Infrastructure Expert – OpenShift & Azure

Infrastructure Expert – OpenShift & Azure

You will help keep our OpenShift container platform healthy, secure and up to date, and act as a technical point of contact for the application teams that rely on it. This is a hands-on engineering role for someone with a solid Linux background and a few years of real-world Kubernetes experience who wants to work on a platform at genuine scale, with all the complexity that mixed cloud, on-prem and edge environments bring.

Your responsibilities

• Operate, patch and upgrade OpenShift clusters and their underlying Linux hosts across cloud, on-premises and remote environments
• Monitor platform health, respond to incidents and alerts during working hours, and drive root-cause analysis and follow-up
• Work with development teams to understand their applications and design how they run on OpenShift
• Author, review and maintain Helm charts for applications, following and contributing to the team's shared chart standards and library charts
• Maintain and extend platform components delivered through GitOps, and contribute improvements back to shared configuration and charts
• Manage platform-level concerns such as certificates, secrets, image registries, ingress and observability
• Automate recurring operational tasks with scripting and infrastructure-as-code
• Write and maintain clear runbooks, documentation and knowledge-base articles
• Participate in change management: prepare, document and execute changes according to ITIL-style processes
• Collaborate daily with colleagues in Belgium and other locations, working across time zones

Your profile

• Hands-on experience operating Kubernetes in production; OpenShift experience is a strong plus
• 2-5 years of professional experience in Linux system administration or engineering (RHEL/CentOS-family preferred)
• Good understanding of containers, networking (DNS, TLS, load balancing, ingress), storage and Linux security fundamentals
• Strong, practical knowledge of Kubernetes resources and how they fit together, and proven experience designing and writing Helm charts, not just deploying existing ones
• Solid understanding of DevOps principles and practices: infrastructure and configuration as code, version-controlled change, CI/CD, automated testing, immutable deployments, and a "you build it, you run it" approach to reliability
• Experience with GitOps (Argo CD)
• Familiarity with observability tooling (Prometheus, Grafana, Alertmanager, centralized logging)
• Exposure to any of the following is a plus: Ansible, cloud platforms (Azure), certificate management, secrets management, VMware/vSphere
• Certifications (RHCSA, CKA, etc.) are welcome but not required. We care about what you can do, not what you hold.
• Fluent professional English, spoken and written. This is essential, as you will work daily with an international team and produce written documentation and change records
• Clear communicator who can explain technical issues to both engineers and non-technical stakeholders
• Structured and methodical troubleshooter who documents what they find and follows through
• Ownership mindset: you take responsibility for the platform's health rather than waiting to be assigned tasks
• Comfortable working in a distributed team and asking for help or clarification early
• Service-oriented attitude towards application teams: patient, responsive and constructive
• Curious and willing to learn: the platform, the tooling and the business all keep evolving

Our offer

• An extensive mobility program for a healthy work-life balance.
• A permanent training track which allows you to develop yourself personally and professionally.
• A stimulating, innovative workplace with numerous growth opportunities.
• A people-oriented environment with an interactive health program and a focus on employee wellbeing.

About Us

DEME is a world leader in the highly specialised fields of dredging, solutions for the offshore energy industry, infra marine and environmental works. The company can build on more than 140 years of know-how and experience and has fostered a pioneering approach throughout its history, enabling it to be a front runner in innovation and new technologies.

DEME’s vision is to work towards a sustainable future by offering solutions for global challenges: a rising sea level, a growing population, reduction of CO2 emissions, polluted rivers and soils and the scarcity of natural resources.

While the company’s roots are in Belgium, DEME has built a strong presence in all of the world’s seas and continents, operating in more than 90 countries worldwide. DEME can rely on 5,200 highly skilled professionals across the globe. With a versatile and modern fleet of over 100 vessels, backed by a broad range of auxiliary equipment, the company can provide solutions for even the most complex projects.

DEME achieved a turnover of 2.62 billion euros in 2019.

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