Manual Tester

We are looking for a detail-oriented Manual Test Engineer to join our QA team and ensure the quality reliability and stability of business-critical applications. This role focuses on functional and backend testing with a strong emphasis on data validation SQL analysis and verification of complex business processes.

Working closely with Developers Business Analysts Product Owners and QA Engineers you will play a key role in delivering high-quality software by identifying defects validating data integrity and continuously improving testing processes within an Agile environment.

The position requires 5 days/week in the office in Warsaw.

• Plan design and execute manual test cases for functional integration and regression testing.

• Validate application functionality against business and technical requirements.

• Perform end-to-end testing across multiple application components.

• Execute data validation and backend process testing.

• Write and execute SQL queries to verify data integrity investigate issues and validate business logic.

• Analyze database records application logs and data flows to identify defects and root causes.

• Test REST and SOAP APIs to ensure correct system integration and data exchange.

• Create and maintain comprehensive test documentation including test cases test scenarios and execution reports.

• Log track and verify defects using Jira or similar defect management tools.

• Support continuous improvement of QA standards methodologies and testing processes.

• Work closely with Developers Business Analysts Product Owners and QA team members throughout the software development lifecycle.

• Participate actively in Agile ceremonies including Sprint Planning Daily Stand-ups Reviews Retrospectives and PI Planning.

• 3 years of commercial experience as a Manual Tester or QA Engineer.

• Experience testing enterprise or business-critical applications.

• Experience working in Agile/Scrum environments.

• Strong SQL skills including complex queries (JOINs subqueries GROUP BY).

• Hands-on experience with relational databases such as PostgreSQL Oracle MS SQL Server or MySQL.

• Experience testing backend systems and data-driven applications.

• Practical experience testing REST and SOAP APIs.

• Familiarity with Jira Azure DevOps TestRail or similar QA management tools.

• Strong understanding of software testing methodologies and defect lifecycle management.

• Strong analytical and problem-solving abilities.

• Excellent attention to detail and organizational skills.

• Ability to work independently while collaborating effectively within cross-functional teams.

• Strong communication skills and proactive approach to quality improvement.

• Basic knowledge of test automation tools (Selenium Postman).

• Basic programming or scripting experience (Python or Java).

• Familiarity with CI/CD pipelines and modern software delivery practices.

• Opportunity to work on business-critical applications with a highly experienced QA team.

• Career growth towards test automation backend testing or QA specialization.

• Flexible working hours.

• Access to professional training mentoring and continuous learning opportunities.

• Collaborative Agile environment with real impact on product quality.