Summary
QA Tester / Junior Game Developer with 5+ years of
hands-on game development experience.
Strong generalist with proven ability to identify systemic issues, reproduce bugs, and communicate fixes clearly to developers.
Background in high-pressure live broadcast environments, bringing calm execution, fast problem-solving, and strong team communication. Experience in Unreal Engine, gameplay systems, and production workflows.
Work Experience
QA Tester
Jan 2023 - July 2023
Kool2Play
Functional and exploratory testing during development of a twin-stick shooter URAGUN
Clear bug reproduction, documentation, and communication with developers
Provided structured gameplay feedback alongside QA duties
One gameplay/weapon trait proposal implemented into the final release
Worked directly with the dev team close to 1.0 launch under time pressure
I had worked with Jarek for several months prior to the Uragun 1.0 launch, and I must say that he is one of the most dedicated and hardworking folks I have cooperated with. His passion for games is tangible, and his eye for detail is superb. He had a real influence on the final quality of our game, and we owe him a lot! He is one of those guys who embodies great determination and deserves a chance in the game development industry.
Mario Leśniewski
Head of Studio @Kool2Play
Solo Game
Designer / Developer
2019 - Present
Independent
Designed and developed multiple small game prototypes from scratch
Focus on moment-to-moment gameplay, combat feel, player feedback, and usability
Rapid prototyping, iteration, and testing across Flat-screen PC and VR
Experience identifying design flaws through playtesting and fixing them directly in-engine
Live / Broadcast / Studio Freelance Sound Engineer
2010 - Present
Various clients
Worked on high-profile live and broadcast productions including esports (League of Legends World Championship) and televised sports (Formula 1 GP)
Operated in time-critical, failure-intolerant environments
Required precise technical troubleshooting under pressure
Daily collaboration with multidisciplinary teams (engineering, production, talent)
Skills & Tools
QA & Production
Bug reproduction, documentation, prioritization
Jira, Confluence, Trello, MS Office, Miro
Analytical testing of user flow, edge cases
and system interactions
Engines & Tech
Unreal Engine 5 (Blueprints, basic C++)
Unity (basic C#)
Strengths
Clear written and verbal communication
Outstanding in time-constrained technical problem-solving
Calm and effective in high-pressure environments
Strong collaboration and feedback culture
Languages
Fluent English
Fluent Polish
Education
Elektroniczne Zakłady Naukowe - Wroclaw, Poland
Associate Degree in Computer Science
Regionalny Ośrodek Edukacji - Wroclaw, Poland
Associate Degree in Sound Engineering