Jozsef "Joey" Valentin

Hi there!
I'm a software engineer with experience building scalable backend systems, cloud-native applications, automation, and interactive 3D experiences.
I hold a Bachelor's degree in Computer Science, with a background spanning backend engineering, client-side development, game AI, and Unreal Engine 5.

Skills

Technologies and tools I've worked with across backend engineering, frontend development, DevOps, cloud, mobile, and game development:

Languages

Java, Kotlin, Python, JavaScript, C++, C#/.NET, SQL, HTML/CSS

Version Control

Git, GitHub, Perforce

Backend

Spring Boot, Node.js, JUnit, Kafka, MongoDB, Google BigQuery, GraphQL

DevOps & Cloud

Docker, Kubernetes, Google Cloud Platform, CI/CD, Datadog, Kibana

Client & Game Development

React, Android SDK, Unreal Engine 5, Blueprints, C++, game AI, 3D visualization

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Thesis Project

Adaptive enemy AI for an ARPG in Unreal Engine 5
Built an adaptive enemy AI system based on dynamic player behavior profiling, using Unreal Engine 5, AI behavior systems, and gameplay statistics.

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Research & Development Internship

Created a real-time 3D visualization product in Unreal Engine 5. Reduced the 3D import pipeline from hours to minutes and improved performance to 2x FPS through GPU optimization and asset compression. Integrated multi-user session management and ported a lightweight VR version to headsets.

ITandFactory GmbH, NDA

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Unreal Engine 5 Projects

Led AI design and NPC system implementation for survival horror and ARPG-style Unreal Engine 5 projects using C++ and Blueprints. Developed a modular AI system adapting to player behavior patterns and refined it through feedback from 20+ players.

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University Project #1

AI agent in Unreal Engine 5, utilizing behaviour trees, interaction with the environment and AI perception.

Kotlin icon for the KotlinAir and Turisztikon projects

KotlinAir & Turisztikon

KotlinAir: Built and published a Kotlin application for processing and analyzing real-world airport and flight datasets, with ETL logic that improved reliability and processing speed by 50%. View the GitHub repository.

Turisztikon: Created an Android app for discovering and storing tourist sites with offline support, integrating Google Maps API and Room DB for persistent geolocation tracking. This project was not published.

Contact

If you have a question, a project in mind, or just want to say hello, I'd love to hear from you. Send me a message via email, LinkedIn or GitHub.