Andrei Unuchak

Warsaw, Poland

• AI Quality Engineering: Built custom scoring metrics (LLM-as-a-judge) to quantify output accuracy and mitigate hallucination rates, establishing data-driven validation for AI agent production readiness.
• API Automation & Integrity: Engineered functional automated tests for RESTful APIs to validate request-response cycles, status codes, and data integrity, catching integration defects early in the SDLC.
• Requirement Analysis & Risk Mitigation: Collaborated with cross-functional teams to review requirements, identify testable components, and resolve ambiguities, preventing architectural and functional defects prior to code delivery.
• Release Gatekeeping: Executed targeted smoke and sanity suites to validate build stability and verify code fixes, ensuring zero regression leakage into core functional branches.

Java, Selenium, RestAssured, Awaitility, JDBC, JUnit5, Postman, Docker, Jenkins, GitLab

Minsk, Belarus

• Regression & Integration Strategy: Conducted comprehensive end-to-end integration and regression testing, securing seamless data compatibility between internal modules and maintaining overall system uptime.
• Test Suite Optimization: Designed and maintained structured automated and manual test suites derived from system specifications and user stories, directly improving functional and usability test coverage.
• Data Validation & Root Cause Analysis: Authored database verification queries and performed necessary data adjustments to isolate root causes in system logs, accelerating time-to-resolution for complex backend defects.
• Agile Process Optimization: Contributed active technical feedback during software design reviews and Agile planning phases, streamlining implementation tracks and optimizing development velocity.

Manual & automated testing, SQL (MySQL, PostgreSQL), Agile/Scrum, Jira

Minsk, Belarus

• Exploratory & Edge-Case Discovery: Performed exploratory test campaigns targeting undocumented system behaviours and edge cases, preventing edge-case defects from reaching end users.
• Defect Lifecycle Management: Owned the end-to-end bug tracking workflow, delivering unambiguous documentation, explicit steps to reproduce, and comprehensive test reports that accelerated developer fix cycles.
• Hardware-Software Integration: Validated wireless communication protocols (Bluetooth, Wi-Fi), video streaming modules, and automated telephony logic within a complex hardware-software ecosystem of mobile applications.
• Cross-Functional Delivery: Partnered with engineering and product management stakeholders to align quality metrics, ensuring high-quality software releases aligned with deployment deadlines.

Manual testing, mobile hardware integrations, Bluetooth/Wi-Fi, Bugzilla