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Marcin Wolniak

@marcinwolniak

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QA Tester at Keywords Studios who reported 1,200+ game bugs and co-developed AI evaluation guidelines.

Poland

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At Keywords Studios, I tested a large-scale AAA game project across five platforms, reporting 1,200+ bugs and designing test cases for gameplay and platform-specific edge cases.

I also built Jira dashboards to track report accuracy and team statistics, and automated manual tasks by modifying PowerShell scripts. I authored a monthly performance tracker in Excel.

On the Amazon Project at Keywords Studios, I reviewed AI-generated trajectories and authored Chain-of-Thought annotations and human demonstrations for model fine-tuning and RLHF pipelines. I co-developed evaluation criteria and calibration guidelines, and wrote documentation that reduced rework and errors by approximately 30–40%.

I built lightweight AI-assisted automation tools with Google Apps Script (JavaScript), integrating Google Chat webhooks/API for evaluation tracking and reporting. I’m currently developing my API testing skills with Postman and automation skills through n8n Academy.

Experience

Work history, roles, and key accomplishments

Technical Researcher Associate

Keywords Studios

Jun 2025 - Jul 2026 (1 year 1 month)

Supervised technical quality for a ~10 person team within a 150+ person AI model training project for Amazon, ensuring adherence to evaluation procedures and documentation standards. Built lightweight AI-assisted automation tools in Google Apps Script using Claude and reviewed 8-12 model-generated trajectories daily.

AI model evaluation Trajectory Review Chain Of Thought Trajectory Annotation RLHF Google Apps Script JavaScript Claude Google Chat API Documentation Quality Assurance

QA Tester

Keywords Studios

Oct 2022 - Jun 2025 (2 years 8 months)

Performed functional, regression, and exploratory testing across 5 platforms on a large-scale AAA game project, reporting 1,200+ bugs and ensuring consistent quality through smoke testing before major releases. Designed and documented test cases and exploratory test scenarios covering core gameplay and platform-specific edge cases.

Functional Testing Regression Testing Exploratory testing Smoke Testing Jira Excel PowerShell Test Case Design QA

IT Service Desk Consultant

Exorigo-Upos S.A.

Mar 2021 - Jun 2021 (3 months)

Provided first-line technical support via phone, email, and ticketing systems, diagnosing hardware, software, and network issues. Ensured timely resolution according to SLAs by monitoring and prioritizing ticket progress.

Technical Support Troubleshooting Ticketing Systems SLA Management Documentation

Network Installation Technician

Mirasoft Sp z o. o.

Jul 2018 - Sep 2018 (2 months)

Installed and configured LAN/WAN network infrastructure, including running and terminating Ethernet cables (Cat5e, Cat6, mostly fiber optics). Documented installed infrastructure and labeled connections for future reference.

Network Installations LAN WAN Ethernet Cabling Fiber Optics Documentation