Kubernetes Engineer – Defense & Security – Rennes

Role Summary

• The Defense and Security Agency - Command is dedicated to securing critical operations:
• Protection of populations
• Humanitarian aid
• Multinational Operations
• Support for Specialized Units
• Deployment in theater of operations

Our dynamic and united team works towards a common goal: To support the Ministry of the Armed Forces and NATO to respond to its capacity and strategic challenges with cutting-edge technological tools.

At the heart of Excellence and Innovation which make our projects successful, Sopra Steria continues its development and invites you to join its teams within its centers dedicated to Innovation, Experimentation and Defense Simulation. You operate in a multi-technology, multi-business, multi-client context, within dynamic and united teams.

Our Defense and Security Agency - Command is based in Chartres-de-Bretagne.

Your role and missions

Within a dynamic, human-sized team, you will join a close-knit technical team, responsible for designing, deploying, automating and maintaining in production the Kubernetes infrastructures which support the operational applications of the Ministry of the Armed Forces and NATO.

Your main missions are as follows

Deploy, configure and maintain Kubernetes clusters (EKS, AKS, GKE or OpenShift) in sensitive environments: nodes, replicas, autoscaling, networks, persistent storage.

Manage deployments with Helm and Kustomize — version, configure, validate charters for each environment (dev, test, preprod, prod).

Monitor and diagnose systems in production: Prometheus + Grafana, etc.

Optimize performance and costs: resource sizing, reduction of inactive pods, quota management, log analysis.

Integrate DevSecOps practices: integration of scans into CI/CD pipelines, image management (secure Dockerfile, image scanning, private registry).

Document and standardize processes: runbooks, ramp-up playbooks, disaster recovery procedures, cluster architecture.

• Support technical teams: code review, pair programming, training in K8s best practices
• You have the opportunity to get involved in various communities: innovation, technological and societal:
• Innovation Awards - Boosting innovation within the Sopra Steria Group through collective intelligence
• Tech Me Up - Let's develop together a culture of tech excellence recognized by all and at the service of our customers
• Being a reservist - By joining forces with the National Guard, Sopra Steria has become a defense partner company
• Passer'elles - A network created to encourage and promote professional equality between women and men
• Green Light - A network to support the Group's environmental policy
• Great Place To Work - Being a player in well-being at Sopra Steria,…

The advantages of joining us

• A teleworking agreement to telework up to 2 days per week depending on your missions
• An interesting benefits package: mutual insurance, a CSE, restaurant vouchers, a profit-sharing agreement, vacation bonuses and co-optation
• Multiple career opportunities: more than 30 job families, so many pathways to imagine together
• Hundreds of training courses to develop your skills and evolve within the Group
• Independent training platforms to prepare for your certifications and support your personal development
• The opportunity to join the Tech'Me UP collective (training, conferences, monitoring, and much more...)
• Opportunities to participate in technical conferences throughout the year
• A partnership with the Ministry of the Armed Forces to be part of the operational reserve
• Possibilities for transfers in France and internationally

An inclusive and committed employer, our company works every day to fight against all forms of discrimination and promote a respectful working environment. This is why, committed to diversity and diversity, we encourage all applications and all profiles.

https: //www.soprasteria.fr/nous-connaitre/nos-engagements

Requirements

• Graduate of an engineering school or university equivalent, you have at least 5 years of experience in the deployment and operation of Kubernetes.
• You master Kubernetes in an operational context and use tools like Helm and Kustomize to manage deployments.
• You implement observability solutions with tools such as Prometheus and Grafana, and have evolved in sensitive environments requiring strong security, compliance and traceability requirements.
• You practice infrastructure as code with tools like Terraform or Ansible.
• If you recognize yourself in this description then this position is for you!

About the Company

Sopra Steria, a major player in Tech in Europe, with 52,000* employees in nearly 30 countries, is recognized for its consulting, services and digital solutions activities. It helps its clients carry out their digital transformation and obtain concrete and lasting benefits. The Group provides a global response to the competitiveness challenges of large companies and organizations, by combining in-depth knowledge of sectors of activity and technologies with a collaborative approach. Sopra Steria places people at the heart of its action and is committed to its clients to make the most of digital technology to build a positive future. In 2024, the Group achieved a turnover of 5.8 billion euros.

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