Say Hi from Zin Oo,
Senior Full-Stack Software Engineer
Senior Full-Stack Engineer with 8+ years of expertise architecting high-concurrency enterprise systems (ERP/POS), scalable platforms, and modern cloud web applications that drive real business impact.
Crafting Full-Stack Code with Purpose & Precision
Specializing in high-performance enterprise systems and modern web architectures across the JavaScript/TypeScript (React, Next.js, Node, NestJS) and PHP / Laravel ecosystems. Proven track record turning complex business workflows into resilient, scalable, production-ready applications.
Professional Career Journey
Senior Full-Stack Software Engineer
WTC Technology
Architected and developed enterprise-grade POS, ERP systems, Travel platforms, Hotel Management Systems, and specialized Billiards ERP software. Engineered high-concurrency web apps combining Laravel, Filament Admin, Inertia.js, Alpine.js, React, Next.js, TypeScript, NestJS with MySQL, PostgreSQL, MongoDB, and AWS cloud deployments.
Freelance Senior Full-Stack Consultant
Independent Practice • Global & Local Clients
Delivered custom full-stack solutions for startups and enterprise clients, building modern web apps leveraging dual mastery in PHP Laravel (Filament, Inertia.js) and the JavaScript Ecosystem (React.js, Next.js, TypeScript, Node.js, NestJS).
Software Developer & Technical Instructor
AIMT Institute
Led software development for Multi-Vendor E-Commerce websites, POS systems, and Learning Management Platforms. Mentored student developers, delivered technical instruction, and supervised real-world project builds.
Web Developer
Fairway Technology
Developed custom WordPress themes, plugins, and web applications using JavaScript, jQuery, PHP, and Laravel. Delivered end-to-end web solutions including Hospital Management Systems, Job/Career Portals, and Real Estate Property platforms.
Enterprise Services & Solutions
Enterprise ERP & POS Systems
Custom POS systems, Hotel & Hospital Management software, and specialized Billiards Club ERPs engineered using Laravel, Filament Admin, Inertia.js, and relational databases.
Modern Full-Stack Applications
Building fast, reactive web apps with equal fluency in JS (React, Next.js, TypeScript, Node, NestJS) and PHP (Laravel, Inertia.js, Alpine.js) hosted on AWS.
Multi-Vendor E-Commerce
Scalable e-commerce marketplaces, travel & tourism booking engines, and custom PHP/Laravel web applications built with robust backend logic and API design.
Custom WordPress Ecosystems
Tailor-made WordPress themes and plugins for healthcare portals, real estate listings, learning platforms, and recruitment networks.
My Technical Arsenal
Featured Projects
Enterprise ERP & Business Operations Platform
A robust, multi-module Enterprise Resource Planning (ERP) system integrating financial accounting & treasury forecasting, multi-warehouse supply chain inventory, procurement & purchase orders, manufacturing & production planning (BOM), CRM pipelines, HR payroll, and automated multi-tier approval workflows with real-time KPI analytics.
Billiards Club ERP & Business Operations Suite
A mission-critical Enterprise Resource Planning & POS platform engineered for commercial billiard clubs and entertainment venues. Features real-time table state & session timers, automated tiered hourly billing, advanced reservation scheduling calendar, integrated HR attendance & payroll, CCTV security audit logging, and real-time revenue analytics dashboards.
ShopPulse - Enterprise Microservices E-Commerce Engine
A distributed, event-driven B2B2C e-commerce platform orchestrated across 14 NestJS microservices with gRPC streaming and BullMQ queues. Features multi-tenant vendor storefronts, real-time inventory synchronization, sub-second checkout, automated fraud velocity scoring, OLS ML revenue forecasting, Elasticsearch faceted search, and live stock telemetry.
Abc AI - Production-Grade AI Engineering Guide
An open-access AI engineering hub designed for developers to master production AI architectures, including Web-scale Data Deduplication, QLoRA rank math, Multi-Agent Graphs, and high-throughput vLLM serving.
GoStep - Enterprise System Design & Microservices Platform
Master enterprise-scale system design with interactive simulators and real-world case studies. A structured path from monolith to event-driven microservices.
Easy gRPC - Visual API Studio & Testing Playground
A visual gRPC API builder and microservices testing playground enabling developers to craft Protobuf schemas, test RPC calls, and inspect live responses effortlessly.
Free Countries API & Global Data Explorer
An open-source global country dataset and REST API portal featuring an interactive data explorer, flags, population metrics, and capital city endpoints for developer integration.
Easy GraphQL - Schema Visualizer & Query Builder
An interactive GraphQL schema visualizer and query builder providing real-time schema node graphs, mutation playgrounds, and visual relationship mapping.
Learn PRD - Interactive Product Requirement Guide
An interactive Product Requirement Document (PRD) standards platform empowering developers and Product Managers to master engineering specifications, user flows, and product checklists.
Let's Work Together!
Have a project in mind or looking to hire a Full-Stack Software Engineer? Send me a message and let's create something extraordinary.