures, and trigger-based workflows.
• Implemented security controls including account management, concurrent-login restrictions, and integration support across multiple systems.
• Mentored junior developers, reviewed code, resolved production issues, and supported deployment workflows on Azure.

Portfolio case study: naunglinshein.com/experience/gys/

• Built and maintained LMS-connected learning products including a learning platform, dynamic website, messaging features, dashboards, and an English level test system.
• Delivered course and outline upload flows, multi-modal messaging, subject enrollment, progress dashboards, scores, and achievement certificate features.
• Implemented LMS-driven testing features for audio, video, image, and text question types with answer checking and final score display.
• Worked across backend logic, database design, UI implementation, troubleshooting, deployment, and user support.

Portfolio case study: naunglinshein.com/experience/bestguide/

• Delivered office management, tutoring, staff portal, and company website systems using C# .NET MVC and SQL Server.
• Implemented student-teacher matching, request intake, order and status tracking, task visibility, and role-based access control.
• Built staff activity submission, balance updates, withdrawal requests, and approval workflows tied to office operations.
• Supported location-based teacher search, lesson registration, teacher applications, and AWS-based CI/CD workflows.

• Contributed to a delivery-service project in a team SDLC environment during internship.
• Worked on UI and UX design, database design, CRUD implementation, and map integration for delivery workflows.
• Supported testing, presentations, and collaborative delivery of project milestones.