Job Description

Position Summary

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.

Key Responsibilities

Test Design & Execution

• 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.

Database & Backend Testing

• 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.

Quality Assurance

• 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.

Collaboration

• 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.

Required Qualifications

Experience

• 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.

Technical Skills

• 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.

Soft Skills

• 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.

Nice to Have

• 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.

What We Offer

• 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.