The Role
Own and evolve a hybrid OpenShift/Kubernetes and Azure platform supporting production workloads. Responsibilities include cluster and cloud infrastructure architecture, infrastructure as code, CI/CD platform management, security, incident troubleshooting, capacity and cost optimization, observability, deployment pattern design, documentation, and mentoring. The role requires extensive hands-on experience with OpenShift or Kubernetes, Azure services, container security, distributed systems, automation, microservices, event-driven architectures, and GitOps.
Summary Generated by Built In
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
- 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
- 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.
Skills Required
- 5+ years of infrastructure or platform engineering experience
- Hands-on production experience running OpenShift or Kubernetes at scale
- Strong knowledge of Azure core services, including APIM, Service Bus, Storage, PostgreSQL, networking, and IAM/Managed Identity
- Experience with Azure DevOps or equivalent for pipeline design and release management
- Proficiency with infrastructure as code, including Terraform, Bicep, Helm, or Kustomize
- Understanding of container networking, ingress controllers, and service mesh concepts
- Experience securing containerized workloads with RBAC, network policies, secrets, and image scanning
- Ability to troubleshoot distributed systems using logs, traces, and metrics
- Scripting ability with Bash, PowerShell, or Python
- Experience with .NET microservice deployment patterns and event-driven architectures
- Red Hat or Azure certifications, such as RHCSA, RHCE, OpenShift Administration, AZ-104, AZ-400, or AZ-700
- Experience with GitOps tooling such as ArgoCD or Flux
- Background supporting integration or API platforms
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The Company
What We Do
DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging & infra, environmental remediation, trenching and marine infrastructure. DEME also engages in concessions activities in offshore wind, marine infrastructure, green hydrogen, and deep-sea mineral harvesting. The company can build on almost 150 years of experience and is 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, the reduction of emissions, polluted rivers and soils and the scarcity of mineral resources. DEME can rely on more than 5,300 highly skilled professionals and operates one of the largest and most technologically advanced fleets in the world. DEME realised a turnover of 3,285 million euro with an EBITDA of 596 million euro in 2023
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