Senior Automation Software Tester, MSR team (remote)

Mirantis; Mountain View (CA); Hybrid; USD 150,000 - 190,000; Full time

Benefits offered by this job

Remote-first culture

Professional development

Open-source collaboration

Competitive compensation

Job summary

Mirantis seeks a Senior Automation Software Tester to join the MSR4 product team in a remote-capable role. You will define QA strategy, drive automated testing across Kubernetes and cloud-native systems, and lead test planning for multi-cluster, multi-cloud deployments.

The ideal candidate has 10+ years in software testing, strong leadership, expertise in Kubernetes internals, scripting with Python, and experience building scalable CI/CD tests.

Qualifications

• 10+ years in software testing or quality engineering roles.
• 4+ years focused on Kubernetes, cloud-native apps, and distributed systems.

Responsibilities

• Define QA strategy for Mirantis Secure Registry, Kubernetes, and cloud-native environments.
• Evaluate and champion best-in-class testing practices for distributed systems.
• Lead risk analysis and test planning for large-scale, multi-cloud registry and infrastructure.

Skills

Leadership

Test automation

Scripting

Cloud-native / Kubernetes

Education

Bachelor's or Master’s in CS or related

Tools

Kubernetes

Python

Pytest

Jenkins

GitHub Actions

Helm

Istio/Linkerd

Prometheus

Grafana

K6

Job description

Senior Automation Software Tester, MSR team (remote)

• Full-time

About Mirantis

Mirantis is the Kubernetes-native AI infrastructure company, enabling organizations to build and operate scalable, secure, and sovereign infrastructure for modern AI, machine learning, and data-intensive applications. By combining open source innovation with deep expertise in Kubernetes orchestration, Mirantis empowers platform engineering teams to deliver composable, production-ready developer platforms across any environment—on-premises, in the cloud, at the edge, or in sovereign data centers. As enterprises navigate the growing complexity of AI-driven workloads, Mirantis delivers the automation, GPU orchestration, and policy-driven control needed to manage infrastructure with confidence and agility. Committed to open standards and freedom from lock-in, Mirantis ensures that customers retain full control of their infrastructure strategy.

We are looking for an experienced Senior Automation Software Tester to MSR4 product team.
Mirantis Secure Registry (MSR) 4 is an Enterprise-grade container registry solution that can be integrated easily with standard Kubernetes distributions to provide tight security controls for cloud native development. Based on Harbor, which is open source and the only CNCF graduated container registry, this Mirantis product can serve as the core of an effective secure software supply chain.

Key Responsibilities

Contribute to driving the overall QA strategy for Mirantis Secure Registry, Kubernetes and cloud-native environments, aligning quality goals with business objectives and release deadlines.

Evaluate and champion best-in-class testing practices and frameworks for distributed systems.

Lead risk analysis and test planning for large-scale, multi-cloud registry, infrastructure and container orchestration.

Architecting Test Systems

Architect test frameworks and infrastructure for validating microservices and infrastructure components in multi-cluster and hybrid-cloud environments.

Oversee the design of complex test scenarios simulating production-like workloads, resource scaling, failure injection, and recovery across distributed clusters.

Automation & Scalability

Spearhead the development of scalable and maintainable test automation integrated with CI/CD (Jenkins, GitHub Actions, etc.).

Leverage Kubernetes APIs, Helm, and service mesh tools to build comprehensive automation coverage, including system health, failover behavior, and network resilience.

Promote test infrastructure-as-code and drive IaC forward on the team making sure the infrastructure code is repeatable, extensible and reliable.

Mentorship & Technical Influence

Mentor QA engineers and developers in advanced testing techniques such as: risk-based testing, chaos engineering, performance and load testing etc.

Serve as the QA authority in design reviews, production readiness assessments, and incident retrospectives (escaped defects).

Collaborate with devops engineers to refine monitoring, alerting, and debugging strategies for testing automation being run in CI/CD.

Quality Advocacy & Continuous Improvement

Establish quality gates, release readiness metrics, and data driven feedback loops to ensure released software is production quality.

Drive initiatives to integrate performance, security, and chaos testing into the development lifecycle.

Advocate for a culture of quality across teams and influence architecture decisions with testing in mind.

Education

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.

Experience

• 10+ years in software testing or quality engineering roles, with 4+ years focused on Kubernetes, cloud-native applications, and distributed systems.
• Proven leadership experience in building and scaling test strategies in enterprise-grade environments.
  

Technical Proficiency

• Deep understanding of Kubernetes internals, cluster lifecycle management, Helm, service meshes (e.g., Istio or Linkerd), and network policies.
• Strong scripting and automation capabilities (Python, Pytest, Bash, etc.).
• Familiarity with observability stacks (Prometheus, Grafana, Jaeger), Kubernetes security (RBAC, secrets management), and performance benchmarking tools (e.g., K6).
• Solid grounding in cloud architecture (AWS, Azure, GCP), infrastructure provisioning, andcontainerized CI/CD.
• Moderate to advanced linux knowledge and proficiency is required: Bash scripting and debugging, systemd/logs, networking/firewalling/routing, certificate/PKI management, containers (Docker/containerd), and Kubernetes tooling (kubectl/Helm with OCI registries, GitOps/Flux) to install, test, and troubleshoot multi-cluster environments.
• Exceptional problem-solving and architectural thinking.
• Experience influencing cross-functional teams and senior leadership.
• Excellent verbal and written communication skills for technical and executive-level audiences.
• Mentorship and coaching of 1 or more junior members on the team especially around testing fundamentals, troubleshooting and automation.

Preferred Extras

• Contributions to open-source Kubernetes or QA tooling projects.
• Certifications such as CKA, CKAD, or AWS Certified DevOps Engineer.

What does Mirantis offer you?

• Work in a global, collaborative, remote-first culture that rewards initiative and execution.
• Play a pivotal role in shaping the next era of cloud and AI modernisation.
• Manage high-impact enterprise accounts with immediate opportunity for growth.
• Work with exceptionally passionate, talented and engaging colleagues, helping Fortune 500 and Global 2000 customers implement next-generation cloud technologies.
• Be a part of cutting-edge, open-source innovation.
• Thriving in the high-energy environment of a young company where openness, collaboration, risk-taking, and continuous growth are valued.
• Professional development and training.
• Attend conferences and working groups.
• Customized workstation (macOS, Windows).
• Competitive compensation, performance incentives, and opportunities for advancement.

It is understood that Mirantis, Inc. may use automated decision-making technology (ADMT) for specific employment-related decisions. Opting out of ADMT use is requested for decisions about evaluation and review connected with the specific employment decision for the position applied for. You also have the right to appeal any decisions made by ADMT by sending your request to [e-mail]

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