Senior full-stack software engineer

I design, modernize, and ship secure web and mobile platforms.

Senior Full-Stack Engineer with 5+ years of experience building and supporting business-critical web applications across Myanmar, Singapore, and Thailand. Skilled in Laravel/PHP, React, Next.js, Node.js, NestJS, and TypeScript across fintech, automotive, healthcare, government, and telecommunications.

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Work preferenceRemote and international opportunities

Primary stackNode.js, NestJS, Laravel, Next.js

Best fitTeams that need full-cycle product and platform delivery

Owns delivery from business requirement mapping and task estimation through release
Experienced with secure APIs, local and international payments, code reviews, and risk checks
Supports seamless releases and production reliability with monitoring, error tracking, and troubleshooting

5+ yearsFull-stack engineering and software delivery

6 rolesFull-time, contract, volunteer, and intern work

5 sectorsFintech, automotive, healthcare, government, and telecom

3 countriesDelivery across Myanmar, Singapore, and Thailand

About

Built for teams that need execution, ownership, and calm delivery.

I translate business requirements into secure, maintainable solutions, integrate local and international payment systems, collaborate with cross-functional teams, and support reliable production operations.

Over the last 5+ years, I have delivered business applications across Myanmar, Singapore, and Thailand for fintech, automotive, healthcare, government, and telecom teams.

I take features from planning to production: shaping the interface, building secure APIs, handling data concerns, integrating local and international payments or third-party services, and supporting deployment, monitoring, and troubleshooting after release.

WANT TO DIG DEEPER?

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Capabilities

What I can own across a product team.

Core technologies

Building full-stack business applications across backend, frontend, databases, mobile, and CMS platforms.

Backend: Node.js, NestJS, Laravel (PHP), REST APIs, GraphQL
Frontend: JavaScript, TypeScript, React, Next.js, Tailwind CSS, Bootstrap
Databases: MySQL, PostgreSQL, MongoDB
Mobile and CMS: React Native, Cordova, WordPress

DevOps and infrastructure

Designing distributed systems and supporting dependable cloud delivery and production operations.

Architecture: Microservices and distributed systems
Tools: Docker, CI/CD, Nginx, Apache, Git
Cloud: AWS, DigitalOcean, R2 Cloud Storage
Monitoring: Datadog

Development practices and delivery

Taking products from business requirements to release while protecting technical quality and reliability.

Business analysis and delivery: Requirements gathering, stakeholder communication, task estimation, and full-cycle delivery
Engineering quality: System design, secure APIs, code reviews, testing, documentation, and risk assessment
Team collaboration: Cross-functional coordination, clear technical communication, and structured Git workflows
Release and operations: CI/CD coordination, monitoring, incident troubleshooting, and production support

Core toolbelt

Current stack I reach for most often

Node.jsNestJSLaravelREST APIsGraphQLNext.jsReactTypeScriptPostgreSQLMongoDBMySQLAWSDigitalOceanR2 Cloud StorageDockerNginxDatadogCI/CD

Experience

Career path across production web, mobile, and platform systems.

Feb 2025 - Aug 2026

Senior Full-Stack Software Engineer (Contract)

Siam Mandalar InternationalThailand / Remote

Built jpauctionsheet.com with Laravel and Blade from business planning through production release for 1,550+ registered users, integrating third-party vehicle-report APIs, credit management, and KBZPay, Stripe, and PayPal payments.
Delivered autovinhub.com with Next.js, NestJS, and TypeScript, including OCR-based VIN scanning, external report APIs, online payments, and automated report delivery.
Designed multi-currency credit purchases, refund workflows, promotional pricing, audit logs, and secure digital-report delivery across both platforms.
Applied structured testing, code review, audit controls, deployment checks, and production troubleshooting to support reliable releases.
Worked directly with business stakeholders to clarify requirements, prioritize features, estimate work, and improve releases using user feedback.

Selected work

Case studies that show product thinking, not just screenshots.

Full-time work

SDAX

Supported a regulated digital assets platform during its move from Java Spring WebFlux to an Express.js and Next.js stack.

Helped move platform functionality toward a modern Node.js and Next.js stack.
Maintained mission-critical admin and user-facing surfaces in a production fintech environment.

Next.jsExpress.jsTypeScriptJava Spring

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Client project

AutoVinHub

Developed a Next.js and TypeScript VIN report platform connected to NestJS APIs for paid vehicle history workflows.

Enabled OCR-based VIN image scanning, third-party report reseller access, Stripe and PayPal payments, and automated report delivery.
Connected the Next.js frontend to NestJS APIs for credit purchasing, refunds, promotional pricing, and account workflows.

Next.jsTypeScriptNestJSStripe

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Client project

Little Myanmar

Built a Laravel-based restaurant platform that supports flexible menus, guest checkout, and Stripe payments.

Handled restaurant and catering menu logic inside one coherent ordering experience.
Supported guest and member checkout with secure Stripe payment integration.

LaravelPHPjQueryStripe

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Client project

JP Auction Sheet

Built a Laravel-based vehicle history platform with VIN checking, dashboards, OTP authentication, report generation, and multiple payment methods.

Released the platform to more than 1,550 registered users.
Integrated global and local payment options including Stripe, PayPal, and KBZ Pay.

LaravelPHPOTP authStripe

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Client project

Yun Home Renovation

Built a renovation company website in Next.js and TypeScript with an emphasis on speed, SEO, and premium presentation.

Delivered a clean lead-generation website with strong visual presentation.
Optimized for performance and SEO to support discoverability and trust.

Next.jsTypeScriptTailwind CSSSEO

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Full-time work

Viabells

Built a professional corporate website in Next.js with a presentation style suited to a Singapore-based business.

Delivered a polished, brand-aligned corporate web presence.
Used server-rendered delivery patterns to support performance and SEO.

Next.jsMaterial UIReactSSR

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Full-time work

A.M Skincare

Developed a bespoke WordPress and PHP implementation with custom theme and plugin work for a skincare brand.

Delivered a custom storefront and brand experience tailored to the client.
Implemented theme and plugin work to support features beyond a default setup.

WordPressPHPCustom pluginsJavaScript

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Freelance project

Pinkpop POS

Engineered a fully customized, real-time POS and inventory management ecosystem to streamline daily retail operations.

Delivered a real-time cashier checkout terminal with barcode integration and custom discount logic.
Built a complete inventory lifecycle tracking system with low-stock alerts, transfers, and adjustments.

LaravelReactInertia.jsTailwind CSS

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Contact

Hiring, freelance work, and recruiter outreach are all welcome.

Direct contact

Zay Lin Htet

If you are hiring for a full-stack engineer who can contribute across product, backend, frontend, and infrastructure, send me a note. I am especially interested in roles that need end-to-end ownership across requirements, architecture, delivery, and production operations.

[email protected]

+95 9795927748