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Antonios Savvidis

Senior XR Engineer specializing in Unity VR/AR simulations

FreelanceInternational College of Business Studies13 Years ExperienceSenior Level

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About

Unity developer from the Naer project who built a natural-feeling VR wrist-flick gesture mechanic for teleport/push/pull interactions, validated through telemetry, low-FPS simulation, and diverse user testing with modular ScriptableObject tuning. Also handled Photon PUN 2 networking bug fixes (mid-air item state issues) and RPC optimizations while integrating AI tools (Claude/Gemini/ChatGPT) into planning and implementation.

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Key Strengths

  • Designed frame-rate independent VR gesture system using controller-based values and cycling buffer for intent detection
  • Strong playtesting/validation approach (debug telemetry, simulated low FPS, diverse user testing)
  • Modular, tunable gameplay systems via ScriptableObjects enabling rapid iteration from user feedback
  • Photon PUN 2 troubleshooting and hardening (failsafes, master-client change handling, cleanup to prevent state carryover)
  • Networking performance optimization by reducing unnecessary RPCs and applying Photon optimization guidance
  • Effective use of AI tools for task decomposition, architecture refinement, and coding support

Reference Highlights

Strongly Recommended
  • Hardworking
  • Deep technical understanding
  • Deep knowledge of Unity internals
  • Improved VR app performance from laggy to smooth
  • Proactive in enabling designer/product tweaking via runtime variables
  • Supports decision-making with builds and videos
  • Easy to collaborate with directly
  • Handles hectic days without collapsing
  • Efficient and pragmatic when needed
  • Strong emotional communication even while remote
  • Personable; nice guy
  • Deep and broad knowledge
  • Inventiveness/creativity across multiple levels
  • Strong collaboration skills
  • Empathy
  • Adaptability
  • Brings out the best potential in others
  • Immediate response to changes and needs
  • Inventive time management
  • Effective use of data
  • Determination under pressure
  • Calmness under tight deadlines
  • Deep expertise in Unity
  • Highly effective and efficient implementation
  • Reliable; gets it right the first time
  • Strong ownership of project setup and handoff
  • Able to resolve complex technical issues
  • Understands codebase and Unity complexities
  • Enables other teams to complete projects
  • Key contributor within interdisciplinary pods
  • Happy, helpful, encouraging teammate
  • Welcoming to feedback
  • Balances feedback incorporation without slowing delivery
  • Effective, efficient, methodical under tight deadlines
  • Creative, well-thought-out approach to problem solving and debugging
  • Positive attitude while tackling tasks
  • Technically brilliant
  • Strong Tech Lead who supports and elevates teams
  • Connects business needs with development reality
  • Helps untangle complex Unity issues
  • Proposes elegant technical solutions
  • Breaks silos across teams/departments
  • Highly responsive and available to teams
  • Loyal and does what’s needed to solve issues
  • Effective liaison between dev, art, and QA
  • Balances quick hot-fixes vs long-term systematic solutions (opportunity cost mindset)
  • Deep Unity expertise
  • Strong technical breadth (addressables, memory, profiling, input, UI)
  • Creates clean, standards-compliant code
  • Applies good coding practices (SOLID)
  • Effective at solving programming issues for other teams
  • Built QA automation system integrated with internal framework
  • Able to build new framework functionality
  • Excellent communication across teams
  • Explains things in a friendly, understandable way
  • Strong at identifying and relaying production priorities
  • Systematic debugging approach
  • Uses debugging tools proficiently
  • Not afraid to ask for help; promotes knowledge sharing and faster solutions

Antonios's references speak for themselves. Let us connect you.

Experience

Project Architect / Lead developer / ResearcherSolo freelancer · Dec 2024 – Presentfreelance
Senior VR Interactions developerNaer.io · Jun 2023 – Sep 2024contract
XR Tech Lead (Unity)Transfr · Aug 2021 – May 2023
Head of VR & AR Development / Lead developerDigital Innovations · Feb 2020 – Jul 2021
VR Mentor (Unity)Udacity · Mar 2017 – Dec 2019part-time
Unity Dev / 3D Designer / Tech advisorSolo freelancer · Jun 2012 – Feb 2017freelance

Education

International College of Business Studiesbachelor, Marketing

Awards

  • Lights up the room award - Transfr

Languages

English

Publications

1 publication

XR/VR research

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Connect with Antonios

Antonios already has a relationship with Reval, so a warm intro from us gets a much better response than cold outreach.

Typically responds within 24 hours

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Antonios SavvidisSenior XR Engineer specializing in Unity VR/AR simulations