Senior Automation Software Tester
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Job Description
Senior automation tester building scalable QA systems for Mirantis’ secure Kubernetes container registry. Leading distributed-system testing, CI/CD automation, resilience validation, and quality strategy for cloud-native infrastructure.
Responsibilities:
- Contribute to the overall QA strategy for Mirantis Secure Registry, Kubernetes, and cloud-native environments
- Evaluate and champion testing practices and frameworks for distributed systems
- Lead risk analysis and test planning for multi-cloud registry, infrastructure, and container orchestration
- Architect test frameworks and infrastructure for microservices and infrastructure components
- Design complex test scenarios for production-like workloads, scaling, failure injection, and recovery across distributed clusters
- Develop scalable, maintainable test automation integrated with CI/CD
- Use Kubernetes APIs, Helm, and service mesh tools to build automation coverage for health, failover, and network resilience
- Promote repeatable, extensible, and reliable infrastructure-as-code
- Mentor QA engineers and developers in risk-based testing, chaos engineering, performance testing, and load testing
- Serve as QA authority in design reviews, production readiness assessments, and incident retrospectives
- Collaborate with DevOps engineers on monitoring, alerting, and debugging strategies for CI/CD test automation
- Establish quality gates, release readiness metrics, and data-driven feedback loops
- Integrate performance, security, and chaos testing into the development lifecycle
- Advocate for quality across teams and influence architecture decisions
Requirements:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field
- 10+ years in software testing or quality engineering roles
- 4+ years focused on Kubernetes, cloud-native applications, and distributed systems
- Proven leadership experience building and scaling test strategies in enterprise-grade environments
- Deep understanding of Kubernetes internals, cluster lifecycle management, Helm, service meshes, and network policies
- Strong scripting and automation capabilities with Python, Pytest, and Bash
- Familiarity with Prometheus, Grafana, Jaeger, Kubernetes security, and performance benchmarking tools such as K6
- Solid grounding in AWS, Azure, GCP, infrastructure provisioning, and containerized CI/CD
- Moderate to advanced Linux knowledge
- Experience with Bash scripting and debugging, systemd/logs, networking, firewalling, routing, certificate/PKI management, Docker/containerd, kubectl, Helm, OCI registries, and GitOps/Flux
- Exceptional problem-solving and architectural thinking
- Experience influencing cross-functional teams and senior leadership
- Excellent verbal and written communication skills
- Mentorship and coaching of 1 or more junior team members
- Contributions to open-source Kubernetes or QA tooling projects are preferred
- Experience implementing chaos engineering in Kubernetes environments is preferred
- CKA, CKAD, or AWS Certified DevOps Engineer certifications are preferred
Benefits:
- Global, collaborative, remote-first culture
- Professional development and training
- Conference and working group attendance
- Customized workstation (macOS, Windows)
- Competitive compensation
- Performance incentives
- Opportunities for advancement
- Opportunity to work with open-source innovation
- Collaborative environment with passionate colleagues
- Continuous growth opportunities
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