Christopher Sosa Email & Phone Number

Lake Forest, CA, US

Irvine, CA, US

Irvine, CA, US

• Unannounced UE4 First Person Shooter:
• Stood up UE4 4.26 project
• Setup TeamCity UE4 automated nightly builds
• Setup Unreal Game Sync to allow designers and Artists to fetch precompiled binaries directly from Perforce
• Managed a team of 9 software engineers to deliver a gameplay trailer to the client
• Mentored and taught engineers about how to use unreal 4

Irvine, CA, US

• Drifters:
• Refactored grapple system to properly use unreal gameplay ability system and improve feel of grapple
• Working to improve garbage collection times on Drifters servers
• Used Unreal Network Profiler to optimize replicated actors
• Fixed client server desyncs on Grapple Gameplay Ability
• Created process and pipeline for having QA gather performance data using Unreal Insights

Irvine, CA, US

• Unannounced iOS MMO:
• Got visual studio engine and game projects compiling and linking in Xcode
• Worked on getting the engine to properly start up and render on device
• Headed up rendering team to get new Vulkan renderer working on iOS
• Optimized new Vulkan renderer to run at acceptable frame rates on device
• Fixed post process blur shaders on iOS

Irvine, CA, US

• Sunset Overdrive (Steam, Windows Store - released)
• Ported save system from one save only to multiple slot save system. Included support to delete, load, and overwrite saves.
• Added cloud save support for both Steam and UWP Windows Store.
• Added mouse and keyboard support to the engine in both UWP app and Win32 Steam app.
• Fixed multiple Nvidia/AMD specific bugs for specific graphics card architectures
• Fixed Norton Dragon boss fight. The model's vertices were popping and being rendered improperly on PC

• Created revenue increasing engine extension to support native rewarded video ads using Admob
• Implemented daily mission system to increase number of daily active users and user retention
• Wrote Android extension to support distribution of game assets via.obb files to improve startup flow
• Expanded creature inventory to be four times bigger by implementing a virtualized scroll view
• Implemented client side overhaul of PVP system which included brand new UI and gameplay
• Fixed graphical error that displayed tile boundary artifacts on the map screen on key mobile devices

• Worked on F-18 maintenance trainer
• Ported the old maintenance trainer code to a new in-house simulation engine

Redwood City, CA, US

• Rory McIlroy PGA Tour (PS4, Xbox one - released)
• Utilized AI players to create a distributed automated test script that gathered metrics denoting completion of levels
• Fixed memory leaks/stomps

Bethesda, MD, US

• Worked on SAGE flight simulator as a rendering engineer
• Implemented light mapping for runway and city lights
• Implemented fried or foe training highlight shader for identifying vehicles in the simulation
• Created volumetric fog shader for realistic configurable fog banks
• Ported Microsoft Flight Simulator X worldwide flight terrain lookup tables and terrain textureresolving algorithm from MSVC++ to Linux GNU C++ in support of the effort to add worldwideflight (No load times when flying.

San Francisco, California, US

Graduate school capstone project. Escherreal is a game where manipulating gravity and transitioning between 3D and 2D are the main mechanics.http://www.escherreal.com/

Orlando, FL, US

I was the SCRUM Master for my senior design capstone project. I manage the sprint, defect, and testing documentation as well as code modules for the software system. The project is to make a DSI multi-touch table that runs an in-house coded tower defense application using C#, XNA, and CCV.

El Segundo, California, US

Programmed the back end of a website to display and sort search metrics data gathered by SQL queries in C# and ASP.NET

Team leader responsible for designing and fabricating the computer system for the Knightsat II satellite. Made major contributions to the design of our satellite and presented it at a PDR at the AIAA/Utah state University Small Satellite conference 2009, a professional engineering conference. Participated in AFRL SHOT at CSU Boulder to launch a data.

Assisted Programmers in the PROFIT project directed by Dr. Lobo. Modifying Image J, a graphics editing program in the JAVA environment.

Master'S Degree, Interactive Entertainment

Bachelor Of Science (B.S.), Computer Engineering