# Himesh Gunathilake

> Software Engineer · Full-Stack Developer based in Galle, Southern Province, Sri Lanka. I turn complex requirements into reliable, maintainable, and scalable web, mobile, and backend products while exploring practical AI engineering.

https://himeshgunathilake.dev/ is an interactive 3D portfolio: visitors drive a car through a WebGPU world to reach each section. This file holds the same content as plain Markdown.

## About me

I’m a software engineer focused on full-stack architecture, mobile applications, backend systems, APIs, databases, and production software used in real-world environments. I enjoy improving existing codebases, debugging difficult issues, and designing systems that can grow over time.

- Name: Himesh Gunathilake
- Role: Software Engineer · Full-Stack Developer
- Based in: Galle, Southern Province, Sri Lanka
- Focus: Scalable web and mobile products · AI engineering

## Skills & tools

Full-stack work on the MERN stack and Laravel, a practical toolkit shaped by production work and independent projects, and ongoing exploration of AI-assisted engineering.

- Core stack: MongoDB, Express.js, React, Node.js, Laravel
- Web & mobile: Front-End Development, Web Development, React Native, Android Development, Responsive UI
- Backend & architecture: Backend Engineering, APIs, Databases, System Design, Software Architecture, Firebase
- 3D & emerging tech: Three.js, WebGPU, Rapier, AI Agents, Local LLMs, RAG, MCP

## Projects

- [Interactive Open-World Portfolio](https://github.com/HimeshGunathilaka/portfolio-car-game) (Three.js · WebGPU · Rapier · Vite): A playable, responsive portfolio built as a real-time 3D world. It combines vehicle physics, a day-and-night cycle, weather, wildlife, ambient events, quality presets, touch and gamepad input, accessible DOM interfaces, and data-driven portfolio districts.
- **Terra Watch** (Next.js · PostgreSQL + PostGIS · MapLibre): A map-first outdoor safety app for Sri Lanka. Hikers plan routes and see the known hazards along them, each with its source, severity, verification and age, combining official hazard feeds with community reports that members confirm or clear.
- [MemonaIQ](https://memonaiq.com) (Next.js · Prisma · Stripe): A suite of 17 focused web tools, from domain checks and image compression to invoicing. Each tool opens straight to its task, and nine run entirely in the browser without uploading what you give them.
- **System Analyzer** (Tauri · React · SwiftUI): A menu bar and system tray app for macOS, Windows and Linux that monitors CPU, memory, thermal, power, network, disk and processes, explains problems and helps recover from them, with an optional phone companion that locks the computer when you walk away.
- [Taskly](https://github.com/HimeshGunathilaka/Taskly): full-stack product · javascript · laravel blade
- [InstaGlide](https://github.com/HimeshGunathilaka/instaglide): mobile engineering · c++ · mobile platform code
- [VoteLanka](https://github.com/HimeshGunathilaka/votelanka): java application · java
- [Task List](https://github.com/HimeshGunathilaka/task_list): web application · javascript
- [Responsive Web](https://github.com/HimeshGunathilaka/responsive_web): responsive frontend · javascript · responsive ui
- [Vega Assessment](https://github.com/HimeshGunathilaka/vega_assesment): engineering assessment · javascript
- [TechGenie](https://github.com/HimeshGunathilaka/techgenie.io): smart-device concept · html · product concept

## Experience

- **Associate Software Engineer** (Rightmo Web Solution · Full-time · Nov 2025 – Present): On-site · Galle, Southern Province, Sri Lanka
- **Software Engineering Trainee** (Rightmo Web Solution · Full-time · Mar 2025 – Nov 2025): On-site
- **Professional Freelancer** (Self-employed · Part-time · Apr 2023 – Present): Independent software development alongside full-time engineering roles.
- **Software Engineer** (Loopy Holdings · Full-time · Feb 2024 – Mar 2025): Hybrid · Galle, Southern Province, Sri Lanka
- **Software Engineer Intern** (Cosmosforge Technologies · Full-time · Dec 2022 – Dec 2023): Hybrid · Galle, Southern Province, Sri Lanka

## Education

- **Higher National Diploma in Software Engineering** (National Institute of Business Management (NIBM – Sri Lanka) · 2020 – 2023): Computer Software Engineering · Grade 3.6
- **Diploma in Computer Hardware and Networking** (ESOFT Metro Campus · Aug 2019 – Jul 2020): Information Technology

## Contact

- [Gmail](mailto:himeshgunathilaka99@gmail.com)
- [YouTube](https://www.youtube.com/@slblackmamba)
- [LinkedIn](https://www.linkedin.com/in/himeshgunathilake/)
- [Facebook](https://www.facebook.com/kavinda.himesh.9)
- [GitHub](https://github.com/HimeshGunathilaka)