Senior Software Engineer in Test IV (TypeScript/Python)

TL;DR

Senior Software Engineer in Test IV (TypeScript/Python): Designing and maintaining automated tests for UI and API layers of a high-scale ad exchange with an accent on TypeScript-based frontend automation and Python-based API testing. Focus on evolving test automation for complex user workflows, improving CI/CD pipeline reliability, and identifying quality risks in a distributed cloud environment.

Location: Remote (Poland) / Krakow

Salary: 22 595 - 25 254 PLN gross/monthly or 181 - 202 PLN net/hourly

Company

hirify.global is a global ad exchange connecting thousands of publishers with demand partners across the advertising ecosystem.

What you will do

• Design and maintain reliable automated tests across TypeScript-based UI and Python API layers.
• Build and improve automated UI test suites using Playwright and TypeScript.
• Contribute to API integration and end-to-end testing strategies using pytest.
• Partner with software engineers, product managers, and UX designers to identify and mitigate quality risks early.
• Optimize CI/CD pipelines (Spinnaker) for increased reliability, speed, and maintainability.
• Investigate test failures and production issues to drive root cause analysis.

Requirements

• 5+ years of professional experience in test automation or SDET roles.
• Strong expertise with TypeScript and modern frameworks like Playwright or Cypress.
• Practical experience with Python and pytest for API test automation.
• Proficiency in test design techniques and risk-based testing.
• Experience working with CI/CD tools in an agile engineering environment.
• Communicative Polish and English.

Nice to have

• Experience testing React-based applications.
• Knowledge of Google Cloud Platform (GCP), Kubernetes, Docker, or Spinnaker.
• Experience with API contract testing and service-level testing.
• Familiarity with the AdTech ecosystem or digital media.

Culture & Benefits

• Flexible working hours and remote work options.
• Annual performance bonus and holiday allowance.
• Private health and life insurance for employees and their families.
• Professional development via LinkedIn Learning and technical workshops.
• MultiKafeteria program and monthly home-office allowance.
• Additional paid days off and peer-to-peer recognition platform.