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June 27, 2026

Senior C# Automation Tester – Distributed Systems

Senior • Remote

19,950 - 22,050 PLN

Wroclaw, DS, Poland

Ignite the future of quality assurance — drive innovation through cutting-edge testing excellence! Wroclaw-based opportunity with remote work model.

As a Senior C# Automation Tester, you will be working on developing advanced financial ecosystems. You will help build and ensure the reliability of a critical component within a new, innovative platform designed to streamline debt management processes across multiple markets. Join a project focused on shaping scalable, resilient systems that empower financial services through top-tier quality assurance and automation.

Your main responsibilities

  • Develop and execute comprehensive test scenarios for functional, regression, and integration testing in a complex, distributed environment.
  • Collaborate with developers and Product Owners to define testing strategies aligned with domain-driven design (DDD).
  • Automate test cases for UI, API, and end-to-end processes using tools like Cypress, Playwright, and related frameworks.
  • Validate system integrations and message-driven architectures using REST API testing and messaging queues.
  • Maintain and enhance CI/CD pipelines using GitLab CI/CD and GitHub Actions.
  • Monitor system performance and reliability using Grafana dashboards.
  • Contribute to continuous improvement initiatives by analyzing requirements and recommending quality standards.
  • Support the team with test management tools such as Jira and Xray, ensuring traceability and documentation.

You’re ideal for this role if you have

  • 6+ years of experience as a Tester or QA Engineer, including at least 2 years in a senior role.
  • Strong background in testing distributed systems, microservices, and asynchronous messaging.
  • Practical knowledge of C#, .NET 10, xUnit, and automation tools like Cypress or Playwright.
  • Experience with test automation frameworks and CI/CD pipelines.
  • Familiarity with SQL, PostgreSQL, and container technologies such as Docker or Kubernetes.
  • Hands-on experience in testing REST APIs and event-driven architectures.
  • Solid understanding of Agile and Domain-Driven Design methodologies.

It is a strong plus if you have

  • Knowledge of Docker, Kubernetes, or OCP.
  • Experience with performance testing tools like JMeter or k6.
  • Web development skills (HTML, CSS, JavaScript).
  • Practical knowledge of BDD practices and AI-powered testing tools.

Language required for the role

  • Good command of Polish.

Eligibility for the role

  • Existing legal right to work in the European Union.

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Krakow, Poland

23,100 - 28,350 PLN

🏢 Summary: Senior Automation Test Engineer / Quality Engineer role focused on building and optimizing automated testing for back-end systems and mobile applications (iOS/Android) in a hybrid Krakow-based setup. The position drives quality initiatives, performance testing, and automation framework improvements while mentoring team members and collaborating with cross-functional teams. 🗂️ Requirements: 4+ years experience in automation or quality engineering, Proficiency in Java and Appium, Experience with mobile testing (iOS/Android), Experience with API and database testing, Experience with manual testing, Experience with performance testing tools, Ability to create and maintain test plans and strategies, Experience with CI/CD pipelines, Experience with version control systems, Fluent English, Legal right to work in the EU 📃 Skills: Java, Appium, JMeter, LoadRunner, REST, RESTAssured, SQL, Jenkins, Git, iOS, Android, CI/CD 🏢 Description: Unleash Innovation — Shape the Future of Quality Engineering! Krakow-based opportunity with hybrid work model. As a Senior Automation Test Engineer / Quality Engineer , you will be working for our client, a forward-thinking leader in technology solutions dedicated to elevating product quality through innovative testing strategies. This role is pivotal in driving seamless testing processes and nurturing a culture of excellence across the organization. Your main responsibilities: Develop and maintain automated test scripts targeting back-end systems and mobile applications (iOS/Android). Perform manual testing to validate critical functionalities and ensure comprehensive coverage. Create and maintain detailed test plans and strategies aligned with project requirements. Drive quality initiatives by defining metrics, optimizing workflows, and implementing best practices. Mentor and upskill the testing team, fostering a culture of continuous improvement. Conduct performance testing (e.g., JMeter, LoadRunner) and back-end testing (e.g., REST Assured). Optimize automation frameworks and adopt new testing tools and technologies. Collaborate with cross-functional teams to refine test strategies and ensure clear communication. You're ideal for this role if you have: 4+ years of experience as a Senior Automation Test Engineer or Quality Engineer. Strong proficiency in Java, Appium, and performance testing tools. Expertise in mobile app testing (iOS/Android), API/database testing, and manual testing. Experience in creating and maintaining test plans and strategies. Leadership skills to mentor teams and drive quality initiatives. Familiarity with CI/CD pipelines (e.g., Jenkins) and version control (e.g., Git). Excellent communication and problem-solving skills. It is a strong plus if you have: Certifications in testing or automation tools (optional). Language Required for the role: Fluent in English, with excellent communication skills. Eligibility for the role: Only candidates with an existing legal right to work in the European Union will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.