Contractor Senior Software Tester (contract)

Mirantis is hiring a remote Contractor Senior Software Tester (contract). The career level for this job opening is Experienced and is accepting Poznań, Poland based applicants remotely. Read complete job description before applying.

Mirantis

Job Title

Senior Software Tester (contract)

Posted

Career Level

Contractor

Career Level

Experienced

Locations Accepted

Poznań, Poland

Job Details

Key Responsibilities
  • Testing Strategy & Leadership: Contribute to driving the overall QA strategy for Kubernetes and cloud-native environments. Evaluate and champion best practices for distributed systems. Lead risk analysis and test planning.
  • Architecting Test Systems: Architect test frameworks for validating microservices in multi-cluster and hybrid-cloud environments. Oversee the design of complex test scenarios.
  • Automation & Scalability: Spearhead the development of scalable test automation integrated with CI/CD. Leverage Kubernetes APIs to build comprehensive automation coverage. Promote test infrastructure-as-code.
  • Mentorship & Technical Influence: Mentor QA engineers in advanced testing techniques. Serve as the QA authority in design reviews. Collaborate with engineers to refine monitoring and debugging strategies.
  • Quality Advocacy & Continuous Improvement: Establish quality gates and release readiness metrics. Drive initiatives to integrate performance, security, and chaos testing. Advocate for a culture of quality.
Experience
  • 10+ years in software testing, with 4+ years focused on Kubernetes, cloud-native applications, and distributed systems.
  • Proven leadership experience in building and scaling test strategies.
Technical Proficiency
  • Deep understanding of Kubernetes internals, Helm, service meshes, and network policies.
  • Strong scripting and automation capabilities (Python, Pytest, Bash, etc.).
  • Familiarity with observability stacks, Kubernetes security, and performance benchmarking tools.
  • Solid grounding in cloud architecture, infrastructure provisioning, and containerized CI/CD.
  • Moderate to advanced linux knowledge.
Leadership & Collaboration
  • Exceptional problem-solving and architectural thinking.
  • Experience influencing cross-functional teams.
  • Excellent communication skills.
  • Mentorship and coaching of junior team members.

FAQs

What is the last date for applying to the job?

The deadline to apply for Contractor Senior Software Tester (contract) at Mirantis is 18th of December 2025 . We consider jobs older than one month to have expired.

Which countries are accepted for this remote job?

This job accepts [ Poznań, Poland ] applicants. .

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