Robert Gesicki

Senior Game Developer

Professional Summary

Senior Game Developer with 7 years of experience building games from prototype to release and live service. Extensive experience in C# and Unity, with working knowledge of Unreal, React, as well as familiarity with a vast range of other development tools, and languages. 

Excels at bridging creative and technical teams to deliver polished, high-quality experiences, with a strong focus on player-centric design and meticulous attention to detail. Works well as part of a team, as well as an independent asset.

Work Experience

Lead Game Developer, Charisma.ai | April 2024 - October 2025

  • Directed end-to-end implementation of client projects, involving interactive chat experiences with 3D avatars in Unity and Unreal, coordinating across artists, writers, and developers

  • Maintained and extended SDKs in Unity, Unreal, and JS/React, delivering new features and enhancing existing functionality

  • Prototyped and delivered many internal projects in game engines, as well as providing support on internal tooling used in other departments

  • Led R&D into new tech areas of the company - Godot, Three.js, WebGL, lipsync, speech input

  • Designed UI/UX for ‘Charismatic’, an innovative visual story generation tool backed by Innovate UK

  • Supported live ops for 'Project Electric Sheep' on Steam and Epic Games Store, through community feedback and bug reports

  • Worked closely with AI tools, animation, and audio, with a big focus on natural human-computer interaction

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Senior Game Developer, Matchday Inc | April 2023 - March 2024

  • Worked on ‘Matchday Champions’, a FIFA-licensed PvP game with bleeding-edge AI and Web3 components

  • Spearheaded the implementation of the base game architecture and all cross-game services, as well as tooling for visual effects

  • Optimized the game to remove performance bottlenecks, and fix memory leaks

  • Wrote tools to assist developers and designers in producing the game, with a big focus on gameplay AI tooling

  • Worked alongside production to deliver quality under extreme deadlines, with quick turnaround on shifting requirements

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Game Developer, First Light Games | March 2022 - March 2023

  • Worked on ‘Blast Royale’, a F2P mobile online Battle Royale game with Web3

  • Implemented and owned the networking, audio, and onboarding areas of the project, as well as contributing to UI, backend, and progression systems

  • Implemented new gameplay systems using Photon Quantum

  • Performed game-wide refactors to improve the quality of the codebase

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Game Developer, MAG Interactive | March 2018 - March 2022

  • Worked on numerous mobile games, from prototypes to live operations, with a large part of time spent contributing to the game 'Wordzee' and various other multiplayer games

  • Implemented gameplay systems, art, audio, and 3rd Party SDKs

  • Designed and delivered features with a strong focus on player experience and onboarding mechanics

  • Led R&D on numerous multiplayer prototypes, including a personal one that was green-lit for further production

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Web Developer, Adinlay | Jun 2019 - Jul 2019

  • Helped out a designer by developing, and iterating on a brand new website for a client.

  • Website was implemented ahead of schedule using Wix, and technical documentation was provided to the client.

Education

Kingston University London, 2017

  • Bsc (Hons), Computer Science (Games Programming): First Class Honours

Key Competencies

  • Languages - C#, C++, Python, JavaScript

  • Tools - Unity, Unreal Engine, Godot, React, Git

  • Networking - TCP, UDP, Photon, WebSockets, DarkRift, Mirror, FishNet, SpacetimeDB

  • Backend - REST, SQL, GraphQL, Firebase

  • Graphics - CG/HLSL Shaders

  • Design - SOLID, DRY, KISS, UX, Game Mechanics Design, Level Design

  • Other - QA, Automated Testing, Optimization, Technical Writing, Prototyping, Live Ops, Engine Tooling