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I'm Zin Mi Shein, a Senior Full Stack .NET Engineer with 11 years of delivering mission-critical systems for Singapore's government agencies, public hospitals, and leading banks. I have shipped production platforms including Singapore's Self-Payment Kiosk system across polyclinics, hospitals, and community health clinics, with 90+ kiosks deployed and zero critical post-deployment issues. I'm also experienced in Myanmar's banking sector, architecting core banking systems for KBZ, ABANK, CHDB, MWD, and AGD banks, covering accounts, loans, payments, general ledger, and ATM operations. I thrive under pressure, own delivery end-to-end, and continually bring improvement ideas to cross-functional teams while mentoring junior engineers and leading code reviews.…I'm Zin Mi Shein, a Senior Full Stack .NET Engineer with 11 years of delivering mission-critical systems for Singapore's government agencies, public hospitals, and leading banks. I have shipped production platforms including Singapore's Self-Payment Kiosk system across polyclinics, hospitals, and community health clinics, with 90+ kiosks deployed and zero critical post-deployment issues. I'm also experienced in Myanmar's banking sector, architecting core banking systems for KBZ, ABANK, CHDB, MWD, and AGD banks, covering accounts, loans, payments, general ledger, and ATM operations. I thrive under pressure, own delivery end-to-end, and continually bring improvement ideas to cross-functional teams while mentoring junior engineers and leading code reviews.

ZIN MI SHEIN

Full Stack Developer, Back-End Developer, Front-End Developer, +3

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I'm Zin Mi Shein, a Senior Full Stack .NET Engineer with 11 years of delivering mission-critical systems for Singapore's government agencies, public hospitals, and leading banks. I have shipped production platforms including Singapore's Self-Payment Kiosk system across polyclinics, hospitals, and community health clinics, with 90+ kiosks deployed and zero critical post-deployment issues. I'm also experienced in Myanmar's banking sector, architecting core banking systems for KBZ, ABANK, CHDB, MWD, and AGD banks, covering accounts, loans, payments, general ledger, and ATM operations. I thrive under pressure, own delivery end-to-end, and continually bring improvement ideas to cross-functional teams while mentoring junior engineers and leading code reviews.…I'm Zin Mi Shein, a Senior Full Stack .NET Engineer with 11 years of delivering mission-critical systems for Singapore's government agencies, public hospitals, and leading banks. I have shipped production platforms including Singapore's Self-Payment Kiosk system across polyclinics, hospitals, and community health clinics, with 90+ kiosks deployed and zero critical post-deployment issues. I'm also experienced in Myanmar's banking sector, architecting core banking systems for KBZ, ABANK, CHDB, MWD, and AGD banks, covering accounts, loans, payments, general ledger, and ATM operations. I thrive under pressure, own delivery end-to-end, and continually bring improvement ideas to cross-functional teams while mentoring junior engineers and leading code reviews.

Available to hire

I’m Zin Mi Shein, a Senior Full Stack .NET Engineer with 11 years of delivering mission-critical systems for Singapore’s government agencies, public hospitals, and leading banks. I have shipped production platforms including Singapore’s Self-Payment Kiosk system across polyclinics, hospitals, and community health clinics, with 90+ kiosks deployed and zero critical post-deployment issues.

I’m also experienced in Myanmar’s banking sector, architecting core banking systems for KBZ, ABANK, CHDB, MWD, and AGD banks, covering accounts, loans, payments, general ledger, and ATM operations. I thrive under pressure, own delivery end-to-end, and continually bring improvement ideas to cross-functional teams while mentoring junior engineers and leading code reviews.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Burmese

Fluent

Work Experience

Software Engineer at ATT Systems Group Pte Ltd

July 1, 2021 - Present

Designed and led end-to-end delivery of 9 microservices on Windows Server, coordinating 3–5 engineers across the full SDLC—from requirements gathering and design to hardware device integration (Wincor/Glory, UPOS, barcode scanners, webcams, receipt printers). Implemented a real-time bidirectional SignalR WebSocket protocol between distributed kiosk clients and the server, consolidating bill retrieval, payment posting, and device orchestration into a single low-latency channel to boost responsiveness under concurrent load. Developed cash and cashless payments, automated settlement, and paperless email receipts using .NET Core, MVC, .NET Framework, Vue.js, JavaScript, JSON, CSS, RESTful APIs, HTML5, SQL Server 2022 and SQLite. Led Kiosk Management System dashboards for payments, automated settlements, top-ups, and discrepancy reporting to improve operational visibility. Deployed SSRS reports and SSL/IIS configurations on Windows Server for production readiness. Solely built the SHIP-

Web Developer (Full Stack) at Pioneers & Leaders (Publishers) Pte Ltd

June 1, 2019 - May 1, 2021

Developed and enhanced Winner21 Website, Admin Website, API, and Scrapers; maintained Git-based version control and deployment best practices. Maintained and supported a real-time horse racing platform (web, batch, AWS), providing L2/L3 production support, resolving live issues via log analysis, SQL debugging, and API validation for thousands of daily users. Supported mobile app releases and QA cycles (SIT/UAT/PRD), ensuring timely delivery and quality standards using C#, ASP.NET MVC, cshtml, JavaScript, jQuery, Bootstrap, CSS, HTML5, LINQ, Visual Studio 2019, SQL Server 2019. Successfully delivered 4 projects end-to-end on time, improving race data integration accuracy, reducing database query response times, and streamlining deployment and documentation to reduce post-release defects.

Senior Software Engineer at ACE Data System Co., Ltd (Leading Myanmar banking software vendor)

February 1, 2015 - April 1, 2019

Led architecture, hands-on development, and delivery of enterprise core banking systems for KBZ Bank, ABANK, CHD Bank, MWD (semi-government), and AGD Bank, supporting accounts opening, loans, payments, general ledger, and ATM operations. Solely designed and implemented the Payroll Import Salary Service for MWD Bank, automating salary processing for 1K+ employees, reducing manual effort by 80% and improving accuracy and reliability. Architected and delivered a scalable microfinance platform for INNO Microfinance, enabling 10+ branches and improving loan processing turnaround time. Provided L2/L3 production support and owned critical Day-End, Month-End, and Year-End financial processing; performed root cause analysis and fixes to achieve 100% batch accuracy and reduce processing time by 40% through SQL optimization.

Lead Developer - Kiosk Management System at ATT Systems Group Pte Ltd

July 1, 2021 - Present

Led development of a centralized admin portal for kiosk management using C#, ASP.NET MVC, .NET, Vue.js, SQL Server, and SSRS. Managed a team of 2–5 engineers, performed source controls, code reviews, and maintained documentation. Built dashboards for cash/card payments, automated settlement, collection, top-ups, EOD reconciliation, and discrepancy reporting to improve operational visibility across sites. Deployed SSRS reports and application components on Windows Server with IIS, SSL, enabling real-time monitoring and audit-ready reporting for finance and operations teams.

Senior Software Engineer - Automatic Collection System (ACS) at ATT Systems Group Pte Ltd

July 1, 2021 - Present

Developed government fine payment system integrating with regulatory systems for fine retrieval via barcode/manual entry. Led secure multi-channel payment system design (cash, card, cheque) with high availability, incorporating JWT, OAuth 2.0, and 2FA. Reduced average incident resolution time by ~40% through structured RCA documentation and reusable diagnostic runbooks for L2/L3 support; improved reliability via external integrations, Git discipline, and code reviews. Built SHIP-HATS 2.0 CI/CD pipeline deployed on AWS; implemented T-SQL batch processing and led vulnerability assessment remediation for security compliance. Managed SEED laptop provisioning and onboarding/offboarding aligned with GCC controls.

Senior Software Engineer at ACE Data System Co., Ltd

February 1, 2015 - April 1, 2019

Led architecture, development, and delivery of enterprise core banking systems for KBZ Bank, ABANK, CHD Bank, MWD, and AGD Bank; supported accounts opening, loans, payments, general ledger, and ATM operations. Designed Payroll Import Salary Service for MWD Bank, automating payroll for 1K+ employees and reducing manual effort by 80%. Architected scalable microfinance platform for INNO Microfinance; provided L2/L3 production support; owned Day-End/Month-End/Year-End processing, achieving 100% batch accuracy and 40% processing time improvements through SQL optimization.