Liudas User

Building Rentgen.io, an open-source API testing and security platform focused on automated API discovery, protocol-level testing, and API robustness validation.

My work focuses on API testing research, automated discovery, protocol-level testing, and practical tools for software quality engineers.

Publications include the Automation Before Automation (ABA) white paper and ongoing research on mod

• Lead the QA strategy and execution for mission-critical defence systems.
• Collaborate with cross-functional teams to ensure system reliability, security, and scalability.
• Implement automated testing frameworks and resilience testing methodologies tailored to unique system requirements.
• Drive quality improvements and risk mitigation for highly regulated and secure environments.

Worked as Executive board member at LTSTQB at LTSTQB® - Lithuanian Software Testing Qualifications Board.

• Software quality consulting and testing strategy
• Hands-on API, performance, security and resilience testing
• Publishing software testing research and technical articles
• Professional training and mentoring
• Organizer of Lithuania's first software testing hackathon

Software testing course program:
• Introduction to software testing and SDP life cycle.
• Testing techniques and types.
• Non functional requirements testing.
• API testing.
• Security testing and intro to OWASP.
• Automated testing tools.
• Automated tests with JAVA ans selenium.
• Introduction to Junit and TestNG testing frameworks.

• Meeting with the software/product designers to determine quality assurance parameters.
• Working closely with the QA team in designing QA test procedures.
• Implementing testing procedures and overseeing the QA process.
• Troubleshooting quality issues and modifying test procedures.
• Conducting analysis checks on product specifications.
• Generating & reviewing Quality Assurance reports.
• Ensu

• Gathering requirements and expressing them in Gherkin.
• Driving product development through automated tests.
• Working closely with other team members to deliver user stories.
• Joining in and helping to improve agile rituals.
• Performing peer code reviews.
• Contributing to the team drive for excellence through knowledge sharing.

• Testing process implementation.
• Full integration and system testing of blockchain based Mobile app.
• Testing frameworks implementation for Mobile/Web apps and REST API.
• Ethereum smart contracts manual and automated testing.
• Bug bounty program implementation and management (https://bounty.monetha.io).
• Performance and security testing.
• Organized large scale testers hackathon for Monetha

• Full stack QA process implementation and execution.
• Test strategy implementation.
• Performance testing in big scale (more than 1 million rec/s).
• Integration and System automated checking.
• Security/penetration testing.
• Big data testing.
• REST/SOAP API testing.
• Hiring process, interviewing candidates.
• Working closely with QA team, aligning testing strategies, testing scope, release p

Worked as Senior QA Engineer at Adform.

Worked as QA Engineer at Adform.

Pursued a Bachelor's degree in Informatics at Vilnius University from 2004 to 2008.