Cloud Engineer - Site Reliability Engineer (SRE)(M/F)

Cloud Temple, a leader in digital sovereignty, supports businesses and public sector organisations in the transformation, hosting and outsourcing of their critical applications.

Cloud Temple is offering you the opportunity to join its teams as a Cloud Engineer - Site Reliability Engineer (SRE). You will be responsible for ensuring the reliability, resilience and performance of our private cloud platforms. You will play a central role in the design, optimisation and automation of our critical infrastructures.

Your tasks: 

As a Cloud Engineer SRE, you will be responsible for the following tasks:

• Design, deploy and maintain private cloud infrastructures based on open source technologies (OpenStack, Kubernetes, Ceph), in compliance with security standards (SecNumCloud, RGPD, HDS).
• Automate deployments and operations using Infrastructure as Code tools (Terraform, Ansible) and CI/CD pipelines.
• Implement full observability of environments using supervision tools (Prometheus, Grafana, ELK, Loki, etc.).
• Manage incidents in real time, carry out root cause analyses, document post-mortems and implement sustainable corrective measures.
• Contributing to continuous improvement: improving reliability, performance, documentation, sharing best practice and strengthening the SRE culture.
• Working cross-functionally with the Dev, Infrastructure, Security and Product teams to integrate reliability into system design.
• Participate in the on-call rotation to guarantee the availability of critical services 24/7

At Cloud Temple, we believe in boldness and initiative. Beyond these missions, we expect you to be proactive and to participate in the continuous improvement of your scope.

Diploma level Bac+5 - Engineering school or university equivalent.

Expected experience Between 4 and 6 years' experience in a similar role.

• Automate sovereign cloud environments from start to finish (deployment, configuration, scaling).
• Diagnose and quickly resolve complex technical incidents (infrastructure, network, applications).
• Implement high-quality observability, guaranteeing the traceability and relevance of alerts.
• Participate in constructive post-mortems and formalise lessons learned to strengthen overall robustness.
• Actively contribute to technical documentation, playbooks and knowledge transfer.
• Optimise resources and operating costs with a FinOps approach adapted to the cloud.

Technical skills :

• Expertise in private cloud environments: OpenStack, on-premise Kubernetes, Ceph, etc.
  Good knowledge of **virtualisation principles** and associated solutions, in particular **Proxmox** and **VMware ESXi/vSphere**.
• Solid experience in Infrastructure as Code: Terraform, Ansible.
• Expertise in containerisation and orchestration: Docker, Kubernetes in production.
• Setting up and managing CI/CD pipelines (GitLab, Jenkins, GitHub Actions, etc.).
• Mastery of supervision and observability tools: Prometheus, Grafana, ELK stack, Datadog, etc.
• Good scripting skills: Python, Go, Bash.
• Understanding security issues: IAM, encryption, system hardening, RGPD compliance, HDS, SecNumCloud.

Language skills :

• English: Advanced
• French : Advanced

Expected skills : 

• Analytical mindset & rigour: ability to structure diagnoses and resolve problems in the long term.
• Resilience and stress management: operational effectiveness in critical situations.
• Clear communication & popularisation: passing on information to the right levels (technical, business, management).
• Autonomy and initiative: anticipating, proposing, experimenting and implementing solutions.
• Collaborative working: strong ability to cooperate with multidisciplinary teams.
• Curiosity & continuous learning: willingness to evolve with the tools, regulations and uses of the sovereign cloud

Why join us?

A visionary player in the sovereign cloud, with high-impact projects at home and abroad.
An agile, flat organisation that encourages autonomy, initiative and internal mobility.
Certifying courses
A balanced hybrid way of working to reconcile performance and quality of life.
A concrete CSR commitment (diversity, sustainable mobility, right to disconnect, etc.).
And solid benefits: health insurance, luncheon card, RTT, bonuses, profit-sharing, transport reimbursement, etc.
Cloud Temple is proud to promote diversity and inclusion. This position is open to all, including disabled workers, with equal qualifications.