Available to hire
Hi, I’m Marc Arroyo. I’m a Senior Frontend Engineer with a focus on Unity (C#), real-time systems, and scalable UI/UX engineering for mobile games. I design AI-driven development workflows and automation pipelines that reduce manual workload and accelerate production.
I enjoy collaborating across engineering, design, and product teams to ship live-service apps with strong user engagement, and I’ve led cross-functional initiatives that improve delivery speed through CI/CD and tooling.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
Catalan; Valencian
Fluent
Spanish; Castilian
Fluent
English
Fluent
Japanese
Fluent
Italian
Advanced
Work Experience
Lead Frontend Engineer | AI & Automation Lead at GMO Insight (GMO Internet Group, Inc.)
July 1, 2019 - PresentLed frontend development and UI/UX design for Unity-based mobile games (C#), delivering scalable and high-performance user experiences. Coordinated cross-functional teams across frontend, backend, 3D, and product, improving workflow efficiency and delivery consistency. Delivered and maintained live mobile games and established monthly release cycles for continuous delivery. Engineered CI/CD pipelines with Jenkins, created shell scripts to automate build, packaging, and release flows, and managed version control with Git, Mercurial, and Subversion. Designed AI-assisted development workflows using Claude, built automation to integrate AI into Unity pipelines (reducing manual workload by up to 80%), and applied AI to code review, debugging, asset generation, and workflow optimization. Integrated Firebase Analytics for user behavior and performance, led A/B testing to validate features, and participated in the internal Tech Innovation Division (2020–2026), producing biannual engineering
Lead UI/UX Designer at Baluwo
February 1, 2018 - November 1, 2018Led UI/UX design initiatives and supervised design processes across multiple projects. Conducted UX analysis, wireframing, and interface optimization to improve usability and conversion.
Game Developer / Lead UI Designer at Bemobile
June 1, 2016 - February 1, 2018Developed mobile and AR games using Unity (C#). Led UI/UX design and collaborated with cross-functional teams. Contributed to the full development lifecycle from concept to delivery.
AI–Unity Automation System at Internal Project (GMO)
December 1, 2025 - PresentDesigned AI-driven workflows integrating LLM tools with Unity to automate production pipelines, reducing manual workload by up to 80%.
Education
Bachelor’s Degree in Multimedia Engineering at La Salle Campus Barcelona (Universitat Ramon Llull)
January 1, 2013 - January 1, 2018AI Seminar Program (Internal Training) at GMO Internet Group, Inc.
May 1, 2023 - May 5, 2026Bachelor’s Degree in Multimedia Engineering at La Salle Campus Barcelona (Universitat Ramon Llull)
January 1, 2013 - January 1, 20183DS Max at Autodesk, Inc.
May 1, 2015 - May 5, 2026CCNA Routing and Switching at Cisco Systems, Inc.
September 1, 2016 - May 5, 2026AI Seminar Program (Internal Training) at GMO Internet Group, Inc.
May 1, 2023 - May 5, 2026Qualifications
CCNA Routing and Switching
September 1, 2016 - May 5, 20263DS Max
May 1, 2015 - May 5, 2026AI Seminar Program (Internal Training)
May 1, 2023 - May 5, 2026CCNA Routing and Switching
September 1, 2016 - May 5, 20263DS Max
May 1, 2015 - May 5, 2026AI Seminar Program (Internal Training)
May 1, 2023 - May 5, 2026Industry Experience
Gaming, Media & Entertainment, Software & Internet, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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