PAVLO KUCHERENKO
Krakow,Poland
Summary
Senior QA Engineer and QA Team Lead with 6+ years of experience in developing and optimizing quality assurance processes in fintech, web3, and crypto trading. Specializes in creating QA strategies that achieve 90% test coverage and designing robust technical support architectures. Demonstrated success in utilizing AI tools for efficient source code debugging and leading agile teams to enhance product reliability in complex environments.
Overview
8
8
years of professional experience
Work history
Senior QA Team Lead
Yellow Group
Krakow, Poland
2022.01 - 2026.07
- Led QA team and owned core testing for Web3 crypto exchange yellow.pro (spot and perp), news outlet and wallet yellow.com (reaching over 2 million registered users), and NFT game Duckies.
- Strategy & Product Ownership: Defined and executed robust end-to-end QA strategies for high-throughput exchange platforms, ensuring stable weekly Production rollouts.
- Test Coverage Excellence: Spearheaded development of comprehensive test coverage and parameters from scratch for product ecosystems, consistently delivering up to 90% test coverage on every project.
- AI Integration & Efficiency: Integrated AI agents (Claude) into QA workflows, increasing source code bug detection speed by 35% and enabling highly structured bug reports mapping precise fault locations.
- Optimised process and documentation: Leveraged AI tools to enhance internal and external documentation, test plans, and QA processes, achieving significant operational efficiency.
- Initiated pilot transition to automated regression testing frameworks using Playwright (JavaScript), supported by AI code assistants, to improve testing workflow.
- Security & Liquidity: Implemented and audited locking mechanisms for yellow.com wallet, contributing to secured asset liquidity up to $2m as verified by DefiLlama.
- Team Leadership & Process: Hired, mentored, and managed a cross-regional team of up to 5 QA engineers, establishing highly efficient agile workflows and best practices tailored for small, high-performing teams.
- Technical Operations: Performed deep-dive debugging of BE/FE source code using SQL queries and DBeaver for database validation on testing environments; leveraged GA4 for testing tag integrations and custom reporting.
- Designed Level 1 response protocol, Level 2 data collection checklists, and streamlined escalation process for a 3-person technical support function, improving bug resolution speed.
Middle QA Team Lead
Openware Inc (Merged into Yellow Group)
Kyiv, Ukraine
2019.12 - 2021.12
- Led QA team and acted as Core Test Owner for OpenDax trading platform, focusing on quality, reliability, and security of financial software and blockchain infrastructure.
- Led QA effort for Peatio matching engine adoption and blockchain scanner development, achieving 90% initial test coverage framework.
- Validated Barong authorization service and Baseapp frontend development, ensuring quality and reliability for institutional ecosystem.
- Mentored and onboarded new QA engineers in outsourced teams, established workflows for efficient delivery.
- Technical Operations & Support: Implemented institutional custody solutions including BitGo and self-custody cold wallets for enterprise security.
- Context: A premier digital asset software foundry and open-source blockchain infrastructure provider specializing in enterprise modular trading systems (OpenDAX).
Junior QA Specialist
Helios Technologies (Rebranded into Openwere Inc.)
, Ukraine
2018.03 - 2019.12
- Executed comprehensive test cases, ensuring platform quality and improving user experience across key features.
- Conducted daily manual testing for Gault&Millau, enhancing reliability of restaurant review and rating website.
- Developed QA expertise through manual testing of diverse outsourced web projects, contributing to overall project quality.
Education
Bachelor of Business Administration - Foreign economic activity
National Aviation University
Kyiv, Ukraine /2010 - /2014
Leadership
Leadership InMotion (LIM) Workshops
Thailand /2024 - /2025
Skills
- QA strategy development and test ownership
- Agile governance and sprint planning
- Team leadership and QA mentorship
- Technical support architecture and escalation design
- Production gatekeeping and release audits
- End-to-end testing
- AI-driven QA and source code debugging
- API and WebSocket validation
- GitHub PR verification and quality assurance
LANGUAGES
English (Professional Working)
Ukrainian (Native)
Russian (Native)
CORE COMPETENCIES
- QA Leadership & Strategy: Test Ownership, QA Strategy definition, Sprint Test Planning, QA Mentorship, Resource Allocation.
- Technical Expertise: Backend E2E Simulation, 90% Test Coverage Implementation, Integration Testing, SQL/Database validation, AI-driven QA processes (Claude).
- Product & Domain Knowledge: Web3, Blockchain Infrastructure, Cryptocurrency Trading Engines (Spot/Perp), FinTech, Risk Management.
Timeline
Senior QA Team Lead
Yellow Group
2022.01 - 2026.07
Middle QA Team Lead
Openware Inc (Merged into Yellow Group)
2019.12 - 2021.12
Junior QA Specialist
Helios Technologies (Rebranded into Openwere Inc.)
2018.03 - 2019.12
Leadership
Leadership InMotion (LIM) Workshops
/2024 - /2025
Bachelor of Business Administration - Foreign economic activity
National Aviation University
/2010 - /2014