Senior Checkmk DevOps Engineer (m/f/d) @ A1 Competence Delivery Center

Strength. Care. Growth


A1 Competence Delivery Center is a vital component of A1's telecommunications business. Acting as an expertise hub, CDC is dedicated in delivering full range of high-quality IT, network, financial and HR to support A1's operations across all OpCos, independent of location.


Using the power of A1 Group and leveraging bynergies, CDC enables transparency of resources, key skills and knowledge expansion and personal career growth opportunities’, paired with job stability.
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We are expanding the Windows and Virtualizations Team of the A1 Competence Delivery Center. Be part of this exciting journey!

You will know we are the right place for you, if you are driven by:

Opportunities to learn and build your career;
Meaningful work in a stable and fast-paced company;
Diversity of people, projects, and platforms;
A supportive, fun, and inspiring place to work.

Would you like to join us?

As a Senior Checkmk DevOps Engineer, you will work closely with development and operations teams to optimize and maintain multiple Checkmk environments – with the goal of ensuring reliable and efficient monitoring. You will implement automation, enhance monitoring, and leverage both Bash and Python scripting to improve system performance, reliability, and operational efficiency.

Your daily routine would include:

Performing administrative server tasks such as installations, deployments, configurations, upgrades, security patching, and maintenance in PROD and non-PROD environments, as well as the integration and de-integration of monitoring agents;
Analyzing and resolving reported monitoring issues across all supported environments and/or services using our ticketing system (ServiceNow);
Handling tickets and external requests via ServiceNow mail or similar intake channels;
Monitoring system/service health including diagnosis and root cause analysis using Checkmk, log analysis, troubleshooting, and resolving issues within defined SLAs;
Planning and coordinating changes, upgrades, and new services to ensure stable operations;
Developing scripts to automate routine operational tasks (e.g. system checks, Git hooks for various scripts across multiple environments);
Planning and designing new complex monitoring solutions in collaboration with customers and service managers.

You’re a great fit for us if you bring:

At least 3 years of relevant experience with monitoring systems like Checkmk in enterprise environments: maintenance, support, and deployment of Checkmk environments in production and test systems or comparable monitoring tools;
Experience in creating custom Checkmk plugins to improve system monitoring;
Experience as a Linux/Unix system administrator in an enterprise setting;
Experience with Linux/Unix automation technologies and system management tools such as SALT or Ansible, and version control systems like GitHub or Atlassian Bitbucket;
Experience in provisioning, operating, and maintaining Linux servers (virtual and physical), including OS deployment and patch management;
Experience with Bash and/or Python scripting for automation, reporting, and system monitoring improvements;
Ability to identify and fix errors, thoroughly document processes, and continuously improve system operations;;
Experience working in Kanban and Scrum-oriented environments;
Experience in requirement analysis and communication with internal and external customers, including writing user stories and creating Jira tasks based on their input;
A university degree in IT, telecommunications, or a related field, or at least 3 years of equivalent professional experience;
Fluent English skills, both written and spoken.

Nice-to-haves:

Experience with container technologies such as Docker, OpenShift, or Kubernetes; Experience in web development using Python, Django, or similar;
Experience in handling SSL certificates;
Familiarity with cloud environments like Microsoft Azure, Amazon Web Services (AWS), or Exoscale;
Agile working with an operational backlog in a technological environment;
Experience with on-call duty (OCD);
Not required, but a big plus: ability to communicate in German.

Our gratitude for the job done will be eternal, but we’ll also offer you:

Innovative technologies and platforms to “play” with;
Modern working environment for your comfort;
Friendly, ambitious, and motivated teammates to support each other;
Thousands of online and in-person learning opportunities to grow;
Challenging assignments and career development opportunities in multinational environment;
Attractive remuneration package;
Flexible working schedule and opportunity for home office;
Numerous additional goodies, including, but not limited to free A1 services, discounts, health insurance and services, sports center, childcare, team and family events, etc.


Not sure yet? See us in action in our A1 Blog.