Himesh Gunathilake · Software Engineer · Full-Stack Developer · Galle, Sri Lanka
I turn complex requirements into reliable, maintainable, and scalable web, mobile, and backend products while exploring practical AI engineering.
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.
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.
Selected engineering work, beginning with the experience you are exploring now.
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.
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.
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.
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.
Rightmo Web Solution · Full-time · Nov 2025 – Present
On-site · Galle, Southern Province, Sri Lanka
Rightmo Web Solution · Full-time · Mar 2025 – Nov 2025
On-site
Self-employed · Part-time · Apr 2023 – Present
Independent software development alongside full-time engineering roles.
Loopy Holdings · Full-time · Feb 2024 – Mar 2025
Hybrid · Galle, Southern Province, Sri Lanka
Cosmosforge Technologies · Full-time · Dec 2022 – Dec 2023
Hybrid · Galle, Southern Province, Sri Lanka
National Institute of Business Management (NIBM – Sri Lanka) · 2020 – 2023
Computer Software Engineering · Grade 3.6
ESOFT Metro Campus · Aug 2019 – Jul 2020
Information Technology
This page is an interactive 3D world rendered with WebGPU. The same portfolio is available as Markdown at llms.txt.
This driving experience needs a wider screen. Turn your phone sideways to continue.
Interactive portfolio
Loading the world…
Welcome!
My name is Himesh Gunathilake, and I’m a software engineer and full-stack developer building scalable web and mobile products.
Drive around to explore my experience, skills, education, work, and current journey into AI engineering.
And don't break anything!
| WASD or ARROWS | Move around |
| SHIFT | Boost |
| CTRL LEFT or B | Brake |
| SPACE | Jump |
| ENTER | Interact |
| M | Map |
| L | Mute |
| T | Post a whisper |
| R | Respawn |
| NUM KEYS/NUM PAD | Activate hydraulics |
| LEFT CLICK (DRAG) | Move camera |
| H | Honk |
| ◀ ▶ | Steer (slide between them) |
| Right pedal | Accelerate |
| Left pedal | Brake / reverse |
| Flame | Nitro boost |
| Arrow | Hop |
| One finger | Drag on the world to drive |
| Two fingers | Move camera / zoom |
| Tap (on the car) | Jump |
| Boost | |
| Jump | |
| Brake | |
| Interact / Exit | |
| Accelerate | |
| Backward accelerate | |
| Hydraulics | |
| Joystick Left | Turn wheels |
| Joystick Left (press) | Honk |
| Joystick Right | Move camera |
| Joystick Right (press) | Zoom in/out |
| Select | Reset |
| Start | Pause |
Server currently offline. Scores can't be saved.
The online leaderboard isn't available in this version. Race for your personal best!
Resets in
Whispers are messages left by visitors.
- Everyone can see them
- New whispers remove old ones (max 30)
- One whisper per user
- Choose a flag
- No slur!
- Max 30 characters
Server currently offline
Whispers aren't available in this version.
Thank you for visiting my portfolio!
If you are curious about the stack and how this project works, here’s everything you need to know.
This world was designed and created by Bruno Simon (website, X, GitHub) for his 2025 portfolio.
He open-sourced the original project under the MIT license, and my version is built on it. Thank you, Bruno, for such an amazing project!
Three.js is the library I’m using to render this 3D world.
It was created by mr.doob (X, GitHub), followed by hundreds of awesome developers, one of which being Sunag (X, GitHub) who added TSL, enabling the use of both WebGL and WebGPU, making this portfolio possible.
My version of the portfolio is available on GitHub under the MIT license, keeping Bruno Simon’s original copyright notice.
The music you hear is by the awesome Kounine (Linktree), released under the CC0 license.
— Himesh
Server currently offline. Scores can't be saved.
The online leaderboard isn't available in this version.
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