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Peter Greer - Senior Gameplay Engineer in San Ramon, CA

Peter Greer

Senior Gameplay/AI Engineer specializing in Unreal Engine game AI systems

Theorycraft GamesUC San DiegoSan Ramon, CA6 Years ExperienceSenior LevelWorks Flexible

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About

Senior Software Engineer with deep Game AI expertise (often the primary AI specialist on the team) who shipped a player-bot system in an Unreal-based battle royale to fill matchmaking gaps, reducing off-hours queue times and improving retention. Also owned complex multiplayer match-start/drop-sequence synchronization and has experience optimizing core gameplay systems (e.g., line-of-sight calculations) on Call of Duty at Infinity Ward.

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Key Strengths

  • Owned end-to-end design and implementation of player-bot system to improve battle royale queue health
  • Designed team-level AI planning (Team Planner) for squad coordination and shared goals
  • Deep Unreal AI/navigation customization for non-standard top-down + altitude movement (jump/fall/glider control)
  • Improved off-hours queue times and increased player retention via bot fill system
  • Strong multiplayer state management for complex match-start transitions (drop sequence) under disconnect/late-join scenarios
  • Performance-minded low-level gameplay optimization (efficient line-of-sight via 3D vector math)
  • Cross-functional collaboration with CTO, producers, systems team, designers, and QA; feedback-driven iteration using recorded playtests

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Experience

Senior Gameplay EngineerTheorycraft Games · Aug 2023 – Dec 2025
Senior AI EngineerInfinity Ward · Jul 2022 – Aug 2023
Game AI Software EngineerHangar 13 · Apr 2019 – May 2022
Software Engineer InternHangar 13 · May 2017 – Aug 2017internship
SQA InternFormFactor · Jun 2015 – Aug 2015internship

Education

UC San Diegomaster, Computer Science (2019)
UC Santa Cruzbachelor, Computer Science (2016)

Skills

CC++Unreal EngineGitPythonC#JavaScriptPerformance OptimizationMentoringMicrosoft Visual StudioUnreal InsightsPerforceLuaPerlBehavior Trees

Languages

English

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Peter GreerSenior Gameplay/AI Engineer specializing in Unreal Engine game AI systems