Application Hosting Engineer (OpenShift) H / F

The Application Hosting Engineer (OpenShift Specialist) is responsible for the design, administration and operation of the containerized application hosting platforms based on Red Hat OpenShift .

He / she ensures the availability, performance and security of hosted applications and underlying infrastructure, collaborating closely with middleware, database and DevOps teams.

Key Responsibilities

Administration & Operation

Maintain, operate and optimize Red Hat OpenShift clusters (on-premises).

Manage worker and control nodes, namespaces, projects and resource quotas.

Apply patches, upgrades and security fixes to OpenShift and its components.

Implement monitoring, alerting and capacity management of container platforms.

Integration & Automation

Develop and maintain CI / CD pipelines (Ansible, ArgoCD).

Automate operational processes using Ansible , Python or Shell scripting .

Security & Compliance

Implement and maintain security policies, RBAC and compliance baselines.

Support vulnerability assessments, container image scanning and secrets management.

Contribute to documentation required for audits, DRP (Disaster Recovery Plan)

Collaboration & Support

Act as Level 3 escalation point for hosting-related incidents and changes.

Cooperate with middleware, network and storage teams during troubleshooting.

Participate in on-call rotations for production support (24 / 7 basis).

Continual Service Improvement

Propose enhancements to increase reliability, scalability and automation.

Required Skills and Competencies

Technical Skills

Expertise in Red Hat OpenShift (v4.x) and Kubernetes architecture.

Experience with Linux administration (RHEL or CentOS).

Knowledge of containerization, pod networking, operators and storage classes.

Familiarity with CI / CD pipelines, GitOps and Infrastructure-as-Code (IaC).

Strong understanding of networking, load balancing, certificates (SSL / TLS).

Experience with monitoring & logging tools (Prometheus, Grafana, ELK).

Scripting skills (Bash, Python, or Ansible).

Soft Skills

Analytical mindset and problem-solving ability.

Rigorous documentation and process-oriented work.

Good communication in English (French is an asset).

Teamwork and adaptability in a multi-supplier, multicultural environment.

Commitment to confidentiality, ethics, and service quality.

Education and Certifications

Bachelor’s or Master’s degree in Computer Science, Engineering, or equivalent.

Certifications (considered an advantage) :

Red Hat Certified Specialist in OpenShift Administration (EX280)

Red Hat Certified Engineer (RHCE)

CKA / CKAD (Certified Kubernetes Administrator / Developer)

ITIL 4 Foundation