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Senior Software Engineer in Test IV (TS/Python)

4 weeks, 1 day ago
Poland
Full-time
Senior
SDET (Software Development Engineer in Test)
Software Development
Agile CI/CD Cypress Docker GCP Go GraphQL Java Kubernetes Node.js Playwright Pytest Python React Scrum Spinnaker TypeScript
Apply Now
OpenX

OpenX

OpenX is a global leader in digital and mobile advertising technology, fostering a fair and transparent value exchange between publishers and advertisers to maximize revenue across all screens.

Media
51-250
Founded 2007
$71M raised
View All Jobs 5

Description

  • Design and maintain reliable automated tests across TypeScript-based UI and Python API layers.
  • Own and evolve test automation for complex frontend user workflows.
  • Build, maintain, and improve automated UI test suites using Playwright and TypeScript.
  • Contribute to API integration and end-to-end testing strategy, automation, and coverage using Python and pytest.
  • Participate in all phases of product development, from requirements and solution design to validation, deployment, and release readiness.
  • Partner with software engineers, product managers, and UX designers to identify quality risks early and improve testability.
  • Apply risk-based testing practices and make pragmatic decisions about coverage across unit, integration, API, and end-to-end levels.
  • Improve the reliability, speed, and maintainability of test automation frameworks and CI/CD pipelines.
  • Investigate test failures, flaky tests, and production issues, and drive root cause analysis with actionable improvements.
  • Communicate quality risks, trade-offs, and recommendations clearly to engineering and product stakeholders.

Requirements

  • 5+ years of professional experience in test automation or software engineering in test.
  • Strong hands-on experience with TypeScript and modern frontend test automation frameworks such as Playwright or Cypress.
  • Ability to design, debug, extend, and maintain test automation frameworks and shared testing utilities.
  • Strong understanding of modern frontend applications, user workflows, API integration, asynchronous behavior, and common sources of UI test instability.
  • Experience with API testing and practical experience with Python, preferably with pytest, or a strong willingness to work with Python-based API test automation.
  • Practical knowledge of test design techniques and risk-based testing.
  • Experience working with CI/CD tools and improving automated test execution in CI environments.
  • Excellent troubleshooting skills and ability to triage complex issues across application, test, and infrastructure layers.
  • Experience working in an agile engineering environment.
  • Communicative Polish and English.
  • Experience with Python test automation (preferred).
  • Experience testing React-based applications (preferred).
  • Experience with Google Cloud Platform, Kubernetes, Docker, Spinnaker, or similar cloud and deployment technologies (preferred).
  • Experience with API contract testing, integration testing, or service-level testing (preferred).
  • Familiarity with advertising technology, digital media, or the advertising ecosystem (preferred).

Benefits

  • Employment contract with 22 595 - 25 254 PLN gross per month or B2B at 181 - 202 PLN net per hour.
  • Annual performance bonus.
  • Tax-deductible system due to copyright protection: 75%.
  • Private health care for you and your family, covered by OpenX.
  • Private life and travel insurance, including COVID insurance.
  • MultiKafeteria program.
  • Access to LinkedIn Learning and tech workshops.
  • Holiday allowance and pension scheme (PPK from PZU).
  • Additional paid day off.
  • Free parking lot.
  • Monthly work-from-home allowance and a one-time home office setup payment.
  • Peer-to-peer recognition platform and milestone vouchers or gifts.

Interested in this position?

Apply directly on the company website

Apply Now

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