Senior SDET: Playwright & API Automation Lead

OpenX; Poland; Hybrid; PLN 252,000 - 282,000; Full time

Benefits offered by this job

Annual performance bonus

Private health care for you and your

Job summary

OpenX Poland is seeking a Senior Software Development Engineer in Test to own test automation for UI (TypeScript/Playwright) and API (Java/Python) across the Marketplace platforms. You will build and maintain frameworks, accelerate CI/CD, and drive quality across complex workflows in a high-scale ad tech environment.

You will collaborate with SDETs, software engineers, and stakeholders, grow in a cloud-native stack (GCP, Kubernetes, Docker, Spinnaker), and contribute to robust testing strategies

Qualifications

• 5+ years of experience in test automation or SDETs.
• Strong hands-on experience with TypeScript and Playwright.
• API testing in Java and/or Python, ideally with pytest.
• Experience with CI/CD tooling and pipelines.
• Experience with Google Cloud Platform, Kubernetes, Docker, Spinnaker, or similar technologies.
• Excellent troubleshooting and communication skills.
• Communicative Polish and English.

Responsibilities

• Own, build, and evolve UI (TypeScript/Playwright) and API (Java/Python) test automation frameworks used across the organization, designing and maintaining tests across both layers for complex Marketplace workflows and integrations.
• Improve the reliability, speed, and maintainability of test automation frameworks and CI/CD pipelines.
• Be involved in all phases of platform development, from requirements and architecture design to validation, deployment, and release readiness.
• Partner with engineers and stakeholders to identify quality risks early, applying risk-based testing for coverage decisions.
• Investigate test failures, flaky tests, and production issues, driving root cause analysis with actionable improvements.
• Communicate quality risks, trade-offs, and recommendations clearly to engineering, product, and business stakeholders.

Skills

TypeScript

Playwright

API testing

CI/CD tooling

Agile engineering

Communication skills

Polish language

English language

Tools

GCP

Kubernetes

Docker

Spinnaker

Pytest

Job description

OpenX Poland is seeking a Senior Software Development Engineer in Test to own test automation for UI (TypeScript/Playwright) and API (Java/Python) across the Marketplace platforms. You will build and maintain frameworks, accelerate CI/CD, and drive quality across complex workflows in a high-scale ad tech environment.

You will collaborate with SDETs, software engineers, and stakeholders, grow in a cloud-native stack (GCP, Kubernetes, Docker, Spinnaker), and contribute to robust testing strategies