Josie Messa
Engineering Manager at InfoSum
Test Valley, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJosie Messa is an engineering manager with 11 years of experience building and leading backend and multiplayer engineering teams across games and cloud platforms. She has progressed from hands-on developer roles at IBM and Multiplay to senior engineering and leadership positions at Unity and Splash Damage, owning backend strategy, tooling, and cross-discipline coordination for live game services. At Unity she contributed to editor-integrated multiplayer tools and to the widely used Netcode for GameObjects open-source library, refactoring core networking logic and improving scene event telemetry. Now at InfoSum she applies a blend of systems architecture, SRE-informed automation, and people leadership to deliver reliable, testable infrastructure. An Oxford MMath graduate, she pairs rigorous mathematical thinking with practical engineering pragmatism and a knack for turning complex multiplayer requirements into maintainable tooling and services.
11 years of coding experience
10 years of employment as a software developer
MMath, Mathematics, MMath, Mathematics at University of Oxford
Github Skills (10)
net10
multiplayer10
networking10
multiplayer-game10
dotnet-core10
unity3d10
csharp9
hla9
hapi9
test-automation7
Programming languages (3)
Github contributions (5)
Unity-Technologies/com.unity.netcode.gameobjects
Jun 2021 - Feb 2022
Netcode for GameObjects is a high-level netcode SDK that provides networking capabilities to GameObject/MonoBehaviour workflows within Unity and sits on top of underlying transport layer.
Role in this project:
Back-end Developer / Software Architect
Back-end Developer / Software ArchitectContributions:63 reviews, 14 commits, 25 PRs in 7 months
Contributions summary:Josie primarily focused on refactoring and enhancing the Netcode for GameObjects project, making updates to the core networking logic. This involved modifying function signatures and adapting code to accept and manage network objects more effectively, specifically concerning object despawning. Their work also included tracking scene event metrics to improve the monitoring of scene loading and unloading operations, and improving tests.
unitymonobehaviouron-topnetcode-for-gameobjectshigh-level
josiemessa/aoc2020
Dec 2020 - Jan 2022
Contributions:18 pushes in 1 year 1 month
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