Senior QA Engineer (contract)

Mirantis, Inc.; Polska; On-site; PLN 150,000 - 210,000; Full time

Benefits offered by this job

Stock options

Benefits package

Job summary

Mirantis, Inc. is seeking an experienced QA Automation Engineer to develop and enhance testing tooling and automation.

You will maintain testing infrastructure, automate results management, and troubleshoot issues with cross-functional teams across geographies. The role emphasizes strong Python testing skills, UNIX/Linux proficiency, and experience with virtualization, networking, REST APIs, and CI tools like Git and Jenkins.

Qualifications

• Proficient in testing methodologies including functional, non-functional, integration, system, HA & failover tests.
• 4+ years of testing experience with Python and development of testing tools.
• Proficient in shell scripting and automation.
• Experience with virtualization software.
• Strong UNIX/Linux knowledge.
• Understanding of networking concepts (OSI model, TCP/IP).
• Experience with Git and CI tools like Jenkins.
• Experience with REST APIs.
• Good English communication (Upper-Intermediate+).
• Motivated and collaborative, fast learner.

Responsibilities

• Develop and improve testing tooling and infrastructure.
• Maintain testing infrastructure and automated tests.
• Automate test results management (storing, archiving, searching, analysis).
• Debug and troubleshoot test results with component teams.
• Improve QA procedures in AI projects.
• Collaborate with distributed international teams on technical challenges.

Skills

Testing methodologies

Python testing

Shell scripting

Virtualization

Unix/Linux

Networking concepts

Git

Jenkins

REST API

English communication

Learning mindset

Adaptability

Tools

Git

Jenkins

Job description

Responsibilities:

• Develop new and improve currently existing testing tooling;
• Develop and maintain testing infrastructure and automated tests;
• Automation of test results management (storing, archiving, searching, analysis);
• Debug and troubleshoot test results and work with component development teams to analyze them;
• Improve the testing procedures in AI project related QA;
• Work with geographically distributed international teams on technical challenges and quality improvements.

Requirements:

• Strong knowledge of testing methodologies and techniques (functional, non-functional, integration, system, HA & failover, etc.);
• 4+ years of experience in testing using Python , developing testing tools;
• Coding abilities using shell scripting;
• Experience with virtualization software;
• Strong knowledge and experience of UNIX or Linux operating environments;
• Knowledge and understanding of networking concepts (OSI model, TCP/IP, etc.);
• Experience with GIT;
• Experience with CIS like Jenkins;
• Experience with REST API;
• Good English communication skills (Upper-Intermediate or higher), both written and verbal;
• Motivated and dedicated to learning and collaboration;
• Ability to work in a fast-paced environment and learn quickly.

Desired:

• Experience with virtualization software;
• Experience with Kubernetes;
• Experience with OpenStack;
• Experience with public cloud providers;
• Experience with release cycles

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.
• Customized workstation (macOS, Windows).
• Professional development and training.
• A competitive compensation package with strong benefits plan and stock options.

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 By submitting your resume, you consent to the processing and storage of your personal data in accordance with applicable data protection laws, for the purposes of considering your application for current and future job opportunities.

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

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.