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Test Automation Engineer .NET / C - Billennium

QA Engineer

We're looking for a QA Engineer focused on designing and building scalable technical solutions. This mid level role requires 3+ years of relevant experience.

About the role

Test Automation Engineer .NET / C at Billennium.

Key technologies: Selenium, Test Automation, Cypress.

Key Responsibilities

Design and implement automated test suites (unit, integration, e2e)
Define testing strategies and quality standards across the SDLC
Identify, document and track bugs through to resolution
Collaborate with developers to shift-left testing practices

Requirements

3+ years of relevant experience in qa engineer
Experience with CI/CD integration and test pipeline management
Strong analytical and debugging skills

Skills

seleniumtest automationcypress

CompanyBillennium

DepartmentEngineering

LocationWarsaw, Poland

Experience3+ years

Tenurefull-time

LevelMid-Level

Posted July 21, 2026