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Systems Engineer with a strong focus on game development and production pipelines. Experienced in Unity3D, C#, Playfab, and Unity Game Services (UGS), with a track record of building tools, systems, and gameplay features across multiple platforms. Known for reliable teamwork, clear communication, and the ability to take ownership of projects from prototype to release. Always eager to learn new technologies and refine both technical and creative workflows.…Systems Engineer with a strong focus on game development and production pipelines. Experienced in Unity3D, C#, Playfab, and Unity Game Services (UGS), with a track record of building tools, systems, and gameplay features across multiple platforms. Known for reliable teamwork, clear communication, and the ability to take ownership of projects from prototype to release. Always eager to learn new technologies and refine both technical and creative workflows.

Juan Lu Jiménez Nichols

Game Developer, Designer, 3D Designer, +2

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Systems Engineer with a strong focus on game development and production pipelines. Experienced in Unity3D, C#, Playfab, and Unity Game Services (UGS), with a track record of building tools, systems, and gameplay features across multiple platforms. Known for reliable teamwork, clear communication, and the ability to take ownership of projects from prototype to release. Always eager to learn new technologies and refine both technical and creative workflows.…Systems Engineer with a strong focus on game development and production pipelines. Experienced in Unity3D, C#, Playfab, and Unity Game Services (UGS), with a track record of building tools, systems, and gameplay features across multiple platforms. Known for reliable teamwork, clear communication, and the ability to take ownership of projects from prototype to release. Always eager to learn new technologies and refine both technical and creative workflows.

Available to hire

Systems Engineer with a strong focus on game development and production pipelines. Experienced in Unity3D, C#, Playfab,
and Unity Game Services (UGS), with a track record of building tools, systems, and gameplay features across multiple
platforms. Known for reliable teamwork, clear communication, and the ability to take ownership of projects from prototype
to release. Always eager to learn new technologies and refine both technical and creative workflows.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Language

Spanish; Castilian

Fluent

English

Fluent

Work Experience

Senior Unity Developer at Merlyn Labs

December 1, 2023 - November 17, 2025

Led development of BelleMint on iOS and Android from prototype to full playable release. Designed and implemented overall game structure, including card systems, combat flow, and data management. Built internal tools for designers and testers (card visualization utilities, feature helpers, large-scale simulation systems). Created core systems (collections, visual and sound effect managers, and the core gameplay loop). Integrated Unity Gaming Services multiplayer, matchmaking, and Cloud Code communications. Collaborated with designers, artists, and producers to shape game design, visuals, and tech workflows. Defined project standards and pipelines to keep a clean, scalable codebase. Contributed to gameplay balance and overall player experience through iteration and testing. Led Steam publishing workflow and end-to-end release preparations.

Unity Engineer at Muus Collective

May 1, 2023 - May 1, 2023

Developed core game features including the IAP store, boutique shop, level-up screens, and toast notifications. Partnered with artists to design and implement effects, animations, and UI elements. Collaborated with backend engineers to integrate in-game stores and data systems. Delivered a functional Unity client connected to an API-driven backend. Led a full UI/UX update to align with design mockups; improved architecture and debuggability; implemented client-server communication using Azure and PlayFab.

Gameplay Lead at Big Red Button

January 1, 2023 - January 1, 2023

Led Unity-based gameplay for Fallout Shelter Online on iOS/Android. Translated client/server from C++ to C# for a more maintainable pipeline. Implemented in-app purchase and store features with backend interactions. Updated UI assets to match guidelines; improved client–server communication using Azure and PlayFab.

Game Developer – Unity at RM2 Digital

January 31, 2021 - January 31, 2021

Created reusable prefab components to support art and engineering teams. Developed engagement modules for players, implemented a new in-game store and currency spending systems, integrated in-game purchases, and authored UI assets per guidelines. Built client-server interactions and CI/CD pipelines via Jenkins.

Game Developer / Gameplay Engineer / CTO at Timba Games

February 1, 2020 - February 1, 2020

Led Unity UI development for upcoming games and created reusable prefab components to support art and engineering teams, improving performance and reducing redundancy. Produced prototypes for rapid testing of gameplay flows and mechanics. Collaborated with sound designers on effects and audio tools. Led projects from concept to release across Android, iOS, and Steam; integrated in-game purchases; authored game design docs and onboarding materials; established best practices for project structure and naming conventions.

Engineer / Game Developer at Chess Game Online / Happy Future / Smash Balls / Flappy C (Freelance)

January 1, 2014 - January 1, 2014

Worked on a variety of mobile and desktop games, including Chess Game Online (Android/WebGL), Happy Future (Android/iOS), Smash Balls, and Flappy C. Created reusable prefab components and in-game stores; built UI assets and currency systems; contributed to multiple game projects across platforms.