Middle Test Automation Engineer (AdTech Platform)

Mid • Remote

Warsaw, Poland

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.

RESPONSIBILITIES

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

REQUIREMENTS

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

Sigma Software

Sigma Software is a dynamic company operating in the technology and software development industry. The company is committed to innovation and modernization, particularly in the realm of cloud ecosystems and business applications. Sigma Software values collaboration, support, and growth, fostering a work environment that emphasizes personal development and innovation. The company is involved in digital transformation projects, particularly in retail and E-commerce sectors, indicating a focus on integrating advanced technology solutions to enhance business operations. With a multicultural team, Sigma Software is dedicated to establishing best practices and technical excellence within the SAP landscape, showcasing its commitment to quality and forward-thinking solutions.