Senior / Lead QA Engineer – Cloud & Storage

Mirantis; Madrid; Presencial; EUR 60.000 - 80.000; Jornada completa

Descripción de la vacante

A tech leader in cloud infrastructure is seeking a Senior / Lead QA Engineer to drive quality assurance strategies for cloud-native and storage systems. This role involves establishing QA strategies, mentoring junior staff, and collaborating with teams on ensuring production-quality releases. The ideal candidate will have significant experience in Kubernetes, Python, and test automation frameworks. This position offers professional development and a competitive compensation package.

Servicios

Work with passionate colleagues

Professional development and training

Competitive compensation package

Company outings and hackathons

Formación

• 7–10+ years in software testing or quality engineering, with 4+ years in Kubernetes or storage systems.
• Strong skills in Python and shell scripting (Bash); experience with Pytest.
• Excellent English communication and leadership.

Responsabilidades

• Define and drive QA strategies across storage and cloud-native environments.
• Lead risk analysis and manage release readiness assessments.
• Mentor junior QA engineers and work with distributed teams.

Conocimientos

Cloud-native platforms

Storage systems

Kubernetes

Python

Shell scripting

Leadership

Problem-solving

Automation

Herramientas

CI/CD tools (Jenkins, GitHub Actions)

Infrastructure-as-Code practices

REST APIs

Prometheus

Grafana

Jaeger

Descripción del empleo

Overview

We are seeking a highly skilled and motivated Senior / Lead QA Engineer with expertise in both cloud-native platforms and storage systems. This role combines deep technical proficiency with leadership in test strategy, automation, and quality advocacy. You will play a key part in ensuring our solutions meet the highest standards of reliability, scalability, and performance across storage subsystems, distributed systems, and Kubernetes-based environments.

Key Responsibilities

Test Strategy & Quality Leadership

• Define and drive QA strategies across storage, cloud-native, and distributed environments.
• Lead risk analysis, test planning, and release readiness assessments.
• Establish quality gates, release metrics, and data-driven feedback loops to ensure production-grade releases.
• Advocate for a culture of quality and influence design and architecture decisions with testing in mind.

Test Infrastructure & Automation

• Develop, improve, and maintain scalable automated testing frameworks and infrastructure.
• Architect and manage test systems for validating storage, microservices, and hybrid-cloud workloads.
• Integrate automation into CI / CD pipelines (e.g., Jenkins, GitHub Actions), ensuring reliability and maintainability.
• Apply Infrastructure-as-Code practices to create repeatable, extensible, and resilient test environments.

Advanced Testing & Continuous Improvement

• Execute functional, non-functional, integration, system, performance, and failover testing.
• Simulate production-like workloads, failure scenarios, and recovery testing across distributed clusters.
• Integrate chaos, performance, and security testing into the development lifecycle.
• Collaborate with DevOps and engineering teams on monitoring, debugging, and improving resilience.

Mentorship & Collaboration

• Mentor junior QA engineers and developers in advanced testing techniques and automation practices.
• Serve as the QA authority in design reviews, incident retrospectives, and production readiness assessments.
• Work with geographically distributed teams on technical challenges and continuous quality improvements.

Qualifications

Experience : 7–10+ years in software testing or quality engineering, with 4+ years in Kubernetes, storage systems, or distributed cloud-native applications.

Programming & Automation : Strong skills in Python and shell scripting (Bash); experience with Pytest and test automation frameworks.

Technical Proficiency :

• Kubernetes (internals, cluster lifecycle, Helm, service meshes).
• Storage subsystems (SAN, NAS, Object, SDS).
• Linux / UNIX environments (networking, system administration, debugging).
• CI / CD tools (Jenkins, GitHub Actions) and Git.
• REST APIs and observability stacks (Prometheus, Grafana, Jaeger).

Soft Skills : Excellent English communication (written and verbal), leadership in cross-functional teams, strong problem-solving and architectural thinking.

Preferred Extras

• Experience with OpenStack and public cloud providers (AWS, Azure, GCP).
• Contributions to open-source QA or Kubernetes projects.
• Familiarity with chaos engineering and performance benchmarking tools (e.g., K6).
• Relevant certifications (CKA, CKAD, AWS DevOps Engineer).

Benefits

What does Mirantis offer you?

• Work with an established Silicon Valley leader in the cloud infrastructure industry;
• 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;
• Thrive 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;
• Company outings, happy hours, hackathons, and tech talks;
• Receive a competitive compensation package with a strong benefits plan.

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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We are a Leader for Container Management in G2 (#2 after AWS)!