Hi! I’m Piyarach Tamwattanagul
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<aside> <img src="/icons/arrow-right_gray.svg" alt="/icons/arrow-right_gray.svg" width="40px" /> BSc (Computer Science)
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<aside> <img src="/icons/arrow-right_gray.svg" alt="/icons/arrow-right_gray.svg" width="40px" /> Availability: Remote B2B Contract / Freelance
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<aside> <img src="/icons/arrow-right_gray.svg" alt="/icons/arrow-right_gray.svg" width="40px" /> Languages:
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<aside> <img src="/icons/arrow-right_gray.svg" alt="/icons/arrow-right_gray.svg" width="40px" /> Timezone: UTC+7
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Simulation
Educational Simulators
Historical City Builders
Strategy
Rich Story RPG
JRPG
Indie
Survival
Reading Books
Playing Games
Travel & Hiking
Listening Music
Watching Historical Podcasts
I am a veteran game programmer with 15 years of industry experience, including more than 10 years specializing in the Unity Engine. From early low-level console engineering for the Nintendo Wii and 3DS to building complex VR hardware simulations, my career is driven by a lifelong, deeply rooted passion for both playing and creating games.
I am a highly adaptable, self-driven problem solver who thrives on learning new systems and building scalable architecture from the ground up. I do not fear massive architectural constraints; instead, I use them to engineer elegant gameplay loops and deep simulation mechanics that simply work.
Ultimately, I am a stubborn dreamer deeply passionate about bridging the gap between complex simulation systems and real-world utility. I build robust technology that leaves a lasting impact—from commercial entertainment to modernizing educational systems. "I don't fear a challenge—I fear not having one."
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Solo Engine Architecture | Dawn of Happiness Independent Project (2026)
Currently developing a systems-driven historical city-builder set in ancient Thailand. As the sole developer and architect, I am responsible for the entire technical pipeline, from core gameplay logic to memory optimization.
Key Engineering Highlights:
<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Unity Senior Developer Abstract Wings | Contract (2023 - 2025)
<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Unity Senior Developer Revelopment Studio | Contract (2022 - 2023)
Working as an Unity Senior Developer here, worked on web-based Unity titles integrating complex cryptocurrency economies. Focused heavily on WebGL performance optimization and secure backend communication to ensure a seamless browser experience.
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Special Lecturer (Game Development with Unity) (2018 - 2022)
Delivered advanced university-level lectures on Unity Engine architecture and core game development paradigms. Mentored aspiring programmers, translating complex systems engineering into clear, actionable academic curriculum.
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Unity Developer Freelancer Self Employed (2016 - 2022)
Working as a Unity developer freelancer. Worked on complex R&D prototypes and simulations for advanced university research programs. Spearheaded custom hardware integration, bridging physical peripherals and real-time sensor data with Unity environments to drive highly immersive user experiences.
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Unity Game Developer Abstract Wings | Full-Time (2011 - 2016)
Working as an Unity game developer here, worked on titles for specialized arcade platform products. Autonomously mastered the Unity Engine from the ground up to build robust gameplay systems and optimize game loops for custom local hardware constraints.
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Mobile Game Developer CASA W Production | Full-Time (2011)
Working as mobile game developer here , Worked with commercial titles for iOS and executed the technical migration of existing iOS architectures to the Android ecosystem. Ensured optimal performance, stability, and compatibility across highly fragmented mobile hardware.
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<aside> <img src="/icons/tortoise_gray.svg" alt="/icons/tortoise_gray.svg" width="40px" /> Console Game Developer UFO Studio Asia | Full-Time (2010 - 2011)
Working as a junior game developer and system engineering. Worked for commercial releases on the Nintendo Wii and 3DS. Additionally, architected a proprietary 2D game engine using XNA to successfully port iOS titles to the Windows Phone ecosystem.
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