Middle Test Automation Engineer (AdTech Platform)

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Are you passionate about building robust test automation frameworks from scratch and shaping testing strategies for complex, high-load systems? We are looking for a Middle Test Automation Engineer to join our team and contribute to the success of a cutting‑edge AdTech platform.

Why join us? You’ll work on a platform that processes up to 1 million QPS, with real-time analytics and sophisticated auction logic. You’ll have the freedom to design and implement the testing approach, ensuring quality and performance at scale, while contributing to a product that directly impacts the global digital advertising ecosystem.

Customer

Our customer is a leading digital media organization specializing in scalable, high-performance advertising platforms. Operating globally, they empower publishers and advertisers through innovation, transparency, and data‑driven decision‑making.

Project

We are developing a high‑performance advertising technology platform. This solution integrates supply‑side capabilities for publishers with demand‑side platforms, enabling real‑time bidding, inventory management, and performance analytics. The platform includes modules for auction logic, cookie synchronization, event tracking, and compliance mechanisms.

Job Description

• Create Web API test automation framework from scratch (Playwright + TypeScript)
• Plan and design test automation approach
• Integrate automated tests into CI/CD pipelines
• Automate tests provided by manual testers
• Collaborate with developers to ensure maintainability of automated tests
• Support automation by actualizing, stabilizing, and reporting bugs
• Use Cursor to improve efficiency in development and support

Qualifications

• 4+ years of experience in test automation
• Strong TypeScript/JavaScript skills
• Strong Playwright experience
• Strong Web API testing skills
• Strong mocking skills
• Good SQL knowledge
• Strong understanding of code design patterns and principles
• Experience with Cursor/Copilot
• Experience with CI/CD
• Strong test planning and estimation skills
• Strong knowledge of test design and testing pyramid
• Upper‑Intermediate English level

Seniority Level

Entry level

Employment Type

Full‑time

Job Function

Information Technology

Industries

Software Development and IT Services and IT Consulting

Warsaw, Mazowieckie, Poland