Rubén Galán Díaz

Lead Unity Developer
Málaga, Spain · rubengalandiaz@gmail.com · +34 611 45 52 01 · Portfolio Web · LinkedIn

Specialized in C# programming with 8 years of experience in the Unity engine, 7 of which have been professional work in the VR sector. The products I have led are deployed across 60+ organizations in 8 countries, including leading university hospitals, international universities, and public health systems. I am passionate about artificial intelligence and have had the opportunity to integrate it at MetaMedicsVR, both to optimize team efficiency and to make it a key feature in several of our products.

Lead Unity Developer MetaMedicsVR

Leading product vision and execution, working closely with a multidisciplinary team. My goal is to ensure every project aligns with client requirements and meets the highest quality standards.

  • Team in charge: 5 people (3 Unity developers, 2 3D artists), coordinating with the web team (3 developers) for Unity-backend integration
  • Products deployed across 60+ client organizations in 8+ countries (Spain, USA, Germany, Italy…)
  • Integrated AI into VR solutions to optimize team efficiency
  • Architecture and delivery of 10+ complete VR products for Meta Quest 2/3/3S standalone
  • Clients: university hospitals (12 de Octubre, Bellvitge, Clínic Barcelona), universities (LMU München, UNIPD Padova), US healthcare (Sanford Health, M Health Fairview)
Senior Unity Developer MetaMedicsVR

Developed innovative medical solutions focused on virtual reality, handling technical architecture and product programming.

  • First multiplayer integration with Photon in the company's medical VR experiences
  • Hand tracking implementation for controller-free VR interactions on Meta Quest 2
  • Designed VR ↔ web platform communication architecture (REST APIs, dashboards, LCMS)
  • Quest standalone performance optimization: profiling, shader simplification, and object pooling
  • Established team code standards, unit testing practices, and technical documentation
Mid Unity Developer Stracos Ltd

Development of "Line Simulator", a VR training simulator for the industrial sector.

  • Full level ownership: all gameplay logic, events, and win conditions for entire game sections
  • Designed and programmed the Snap Zones system (magnetic object anchoring), a core VR UX mechanic
  • Autonomous delivery of complete features in an industrial VR training simulator
Junior Unity Developer Kodeless VR

First professional virtual reality projects.

  • Key programmer for the Weaboo's Dream demo, developing the player/environment interaction system
  • Torture VR development: first VR performance optimizations for immersive environments
Technician in Microcomputer Systems and Networks I.E.S. Politécnico Jesús Marín

LAN configuration, TCP/UDP, OSI model, systems administration, and cybersecurity fundamentals.

  • Unity3D & C# (7+ years)
  • VR Development for Meta Quest 2/3/3S
  • Meta Quest SDK / Meta XR All-in-One SDK
  • Real-time Multiplayer (Photon, Mirror)
  • Quest standalone Optimization
  • External Hardware SDK Integration
  • System Architecture
  • Hand Tracking & OpenXR
  • VR Physics Systems & Simulation
  • AI Integration (LLMs, ASR, NLG, TTS)
  • UI/UX
  • Cross-platform Development (VR/PC/Mobile)
  • CI/CD, Git & GitHub
  • Claude Code (AI-assisted development)
  • Team Leadership (5 people)
  • Architecture Decision-making
  • Agile Methodologies (Scrum)
  • Code Reviews & Pair Programming
  • Unit & Integration Testing
  • Technical Project Documentation
  • Recruitment & Team Training
  • Ability to give constructive feedback
Claude Code in Action  — Anthropic — 2026
IBM SkillsBuild Cybersecurity  — IBM SkillsBuild (Instructor-led) — 2025
Foundations of Project Management  — Google (Coursera) — 2024
Google Data Analytics  — Google (Coursera) — 2022
CCNA Switching & Routing  — Cisco Networking Academy — 2019
CPR Training (Unity, VR, Quest 2, Multiplayer, Hand Tracking)

CPR training simulator with innovative depth measurement system on Quest 2. Hand tracking and Photon multiplayer for collaborative training sessions with multiple simultaneous users. Rated by clients as the best VR CPR simulation available.

Laparoscopic Vasectomy (Unity, VR, Physics, Hardware SDK Integration)

VR surgical simulation with realistic physical interactions. External hardware SDK integration (HurricaneVR, Obi Physics) for advanced fluid, soft body, and rope simulation through particle-based physics systems.

CNA Skills Simulation (Unity, VR, Quest, Analytics, 18 levels)

Medical VR simulation with 18 clinical training levels. Modular system that recycled 90% of code across levels, drastically reducing development time. Unity ↔ web database integration for centralized performance analytics.

AI-Powered Psychology Training (Unity, Android, iOS, AI, ASR, NLG, TTS)

Mobile training app for psychologists with AI-driven NPCs. Researched and evaluated ASR, NLG, and TTS platforms (Google, Microsoft, Amazon). Built a modular system for assigning intelligent behaviors to multiple NPCs. Full UI design and implementation for Android and iOS.

Streaming Screen VR (Unity, PC, Smartphone, Multi-user)

Multi-platform streaming system for broadcasting VR content in real time to PCs and mobile devices. Optimized for multiple simultaneous users without server overload.

  • Unity3D & Unity Hub
  • JetBrains Rider
  • Claude Code & Gemini (AI)
  • Git & GitHub
  • Meta Quest SDK / Meta XR
  • Photon Networking
  • Docker
  • Notion, Jira, Asana
Backend — Java + Spring Boot + RabbitMQ CaixaBank
Rank 8 out of 466 participants
  • No prior Java experience: transferred C# and OOP knowledge to pick up the language on the fly
  • Built a functional backend with Spring Boot (REST services) and RabbitMQ (async messaging) meeting the challenge's performance requirements
  • Demonstrated language-agnostic problem-solving ability
Helio Rabadán Toro  — CTO — MetaMedicsVR
H.rabadantoro@gmail.com
Carla Infante Martín  — 3D Artist (Character Modeling, Animation & Rigging) — MetaMedicsVR
infantemartincarla@gmail.com
Anna Zangó  — Mid Unity Developer — MetaMedicsVR
anna.zango@gmail.com
  • Spanish — Native
  • English — Professional (B2+)