Software Tester / QA Engineer
Summary
Junior Software Tester with hands-on experience in functional and exploratory testing of complex interactive systems.
Strong generalist with a background in real-time, failure-intolerant environments (broadcast engineering) and production QA on a shipped commercial product.
Known for fast issue reproduction, clear documentation, and calm problem-solving under pressure. Comfortable working closely with developers and non-technical collaborators.
Work Experience
Software / QA Tester
Jan 2023 - July 2023
Kool2Play
Functional and exploratory testing of a production software product (real-time interactive application)
Identified, reproduced, and documented defects with clear steps and expected vs actual behavior
Collaborated directly with developers during late-stage development and release preparation
Reported usability issues, edge cases, and regression problems
Contributed structured product feedback beyond strict defect reporting when appropriate
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 industry.
Mario Leśniewski
Head of Studio @Kool2Play
Independent Software / Systems Tester & Prototyper
Self-employed
2019 - Present
Tested software prototypes self-built in UNREAL ENGINE with focus on system behavior, user flow, and failure modes
Designed test scenarios based on real user behavior rather than ideal paths
Reproduced and fixed defects directly, improving understanding of root causes
Regularly validated changes through regression-style testing during iteration cycles
Experience testing performance-sensitive and real-time systems (including VR applications)
Freelance Live & Broadcast Systems Engineer
2010 - Present
Various clients
Operated and tested mission-critical systems in live broadcast environments
Diagnosed and resolved technical faults under strict time constraints
Performed pre-event system checks, signal verification, and failure contingency planning
Worked closely with engineering, production, and operations teams
Maintained reliability standards where downtime or errors were not acceptable
Skills & Tools
Testing & QA
Functional and exploratory testing
Regression awareness in QA
Bug reproduction and documentation
Risk-based testing mindset
Tools & Workflow
Jira, Confluence
MS Office, Adobe Suite, Trello, Miro, Nuclino
Unreal Engine, Unity, Basics of C++ and C#
Technical
Understanding of software architecture at a practical level
Familiar with all facets of game development in Unreal Engine environment
Comfortable reading technical documentation and logs
Strengths
Fast analytical problem-solving
Clear, precise communication
Calm under pressure
Strong collaboration with technical teams
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