Hire the Best Unity Developers
in Vietnam

I'm a developer with experience in creating and building PC, mobile, and VR games with Unity Game Engine + I'm experienced in C# and CG Shader Program. + I can fully project manage your brief from start to finish. + Communication is a key to success, so let's keep in touch while we are working together!

About me and my skills: - Experienced in both teamwork and solo projects. - 14 years of experience in game development (Unity and C#), including 7 years at a game company in Japan. - Extensive knowledge and experience in various game genres: + Created an open-world FPS RPG game. + Created a crypto ARPG game. + Created an avatar maker game. + Developed AR projects like a virtual pet game, a pet-catching game similar to Pokémon GO, and a virtual agent app. + Built a VR 360 movie app and several VR games. + Created over 10 casual games. - Proficient with Git, Trello, and Asana. - Familiar with Vuforia. - Strong skills in game logic, UI building, animations, and effects using tools like Tween, Animation Clip, and Timeline Editor. - Experienced in Social platform SDK integration, Ad integration, In-app purchases, Leaderboards, and App publishing. - Experienced with Mapbox. - Skilled in audio editing/creation using Audacity. - Proficient in Photoshop for texture editing/creation. - Capable of video editing/creation using Final Cut Pro. - Skilled in creating trailers and in-game cutscenes, with all trailers and movies for Gun vs Gods made by me. If you hire me: - I always use the Upwork Desktop App to record work hours, with no manual time. - Startup time (time spent setting up the project and understanding requirements) will not be billed. - I have a MacBook Pro, allowing me to build your game for macOS and iOS. - I own both Android and iPhone devices for testing mobile games. - I have Meta Quest 3S for testing VR projects. - I am available to work on weekends and can work overtime if needed. - I have a library of ready-made code and tools created by me, which can be utilized in your project. For instance, my "Google Sheet to JSON" tool ranks #5 in Google Spreadsheet tools and #12 in JSON tools on the Unity Asset Store.

𝗛𝗶, 𝗜’𝗺 𝗦𝗮𝗻𝗴 𝗡𝗴𝘂𝘆𝗲𝗻 - 𝗮 𝗦𝗲𝗻𝗶𝗼𝗿 𝗨𝗻𝗶𝘁𝘆 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝟴+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗴𝗮𝗺𝗲 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗳𝗼𝗿 𝗺𝗼𝗯𝗶𝗹𝗲, 𝗣𝗖 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀 𝗮𝗻𝗱 𝗺𝘂𝗹𝘁𝗶𝗽𝗹𝗮𝘆𝗲𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁𝘀.. 🚀𝗦𝘆𝘀𝘁𝗲𝗺𝘀-𝗙𝗶𝗿𝘀𝘁 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲 I help teams build complex game logic without creating technical debt. From designing modular core systems to implementing high-performance multiplayer architectures using Photon Fusion (State Sync, Client-Side Prediction, and Lag Compensation). 🧠 𝗛𝗼𝘄 𝗜 𝗪𝗼𝗿𝗸 My work focuses on clean architecture, practical SOLID principles, and maintainable codebases that support both fast iteration and long-term development. 🛠️ **𝗪𝗵𝗮𝘁 𝗜 𝗕𝗿𝗶𝗻𝗴 𝘁𝗼 𝗬𝗼𝘂𝗿 𝗣𝗿𝗼𝗷𝗲𝗰𝘁** • Unity development for 2D & 3D games (Match-3, Casual, Simulation) • Advanced Multiplayer Implementation: Specialized in Photon Fusion • Rapid prototyping with a clear path to production • Clean, readable C# code using MVC / modular architecture • Performance optimization (memory profiling, texture atlasing, UI optimization) • Custom Unity editor tools to improve team and content workflow 📦 𝗣𝗿𝗼𝗷𝗲𝗰𝘁 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 I’ve contributed to 10+ commercial game projects, working closely with designers, artists, and backend teams to deliver reliable builds that are easy to maintain and extend. 🤝 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗦𝘁𝘆𝗹𝗲 I value clear communication, realistic timelines, and code quality that holds up even after handoff. 🎯 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁 𝗜𝗳 𝗬𝗼𝘂 𝗡𝗲𝗲𝗱 A senior Unity developer who can architect robust game systems, craft deep mechanics, and build scalable foundations for long-term production. 𝗖𝗹𝗶𝗲𝗻𝘁 𝗧𝗲𝘀𝘁𝗶𝗺𝗼𝗻𝗶𝗮𝗹𝘀 ❤️‍🔥"I hired Sang back in November for rapid prototyping, and he was excellent right out of the gate. When I moved into building the full game and all the underlying systems, I brought him on for that as well, and he’s been outstanding. He really knows Unity at a high level, especially on the systems side. He handles complex work with confidence, learns quickly, and consistently steps up to tough challenges instead of avoiding them. On top of that, he’s a pleasure to work with. Polite, reliable, strong work ethic, and always ready to go. I trusted my gut when I chose Sang from a strong group of candidates, and I have zero regrets. It was the right decision. I highly recommend him to anyone looking for a skilled and dependable developer." — David Eagle

Unity Developer with 5+ years in full-cycle development of mobile games (Hyper-Casual, Hybrid-Casual, Simulation). Specialized in gameplay systems, monetization (Ads/IAP), and performance optimization. Proven track record of launching successful titles on Google Play.

I help turn Unity prototypes into polished, optimized games for Mobile, with a specific focus on Casual, Hyper-casual, and Hybrid-casual titles (especially Puzzle games). I focus heavily on game feel - responsive controls, smooth transitions, satisfying feedback, and polished interactions that make gameplay feel great. I’ve worked on various mobile projects, covering everything from core gameplay systems and UI flow to optimization and store integration. What I can help with: - Specializing in Mobile Puzzle & Casual mechanics - Game polish: Improving game feel, feedback, and juice for a better player experience - UI/UX implementation: Building clean, functional screens for mobile - Bug fixing and optimization: Keeping performance smooth across all mobile devices Unity services integration: Google Play Services, Cloud Save, Leaderboards, and Ads, IAP - Scalable gameplay systems: Clean code and structure for mobile-first development I care deeply about performance - optimizing draw calls, UI canvases, and logic to ensure games run perfectly on mobile hardware. Whether you need help finishing a puzzle prototype, polishing your core loop, or building systems from scratch, I’m ready to jump in and move your project forward. Send me a message with your project details - I’d be happy to discuss it!

Need a senior Unity developer to build, improve, or scale a VR, multiplayer, or mobile game? I’m a Unity Technical Lead with 9+ years of professional game-development experience. I build production-ready games and interactive applications using Unity and C#, with particular expertise in VR, Meta Quest, multiplayer networking, gameplay architecture, performance optimization, and backend integration. My experience includes: • Unity and C# game development • VR and Meta Quest applications • Multiplayer systems with Photon Fusion • Mobile game development for Android and iOS • PlayFab, Firebase, REST APIs, and live-game services • Microsoft Azure server deployment • CI/CD pipelines and automated builds • Game architecture, code reviews, and technical leadership • Performance profiling and optimization • Mentoring developers and coordinating technical delivery I have contributed to projects including Shmackle, PipeFlare Games, Pyro Mining Rush, EyeClick Interactive Games, Art Story, and Color Island: Pixel Art. Currently, I work as a Technical Lead at CurlyBlue, where I guide development decisions, review code, support team members, and help deliver stable, maintainable game systems. I can help you: • Build a Unity game or prototype from the ground up • Develop or troubleshoot VR and Meta Quest experiences • Implement multiplayer gameplay • Improve an existing Unity codebase • Fix performance, architecture, or deployment problems • Set up backend services, Azure infrastructure, and CI/CD If you need an experienced Unity developer who can both implement features and lead technical delivery, let’s discuss your project.