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I'm Nay Aung Lwin, a full-stack developer and founder of ToolExtra, building a multi-tool SaaS platform as a solo technical founder, implementing 23 tools to date, with a three-layer architecture using Next.js and TypeScript and an AWS backend. Based in Bangkok, Thailand, I'm open to remote or on-site roles worldwide. I recently graduated with a Bachelor of Computer Science from the University of Wollongong and have freelance experience shipping production web apps and AI-integrated tools.…I'm Nay Aung Lwin, a full-stack developer and founder of ToolExtra, building a multi-tool SaaS platform as a solo technical founder, implementing 23 tools to date, with a three-layer architecture using Next.js and TypeScript and an AWS backend. Based in Bangkok, Thailand, I'm open to remote or on-site roles worldwide. I recently graduated with a Bachelor of Computer Science from the University of Wollongong and have freelance experience shipping production web apps and AI-integrated tools.

Nay Aung Lwin

Full Stack Developer, Web Developer, Front-End Developer, +2

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I'm Nay Aung Lwin, a full-stack developer and founder of ToolExtra, building a multi-tool SaaS platform as a solo technical founder, implementing 23 tools to date, with a three-layer architecture using Next.js and TypeScript and an AWS backend. Based in Bangkok, Thailand, I'm open to remote or on-site roles worldwide. I recently graduated with a Bachelor of Computer Science from the University of Wollongong and have freelance experience shipping production web apps and AI-integrated tools.…I'm Nay Aung Lwin, a full-stack developer and founder of ToolExtra, building a multi-tool SaaS platform as a solo technical founder, implementing 23 tools to date, with a three-layer architecture using Next.js and TypeScript and an AWS backend. Based in Bangkok, Thailand, I'm open to remote or on-site roles worldwide. I recently graduated with a Bachelor of Computer Science from the University of Wollongong and have freelance experience shipping production web apps and AI-integrated tools.

Available to hire

I’m Nay Aung Lwin, a full-stack developer and founder of ToolExtra, building a multi-tool SaaS platform as a solo technical founder, implementing 23 tools to date, with a three-layer architecture using Next.js and TypeScript and an AWS backend.

Based in Bangkok, Thailand, I’m open to remote or on-site roles worldwide. I recently graduated with a Bachelor of Computer Science from the University of Wollongong and have freelance experience shipping production web apps and AI-integrated tools.

Skills

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Work Experience

Founder & Full Stack Developer at ToolExtra

August 1, 2025 - Present

Built a multi-tool SaaS platform as sole technical founder; implemented 23 tools to date, following a three-layer architecture in Next.js and TypeScript with an AWS backend. Designed and deployed a serverless AWS backend: API Gateway with custom domain, Lambda JWT authorizer with Supabase, CORS and IP whitelisting, and S3 lifecycle rules, provisioned via CDK. Set up full production end-to-end, including domain, DNS, SSL via ACM, and Vercel deployment, with no prior DevOps experience.

Freelance Full Stack Developer at Nexus Nova (NFC Profile Editor)

October 1, 2024 - May 1, 2025

Designed and implemented a drag-and-drop card builder that lets users create and customize digital and physical NFC profile assets. Developed a dynamic theme engine and layout management system for deep personalization with real-time visual feedback. Iterated frontend architecture based on client feedback to improve UI responsiveness and brand alignment.

Full Stack Developer at Askvox (AI Gaming Assistant)

September 1, 2024 - February 1, 2025

Built a low-latency, voice-activated desktop overlay using Meta-LLaMA 3.3 for real-time in-game interaction. Integrated Google Speech-to-Text and Text-to-Speech APIs for hands-free command processing. Fine-tuned LLaMA 3.3 on domain-specific data sets to improve contextual accuracy for gaming queries.

Full Stack Developer at Used Car Management System

September 1, 2024 - December 1, 2024

Built a vehicle management platform with complex filtering, automated loan calculations, and multi-tier role dashboards. Designed a PostgreSQL schema for inventory, users, and transaction records. Implemented NextAuth authentication and a UI using Tailwind CSS frontend.