Senior QA Engineer - Test Automation & Quality Strategy

Worldline; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Private medical & life insurance

Public transportation allowance

Annual bonus

Job summary

Worldline is seeking an experienced Senior Tester to lead quality strategy for software products in Warsaw. You will design test frameworks, mentor junior testers, and advocate for quality across the lifecycle.

You will work with Engineering and Product to reduce tech debt and ensure high-performing, reliable software. Core responsibilities include defining test strategies, building automation, improving processes, and providing technical leadership.

Qualifications

• 5+ years of Software QA experience shipping high-quality software.
• Experience building or maintaining scalable test automation frameworks.
• Hands-on CI/CD integration of automated tests (Jenkins, GitHub Actions, GitLab CI).
• Strong API testing with Postman or RestAssured and SQL-based validations.
• Analytical skills to assess risks and inform release readiness.

Responsibilities

• Define and implement test strategies, plans, and automation frameworks.
• Lead design and maintenance of automated test suites to reduce manual testing.
• Identify bottlenecks and apply industry best practices (CI/CD, shift-left).
• Act as QA SME, mentoring junior testers and guiding architecture decisions.
• Perform root cause analysis on production issues with developers.
• Collaborate with Product and Engineering to bake quality into requirements.

Skills

Software QA

Test automation

CI/CD integration

API testing

SQL validation

Tools

Postman

RestAssured

Jenkins

GitHub Actions

GitLab CI

Docker

Kubernetes

Job description

Worldline is seeking an experienced Senior Tester to lead quality strategy for software products in Warsaw. You will design test frameworks, mentor junior testers, and advocate for quality across the lifecycle.

You will work with Engineering and Product to reduce tech debt and ensure high-performing, reliable software. Core responsibilities include defining test strategies, building automation, improving processes, and providing technical leadership.