Senior QA Engineer for Mainframe to Cloud Migration

kubo • Poland
Remote
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AI Summary

We are seeking an experienced QA Engineer to lead test automation, integration with CI/CD pipelines, and ensure system quality during a Mainframe to Cloud migration project. The ideal candidate has 4+ years of experience in .NET, REST API, and CI/CD tools. Strong knowledge of .NET and C# is required.

Key Highlights
Lead test automation for Mainframe to Cloud migration
Integrate automated tests with CI/CD pipelines
Ensure system quality at every stage of transformation
Key Responsibilities
Creating, maintaining, and optimizing automated tests for REST API applications and services in the .NET environment (C#)
Designing test scenarios supporting the migration of applications from Mainframe to the cloud (integration, performance, and compatibility testing)
Integrating automated tests with CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions)
Analyzing and reporting bugs, collaborating with development teams and architects to resolve quality issues
Developing and implementing automated test strategies and recommending testing tools and frameworks
Technical Skills Required
.NET C# REST API CI/CD tools Azure DevOps Jenkins GitHub Actions
Benefits & Perks
120–160 PLN/h net (B2B)
Private medical care
Life insurance
Sports subsidy
Nice to Have
Knowledge of AI tools in testing (test case generation, anomaly detection, log analysis)

Job Description


We are looking for an experienced QA Engineer for a project related to the migration of systems from Mainframe to a cloud environment. You will be a port of the team responsible for test automation, integration with CI/CD pipelines, and ensuring system quality at every stage of this transformation. You will have an opportunity to work in steel industry (contract for 3-6 months, 100% remote from any place in Poland). The project is starting in May 2026.


Key responsibilities:

  • Creating, maintaining, and optimizing automated tests for REST API applications and services in the .NET environment (C#).
  • Designing test scenarios supporting the migration of applications from Mainframe to the cloud (integration, performance, and compatibility testing).
  • Integrating automated tests with CI/CD pipelines (Azure DevOps, Jenkins, GitHub Actions).
  • Analyzing and reporting bugs, collaborating with development teams and architects to resolve quality issues.
  • Developing and implementing automated test strategies and recommending testing tools and frameworks.


Ideal candidate profile:

  • Min. 4 years of experience as a QA Engineer.
  • Strong knowledge of .NET and ability to write automated tests for REST API in C#.
  • Experience in Mainframe-to-cloud migration projects (Azure, AWS, or GCP).
  • Knowledge of CI/CD tools and ability to work in a DevOps environment.
  • Experience in defining automated test strategies or building QA frameworks.
  • Good command of English (min. B2).
  • Experience in an international consulting environment.

Nice to have:

  • Knowledge of AI tools in testing (test case generation, anomaly detection, log analysis).


Conditions:

  • Work model: 100% remote anywhere from Poland
  • Rate: 120–160 PLN/h net (B2B)
  • Benefits: private medical care, life insurance, sports subsidy.


Recruitment steps:

  • Interview with KUBO recruiter (20-30 min)
  • Introductory interview with the client
  • Second interview with the client
  • Technical interview with the client
  • Decision and feedback


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