Test Engineer (Manual Tester)

TEST ENGINEER (MANUAL TESTER)

Location: Warsaw
Work model: On-site (5 days per week)

B2B via Experis

B2B rate: 100-130 PLN netto+VAT/h

Full-time job

Job description
We are looking for a Test Engineer to join our team responsible for ensuring the quality of key business applications. The ideal candidate has hands-on experience in software testing, strong SQL skills, and practical knowledge of working with relational databases. The role focuses on functional testing, data validation, and backend process analysis.
 
Responsibilities

• Plan, design, and execute manual tests (functional, integration, regression).

• Perform data-focused testing, including validation of data flows, transformations, and backend processing.

• Write and execute SQL queries to validate data, investigate issues, verify test results, and support testing activities.

• Experience testing APIs (REST, SOAP).

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

• Create and maintain test documentation (test cases, test scenarios, test reports).

• Collaborate closely with developers, analysts, and Product Owners to understand requirements and resolve issues efficiently.

• Report and track defects throughout their lifecycle (using Jira or similar tools).

• Contribute to continuous improvement of testing processes and overall product quality.

• Participation in scrum ceremonies (PI Planning, Sprint Planning, Daily, etc.)

 
Requirements

• 3+ years of experience as a Manual Tester / QA Engineer.

• Strong SQL knowledge, including ability to write complex queries (JOINs, subqueries, GROUP BY).

• Experience testing backend systems or data-driven applications.

• Hands-on experience with relational databases (e.g., PostgreSQL, MS SQL, Oracle, MySQL).

• Ability to analyze business and technical requirements.

• Experience working with tools like Jira, Azure DevOps, or TestRail.

• Strong test documentation skills.

• Good understanding of testing techniques (equivalence partitioning, boundary value analysis, etc.).

• Solid organizational skills and ability to work independently.

• Experience working in Agile/Scrum environments.

 
Nice to Have

• Basic knowledge of test automation tools (e.g., Postman, Python, Java, Selenium).

• Familiarity with CI/CD pipelines.

 
What We Offer

• B2B contract via Experis

• Work in an experienced QA team with real impact on product quality.

• Opportunities to grow toward test automation or specialization in database testing.

• Flexible working hours.

• Access to training platforms and mentoring

• Medicover

• Multisport

• E-leaning platform

• Group insurance