SDET API with Python | Warsaw & Gdansk

We're looking for an experiencedSoftware Development Engineer in Test to join a fast-paced, high-impact project in thefinancial / payments domain.

Contract: B2B

Work Mode: Hybrid 3 days from Warsaw/Gdansk office

Contract duration: Minimum 6 months and will be extended

Expected start date: Immediate

Job Description:

Mid-senior test automation engineer who can take ownership of quality for a complex, backend-heavy product area in Treasury Test Engineering. The role is automation-first: the person should be comfortable driving a high automation ratio (roughly 80% automation / 10-20% manual where needed) and continuously improving reliability, coverage, and feedback speed in CI/CD.

Technical skills (must-have):

• Strong Python for test automation; writes clean, maintainable test code and utilities.
• Solid API/backend testing skills with Pytest ( fixtures, parametrization, assertions, test organization); can design robust automated coverage for business flows, including integration/interface testing with partner systems/teams.

• CI/CD experience (e.g., Jenkins or similar): can integrate tests into pipelines, troubleshoot flaky runs, improve reporting, and keep pipelines healthy.

• Comfortable debugging failures end-to-end (logs, root cause analysis, reproductions) and using standard debugging tools; can analyze issues and validate assumptions quickly.
• Linux familiarity (shell, environment/debugging basics) and SQL basics for data validation and troubleshooting.

Roles and Responsibilities post joining:

• Ownership & proactivity: spots gaps in coverage, stability, or process and drives improvements without being asked; follows through to completion.

• Clear communication: writes concise updates, defects, and test notes; can explain failures and risk clearly to engineers and stakeholders.

• Collaboration: works effectively with Dev/DevOps/Product in agile teams, participates in design discussions and contributes to quality strategy.

• Quality-first mindset: challenges assumptions, prioritizes customer impact and reliability, and balances speed with robustness.

Qualification and experience:

Mid Level - 3-4 years of relevant experience

Mandatory skills:

• Strong Python for test automation

• Solid API/backend testing skills with Pytest

• CI/CD experience

• Linux familiarity

Desired skills:

• UI test automation with Playwright (page objects, stable selectors, handling async/flakiness) - UI is a plus, backend/API is priority
• Experience testing modern services (REST/microservices)
• Practical use of GenAI tools to accelerate test development while maintaining quality

Benefits

• Stable long-term cooperation with opportunity for extension

• Opportunity to work with modern technologies in an international environment

• Professional growth and continuous development opportunities

• Participation in challenging and impactful projects

If you're interested and meet the qualifications, please send your CV to Alina Pchelnikova at

[email protected]