C# Automation Tester Krakow or Wroclaw - Poland

On behalf of our client, we are looking for a highly skilled Senior Test Automation Engineer to join an elite software engineering team. This role is tailored for a technical expert who thrives on building framework infrastructure from scratch, verifying complex back-end operations, and optimising automated delivery pipelines. This is a stable, long-term B2B collaboration focused on modern testing methodologies and continuous integration. Tech Stack Required Core Languages: Core C# UI Automation: Selenium WebDriver with C# API Automation: Rest Assured with c# Key Responsibilities Framework Infrastructure: Design, implement, and scale end-to-end BDD automation frameworks using C#, Selenium API & UI Testing Execution: Write and run seamless automated UI scripts alongside thorough back-end API automation suites using Rest Assured . Pipeline Deployment: Fully embed your functional testing scripts into active DevOps CI/CD pipeline implementations . Database Level Validation: Complete extensive data testing cycles by writing precise SQL scripts across multiple DB platforms. Root Cause Failure Isolation: Track down test flakiness, inspect application system logs, and actively debug automated script failures. Requirements & Qualifications 4+ Years of recent, continuous hands-on experience in UI Automation using Selenium with C# What the B2B Contract Offers Transparent, long-term B2B contractual agreement with consistent billing terms. Highly professional, flat-structured engineering team culture. Access to cutting-edge cloud infrastructure and modern DevOps environments.