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I'm a game developer and full-stack engineer with 7+ years shipping VR, mobile, and WebGL titles end to end, from gameplay and XR interaction to live cloud backends on Firebase and Google Cloud. I’ve built and led delivery for clients across Qatar, Saudi Arabia, and the United States, spanning in-house engine frameworks, AI-driven features, Web3 economies, and real-time multiplayer. I thrive on turning ambitious ideas into polished experiences, collaborating across disciplines, and delivering robust, scalable tech stacks that power engaging gameplay and dynamic cloud services.…I'm a game developer and full-stack engineer with 7+ years shipping VR, mobile, and WebGL titles end to end, from gameplay and XR interaction to live cloud backends on Firebase and Google Cloud. I’ve built and led delivery for clients across Qatar, Saudi Arabia, and the United States, spanning in-house engine frameworks, AI-driven features, Web3 economies, and real-time multiplayer. I thrive on turning ambitious ideas into polished experiences, collaborating across disciplines, and delivering robust, scalable tech stacks that power engaging gameplay and dynamic cloud services.

Firas Ferjen

Game Developer, Game Designer, Animator, +7

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I'm a game developer and full-stack engineer with 7+ years shipping VR, mobile, and WebGL titles end to end, from gameplay and XR interaction to live cloud backends on Firebase and Google Cloud. I’ve built and led delivery for clients across Qatar, Saudi Arabia, and the United States, spanning in-house engine frameworks, AI-driven features, Web3 economies, and real-time multiplayer. I thrive on turning ambitious ideas into polished experiences, collaborating across disciplines, and delivering robust, scalable tech stacks that power engaging gameplay and dynamic cloud services.…I'm a game developer and full-stack engineer with 7+ years shipping VR, mobile, and WebGL titles end to end, from gameplay and XR interaction to live cloud backends on Firebase and Google Cloud. I’ve built and led delivery for clients across Qatar, Saudi Arabia, and the United States, spanning in-house engine frameworks, AI-driven features, Web3 economies, and real-time multiplayer. I thrive on turning ambitious ideas into polished experiences, collaborating across disciplines, and delivering robust, scalable tech stacks that power engaging gameplay and dynamic cloud services.

Available to hire

I’m a game developer and full-stack engineer with 7+ years shipping VR, mobile, and WebGL titles end to end, from gameplay and XR interaction to live cloud backends on Firebase and Google Cloud. I’ve built and led delivery for clients across Qatar, Saudi Arabia, and the United States, spanning in-house engine frameworks, AI-driven features, Web3 economies, and real-time multiplayer.

I thrive on turning ambitious ideas into polished experiences, collaborating across disciplines, and delivering robust, scalable tech stacks that power engaging gameplay and dynamic cloud services.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Arabic

Fluent

French

Advanced

English

Advanced

Work Experience

Co-Founder at ETHOS Studios TUNS

October 1, 2023 - November 27, 2024

Managed HR tasks using ClickUp. Led marketing efforts through social media, standups, and event participation. Oversaw hiring processes via LinkedIn and freelance platforms. Handled legal documentation in collaboration with the accountant.

Game Developer at Fahy Studios, Riyadh, Saudi Arabia

March 1, 2023 - February 29, 2024

Delivered high-quality casual mobile games. Designed and implemented game mechanics using Unity3D. Performed optimization tasks using Unity Profiler. Managed team workflow with Trello. Integrated Firebase for database management. Shared team progress using Plastic SCM.

Lead Game Developer at Crypto Champion, Florida

February 1, 2022 - November 27, 2024

Delivered a blockchain-based play-to-earn game. Built games for WebGL, Android, and iOS platforms. Managed game economy using Sheets API. Developed an admin portal. Integrated web3 functionality into games using Unity3D and ChainSafe SDK. Created and deployed NFTs on OpenSea. Utilized Firebase for hosting, cloud scripts, and real-time database services. Collaborated with team members using Plastic SCM.

Lead Game Developer at K11, New York

January 1, 2021 - September 30, 2023

Implemented PlayFab as a backend service. Integrated NFTs into gameplay. Built games for desktop, iOS, and Android platforms. Wrote clean, maintainable code for team collaboration. Managed animation integration and shooting mechanics. Incorporated Unity Analytics for game insights. Coordinated team progress using ClickUp. Shared scripts and progress via GitHub.

Lead Game Developer at OXS Inc , USA

August 1, 2024 - Present

Multiplayer basketball game simulation. Performed optimization tasks using Unity Profiler. Integrated Firebase for database management. Shared team progress using Plastic SCM (version control). Developed an admin portal.

Game Developer at Fahy Studios, Riyadh, Saudi Arabia

February 29, 2024 - July 28, 2025

Lead Game Developer at Crypto Champion, Florida

February 1, 2022 - Present

Delivered a blockchain-based play-to-earn game. Built games for WebGL, Android, and iOS platforms. Managed game economy using Sheets API. Developed an admin portal. Integrated Web3 functionality into games using Unity3D and ChainSafe SDK. Created and deployed NFTs on OpenSea. Utilized Firebase for hosting, cloud scripts, and real-time database services. Collaborated with team members using Plastic SCM.

Lead Game Developer at K11, New York

September 30, 2023 - July 28, 2025

Lead VR Developer at Nukmuay VR

July 1, 2025 - Present

Built a Muay Thai training experience for Meta Quest using HurricaneVR and the BNG Framework, with hand tracking, loco-motion, and haptic feedback. Authored interaction systems, rig controllers, and custom hand poses for responsive martial-arts combos; integrated Meta Voice/Wit for in-headset voice guidance. Customized URP/HDRP shaders, post-processing, and VFX, profiling sessions to hold VR frame budgets.

Lead Developer – Game & Cloud Backend at OXC Inc

August 1, 2024 - Present

Built Node.js backends on Firebase Functions and Google Cloud (Admin SDK, Cloud Tasks, Sheets API) secured with service accounts and OIDC-authenticated jobs. Authored a basketball simulation engine with probability, statistics, and AI-generated commentary; synced live config and assets into Unity via Sheets and ScriptableObjects. Designed data pipelines that replace full Realtime Database states from Cloud Storage with validation, and integrated OpenAI chat completions inside Unity.

Core Game Developer at Fahy Studios

March 1, 2023 - February 29, 2024

Core developer at a NEOM Level Up (Cohort 1) studio building hybrid-casual mobile titles in partnership with global publisher Kwalee. Designed and implemented game mechanics in Unity, integrated Firebase, and optimized performance with Unity Profiler.

Lead Game Developer at Crypto Champion

February 1, 2022 - February 28, 2025

Delivered a blockchain play-to-earn game shipped across WebGL, Android, and iOS; integrated Web3 via ChainSafe SDK and deployed NFTs on OpenSea. Built an admin portal and managed the in-game economy through the Sheets API; used Firebase for hosting, cloud scripts, and realtime data.

Lead Game Developer at K11

January 1, 2021 - September 30, 2023

Shipped cross-platform titles (desktop, iOS, Android) with PlayFab backend and NFT gameplay integration. Managed animation and shooting mechanics, instrumented Unity Analytics, and coordinated delivery via ClickUp and GitHub.