Zaw Min Thein
Lead Full-Stack System Engineer
Lead Full-Stack System Engineer crafting production-grade web applications. I turn complex requirements into clean, scalable software while leading technical teams and owning architectural decisions at 株式会社ONE TERRACE in Akita, Japan.
What I Do Best
Core Skills
Front-End Development
- Next.js / React.js
- TypeScript / JavaScript
- Tailwind CSS
- Responsive UI Design
- Component Architecture
Back-End & APIs
- Node.js / Nest.js / Express.js
- Java Spring Boot
- PHP / Laravel
- Python / FastAPI / Django
- REST APIs / tRPC
- PostgreSQL / MySQL / Redis
Cloud & Infrastructure
- Amazon Web Services (AWS)
- Google Cloud Platform (GCP)
- Sakura Server
- CI/CD Pipelines
- Docker / Server Deployment
Tools & Practices
- Git / GitHub
- Stripe Payment Integration
- Prisma ORM
- Agile / Project Leadership
- Code Review & Mentorship
Who I Am
About Me
Shipped a production booking platform in 30 days with zero post-launch security incidents — one example of 5+ years delivering production-grade web applications across TypeScript, Java, Python, and PHP. Leading teams of up to 8 engineers while staying hands-on, owning architecture decisions, CI/CD pipelines, and cloud infrastructure on AWS and GCP.
I specialise in delivering high-quality, scalable solutions using Next.js, Node.js, and Java Spring Boot — paired with cloud deployment on AWS and GCP. Known for delivering under pressure, mentoring teams through rigorous code reviews, and turning complex requirements into clean, scalable software.
When not shipping features, I enjoy helping others and sharing knowledge — a value rooted in my time leading the UCSMTC technology committee at UCSM.
Languages
Certifications
Where I Worked
Work Experience
Lead Full-Stack System Engineer
- ›One Moment Booking Platform: Led rapid full-stack development, delivering the complete product under a critical 30-day deadline with zero security incidents post-launch.
- ›Integrated sophisticated Stripe payment logic for fund management, payment holds, and automated refunds; processed transactions with 99.9% uptime on AWS ECS and RDS.
- ›Quick Sign (Enterprise E-Signature Platform): Led a team of 8 to build a tRPC-powered PDF automation pipeline, eliminating manual document handling and cutting turnaround time by 60%.
- ›Architected scalable cloud infrastructure on AWS S3, ECS, and ECR ensuring 99.9% uptime and document integrity.
- ›Web Development & Infrastructure: Delivered a promotional Astro website within a 5-day deadline; engineered pixel-perfect UI from Figma for a Next.js recruitment platform.
- ›Tokumane Migrant Worker Management: Co-led security improvements for Spring Microservice, Redis, and .NET systems — identified and patched 100+ critical vulnerabilities.
- ›Implemented CI/CD pipelines to Sakura/Onamae Servers and architected serverless email infrastructure using AWS Lambda and SES.
System Engineer
- ›Online Learning Management System (Pyinnyar-Subuu): Spearheaded development of a comprehensive LMS with a team of 6 using Java Spring Boot and PostgreSQL.
- ›Employee Evaluation System: Developed and deployed using Node.js and Prisma; ensured smooth server deployment and maintenance.
- ›Call Center Management System: Successfully led the handover and subsequent optimization, implementing ongoing maintenance and performance enhancements.
Academic Background
Education
Bachelor of Science in Computer Science (BS-CS)
2022 — 2024Graduated with Cum Laude honors in 2024. Completed degree while working full-time as a Systems Engineer. Relevant coursework: Data Structures, Algorithms, Software Engineering, Database Systems.
Bachelor of Computer Science (Transferred)
2017 — 2020Led the UCSM Technology Committee (UCSMTC), organizing knowledge-sharing events; competed in ICPC; participated in TF-SCALE leadership exchange with Singapore Polytechnic.
What I Have Built
Featured Projects
Virtual Career
Developed a robust scheduling system for users to book and coordinate meetings with other users seamlessly on the platform.
One Moment
Built a mall-style reservation management system acting as a platform to connect general users with services (experiences/locations) offered by multiple businesses.
Katakata
Developed a system leveraging AI (OCR & NLP) to automatically extract pricing information from catalogs into a database, vastly improving searchability and reducing manual entry work.
Quick Sign
A system that streamlines procedures through electronic signatures. Optimized business operations by enabling rapid and accurate document processing.
Candidate Management System
Designed and developed a system enabling job seekers to search and apply for jobs. Handled the entire lifecycle from frontend to backend and AWS deployment.
Saison Japanese Learning Website
Constructed and operated a website aimed at providing comprehensive service information for Japanese language learning.
Get In Touch
Let's Connect
I am open to new opportunities and collaborations. Whether you have a project in mind or just want to say hello — my inbox is always open.