Available to hire
Hi, I’m JJ Rosenberg, a game technologies engineer with a US/Irish citizenship and a strong foundation in C++, C#, Unity, and Unreal Engine. I enjoy blending gameplay ideas with solid software engineering to build scalable tools, VR training apps, and web-based prototypes. My work ranges from leading cross-functional teams to delivering performant, engaging experiences across platforms.
Recently I’ve led a four-person team at KLM to create modular onboarding software using C#, .NET, Unity and WebGL; developed VR training solutions at Meta Chef; and executed university projects including a grade-analysis database and security-focused simulations. I’m excited to bring both game design sensibilities and rigorous engineering practices to new challenges.
Skills
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Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Work Experience
Computer Science Intern at KLM Amsterdam, Netherlands
January 1, 2024 - July 31, 2024Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling all hiring managers to quickly create a customized onboarding process regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef Enschede, Netherlands
January 1, 2023 - July 31, 2024Developed VR training software for a vocational culinary institute using C#, .NET and Unity to create real-time mesh deformations to safely train butchers. Created a custom haptic and force feedback hardware solution integrated with the VR software for resistance during knife cutting. Reduced VR environment latency by 40% and packet size by 30% through RESTful API caching of 3D GLB files, improving FPS from 52 to 72 and securing store approval. Integrated AI with product viewer enabling data generation and storage to a database using Vue3, MySQL, C#, .NET and Firebase, achieving a 35% adoption rate by clients in the first month.
Computer Science Intern at KLM
July 1, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling all hiring managers to quickly create a customized onboarding process regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef
July 1, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity to create real-time mesh deformations to safely train butchers. Created a custom haptic and force feedback hardware solution integrated with the VR software to create appropriate resistance for knife cutting. Reduced latency of VR environments by up to 40% during network calls and reduced packet size by an average of 30% using Piglet through a RESTful API to load and cache 3D GLB files at runtime. This reduced FPS lows of 52 to over 72 and thus allowed for approval on the Meta Quest Store. Integrated AI with existing catalogue product viewer enabling data generation and storage to a database using Vue3, MySQL, C#, .NET and Firebase. Achieved 35% adoption rate by clients in the first month.
Grade Analysis Database (University Project) at Saxion University
January 1, 2022 - September 8, 2025Created a database to log and store school results for each year and subject using MySQL. Enables users to analyze and identify trends in their results to achieve better results.
Penetration Testing - Simulation (University Project) at Saxion University / University Projects
April 1, 2021 - September 8, 2025Simulated a Man-in-the-Middle attack between a Windows 10 server and machine in isolated VMware environments. Escalated privileges to gain root access utilizing Kali Linux, Metasploit, Nmap, Burp Suite and other tools. Documented the vulnerabilities and fortified the system for the future.
Computer Science Intern at KLM, Amsterdam
July 31, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling hiring managers to quickly create customized onboarding processes regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef
July 31, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity to create real-time mesh deformations for safe butcher training. Built a custom haptic and force-feedback hardware solution integrated with the VR software to provide resistance for knife cutting. Reduced latency by up to 40% and decreased packet size by ~30% using Piglet via a RESTful API to load/cache 3D GLB files, enabling Quest Store approval. Integrated AI with an existing catalogue viewer for data generation/storage in Vue3, MySQL, C#, .NET and Firebase, achieving 35% client adoption in the first month.
Project: Grade Analysis Database at Saxion University
January 31, 2022 - September 8, 2025Created a MySQL database to log and store school results by year and subject, enabling analysis of trends to improve outcomes.
Penetration Testing - Simulation at University Project
April 30, 2021 - September 8, 2025Simulated a Man-in-the-Middle attack between a Windows 10 server and a machine in isolated VMware environments. Escalated privileges to gain root access using Kali Linux, Metasploit, Nmap, Burp Suite and other tools. Documented vulnerabilities and fortified the system for future security.
Computer Science Intern at KLM
July 1, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling hiring managers to quickly create customized onboarding regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef
July 1, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity to enable real-time mesh deformations for knife-safe training. Created a custom haptic and force-feedback hardware solution, reducing VR latency and asset load times (approx. 40% latency reduction; ~30% reduced asset loads via RESTful API) to support Quest Store approval. Integrated AI features with an existing catalog viewer, storing data in a database (Vue3, MySQL, C#, .NET, Firebase), achieving 35% client adoption in the first month.
Computer Science Intern at KLM
July 1, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL; scaled onboarding process company-wide, enabling managers to quickly create customized onboarding regardless of tech stack and reducing onboarding engineers from 3 to 1.
Computer Science Intern at Meta Chef
July 1, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity; created real-time mesh deformations for knife-cutting safety; built a custom haptic/force feedback hardware; reduced VR latency by up to 40% and packet size by ~30% using Piglet via RESTful API to preload 3D GLB files; integrated AI with a catalogue viewer (Vue3, MySQL, C#, .NET, Firebase) achieving 35% client adoption in the first month.
Independent Project at Saxion University Projects
January 31, 2022 - September 8, 2025GRADE ANALYSIS DATABASE: Created a MySQL database to log and analyze yearly and subject results to identify trends and help students improve results.
Independent Project at Saxion University Projects
April 30, 2021 - September 8, 2025PENETRATION TESTING - SIMULATION: Simulated a Man-in-the-Middle attack in isolated VMware environments; escalated privileges using Kali Linux, Metasploit, Nmap, Burp Suite; documented vulnerabilities and fortified the system.
Computer Science Intern at KLM
July 1, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling hiring managers to quickly create a customized onboarding process regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef
July 1, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity to simulate real-time mesh deformations for knife safety training. Created a custom haptic and force-feedback hardware integration, reduced VR latency by up to 40% during network calls, and cut 3D asset load times by 30% via a RESTful API with Piglet to cache GLB files at runtime. Integrated AI with catalogue viewer enabling data generation and storage with Vue3, MySQL, C#, .NET and Firebase; achieved 35% client adoption in the first month.
Computer Science Intern at KLM Amsterdam
July 1, 2024 - September 8, 2025Led a team of 4 to create modular onboarding software for new hires using C#, .NET, Unity and WebGL. Scaled and automated this process company-wide, enabling all hiring managers to quickly create a customized onboarding process regardless of tech stack and reducing the number of engineers required for each onboarding project from 3 to 1.
Computer Science Intern at Meta Chef
July 1, 2023 - September 8, 2025Developed VR training software for a vocational culinary institute using C#, .NET and Unity to create real-time mesh deformations to safely train butchers. Created a custom haptic and force feedback hardware solution integrated with the VR software to create appropriate resistance for knife cutting. Reduced latency of VR environments by up to 40% during network calls and reduced packet size by an average of 30% using Piglet through a RESTful API to load and cache 3D GLB files at runtime. This reduced FPS lows from 52 to over 72 and thus allowed for approval on the Meta Quest Store. Integrated AI with existing catalogue product viewer enabling data generation and storage to a database using Vue3, MySQL, C#, .NET and Firebase. Achieved 35% adoption rate by clients in the first month.
Grade Analysis Database (University Project) at Saxion University / University Project
January 1, 2022 - PresentCreated a database to log and store school results for each year and subject using MySQL. Enables users to analyze and identify trends in their results to achieve better results.
Penetration Testing - Simulation at University Project
April 1, 2021 - September 8, 2025Simulated a Man-in-the-Middle attack between a Windows 10 server and machine in isolated VMware environments. Escalated privileges to gain root access utilizing Kali Linux, Metasploit, Nmap, Burp Suite and other tools. Documented the vulnerabilities and fortified the system for the future.
Education
Bachelor's degree at Saxon University Enschede, Netherlands
August 1, 2020 - August 31, 2024Bachelor's degree in Game Technologies Engineering at Saxion University of Applied Sciences
January 11, 2030 - August 1, 2024Bachelor's degree in Game Technologies Engineering at Saxion University of Applied Sciences, Enschede
August 1, 2024 - September 8, 2025Bachelor's degree in Game Technologies Engineering; Minors in C++ and Unreal Engine at Saxion University, Enschede, Netherlands
August 1, 2024 - September 8, 2025Bachelor's degree in Game Technologies Engineering at Saxion University Enschede
August 1, 2024 - September 8, 2025Bachelor's degree in Game Technologies Engineering at Saxion University, Enschede, Netherlands
August 1, 2024 - September 8, 2025Bachelor’s Degree in Game Technologies Engineering (Major in Game Technologies Engineering; Minors in C++ and Unreal Engine) at Saxion University, Enschede, Netherlands
January 11, 2030 - August 1, 2024Qualifications
Penetration Testing - Simulation
April 1, 2021 - September 8, 2025Penetration Testing - Simulation
April 1, 2021 - September 8, 2025Industry Experience
Gaming, Software & Internet, Education, Manufacturing, Travel & Hospitality, Media & Entertainment, Professional Services
Skills
See more
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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