Engineering Scalable Games & Software for the Future
8+ Years Experience | 15+ Projects Delivered | 20+ Technologies Mastered

About me

I’m Rafael Zuniga, a Senior Game & Software Engineer with a track record of turning ambitious ideas into fully developed, scalable products. Over the past 8+ years, I’ve built scalable game architectures, market-ready multiplayer games, cloud-integrated applications, and Web3-enabled experiences—bridging the gap between game development and high-performance software engineering.

I specialize in designing and executing complex systems, whether it’s real-time multiplayer networking, scalable backend infrastructure to UI/UX-driven interactive experiences. I thrive in fast-paced, high-stakes environments, leading lean teams to ship high-quality software efficiently.

With a deep understanding of cross-platform development, AI-powered tools, and cloud-based solutions, I focus on building modular, maintainable architectures that allow products to evolve and scale. Whether launching a new product, optimizing live operations, or integrating cutting-edge technologies, I bring a detail-oriented, solution-driven approach—where performance, usability, and visual polish work in harmony.

Core Expertise & Specialties

Bridging game development, scalable software, and emerging technologies to build high-performance, future-ready experiences.

1️⃣ Scalable Architecture & Cross-Platform Systems

🔹 Building modular, reusable architecture for high performance and scalability
🔹 Creating complex ecosystems with numerous APIs, SDKs, Libraries & backend services.
🔹 Developing with technology and principles for cross-platform experiences (Mobile, PC, WebGL or VR)
🔹 Leveraging deep multi-discipline Unity3D expertise (Advanced rendering pipelines, profiling, physics, animation, networking, asset management)

2️⃣ Full-Cycle Mobile Development

🔹 From prototype to production—delivering market-ready games
🔹 Advanced SDK integrations: ad mediation, analytics, attribution, PlayFab, Azure, Firebase, mobile attribution, authentication, Web3, and real-time multiplayer
🔹 Mobile pipelines, publishing, ASO, data analysis, crash-rate reduction, profiling, live servicing & data-driven development

3️⃣ Agile Development & Scalable Execution

🔹 An agile, fast-paced development approach with a problem-solving mindset
🔹 Experience leading high-complexity projects with lean teams, tight timelines, and meticulous attention to detail
🔹 Leveraging AI-powered tools to enhance efficiency, automation, and decision-making in development

4️⃣ Business & Product Strategy for Games & Apps

🔹 Market-driven development leveraging analytics, ASO/SEO, KPI-driven strategies
🔹 Monetization expertise—Ads, IAP, or subscription based revenue models,
🔹 Technical leadership & execution—turning ideas into scalable, commercially viable products
🔹 Exploring new business models with blockchain integration, digital assets, and tokenized economies
🔹 Proven ability to execute and ship at scale, from prototypes to full-production releases

My Portfolio

A quick showcase of experiences I've Engineered

Bumper Aliens

A dynamic 2D shooter mobile game featuring block-based map arenas, customizable 3-part spaceships, and strategic drone systems with five unique types. Players engage in progressively challenging missions, unlock rewards through a chest system, and enhance gameplay with intuitive touchscreen controls and incremental difficulty scaling.

Space Box

A thrilling 2D shooter where players build modular spaceships, battle in real-time multiplayer arenas, and unlock powerful upgrades. Featuring dynamic gameplay, diverse game modes, and cutting-edge physics, it offers endless opportunities for strategy and customization.

Foka GO

An addictive arcade game featuring vibrant themes, block-stacking mechanics, and endless challenges. Quirky characters, customizable features, and dynamic stages create a playful blend of strategy and timing

Strategic & Casual Classics

Word Games

A single-player word game where players place letters on a constantly shifting board, challenging their skills to form words and stay in the game as long as possible!

Dominoes

A classic dominoes experience where players face a CPU opponent with adjustable difficulty. Featuring quick, strategic matches and a sleek, intuitive interface, it’s perfect for sharpening skills or unwinding with a relaxing game.

Casual

A vibrant bubble shooter game where players aim, match, and pop bubbles to clear levels. With intuitive controls and satisfying mechanics.

Others

3D Runner

A 3D runner with a quadruped character racing through an infinite, curved world. Featuring procedural levels and enemies resulting in a fast-paced challenge

Physics Puzzles

A challenging space puzzle game set in a dynamic, ring-filled environment where fuel management and precise navigation are essential for success.

Casual

A lively arcade game where players launch and bounce their character across a whimsical candy themed landscape. Fun, fast-paced, and endlessly entertaining.

MORPG Prototype

This 6 month project showcases my expertise in full-stack game development, scalable system design, and real-time multiplayer infrastructure. Built with a top-tier tech stack, it integrates cloud services, efficient asset management, and real-time networking to deliver a seamless online open-world experience.


At its core, this project is a scalable, data-driven Online Game powered by:
🔗 Addressables – Efficient asset streaming & memory management, ensuring seamless world transitions and content scalability.
🛠 PlayFab & Azure Functions – Robust backend for authentication, player profiles, economy systems (Economy V2), and data persistence.
⚡ Photon Fusion 2 – High-performance networking for players, AI-driven enemies, synchronized combat, in-game chat, and more.
🌎 Scalable MMO Architecture – Designed for thousands of zones, items, enemies, persistent player data, live events, and ongoing content expansions.
🎮 Cross-platform Compatiblity – Playable in Desktop, Mobile and WebGL with keyboard & mouse, controllers and touchscreen devices.

Every aspect of this project reflects my ability to design, build, and finalize production-ready game systems, making it the definitive showcase of my ability to blend technical depth with gameplay innovation.