Atos is looking for a highly skilled and hands-on Senior Devops with lead experience to design, development, and operation of a mission-critical enterprise platform supporting the air traffic management (ATM) digital ecosystem. This is a unique opportunity to shape the future of aviation technology by building and operating a secure, resilient, and scalable platform. This role requires regular travel to the client site (minimum twice per month). Key Responsibilities Architect, implement, and evolve a container-based platform on OpenShift and Azure IaaS. Develop and maintain custom Kubernetes operators for automating lifecycle management of critical services (databases, observability stacks, messaging, APIs). Design and implement secure multi-tenant architectures using HashiCorp Vault, Keycloak, and Okta for identity, secrets, and policy enforcement. Lead the development of CI/CD automation pipelines with Jenkins. Integrate data services (PostgreSQL, MongoDB, Elasticsearch, MinIO) into the platform ecosystem. Oversee high availability and disaster recovery strategies across distributed Azure and OpenShift environments. Implement observability frameworks (ELK, Prometheus, Grafana) to ensure proactive monitoring and compliance. Champion Site Reliability Engineering (SRE) practices and drive continuous improvement. Drive Infrastructure as Code (IaC) and Configuration as Code (CaC) adoption using Terraform and Ansible. Integrate and manage secure communication layers, including NGINX reverse proxies, API gateways, and TLS certificate management. Manage event-driven integration patterns using Solace PubSub+ and Confluent Kafka. Collaborate with cybersecurity and compliance teams to implement zero-trust networking and policy-as-code controls. Act as a technical authority and mentor for platform engineers and developers. Provide architectural reviews and governance for platform components and integrations. Liaise with internal stakeholders, partner organizations, and external technology providers.  Required Skills & Experience 10+ years of professional experience in software/platform engineering, including 3+ years in a Lead or Lead Developer role, demonstrating the ability to lead cross-functional teams, set architectural direction, and communicate effectively within a multi-national, safety-critical environment. Proven experience with OpenShift/Kubernetes (operator SDKs, Helm, ArgoCD, cluster management, GO programming language). Deep understanding of Azure IaaS, virtual networking, and hybrid cloud architectures. Expert in CI/CD automation (Jenkins, GitOps, or ArgoCD). Advanced proficiency in Vault, Keycloak, and Okta for security and identity federation. Strong experience with (PostgreSQL, MongoDB, Elasticsearch) and object storage (MinIO). Experience with event streaming platforms (Solace, Confluent Kafka). Knowledge of NGINX and API Gateway technologies. Solid background in Terraform, Ansible, and containerized application delivery. Understanding of observability stacks (ELK, Prometheus, Grafana) and log/metric correlation. Deep understanding of cybersecurity, compliance, and operational resilience in regulated domains. Knowledge of aviation or air traffic management (ATM) systems is a strong plus.  Preferred Qualifications Certified Kubernetes Administrator (CKA) or Application Developer (CKAD). HashiCorp Certified: Vault Associate. Azure Solutions Architect Expert or Azure DevOps Engineer certification. Experience with service meshes (Istio, Linkerd) and OpenTelemetry for advanced observability.   What’s in it for you?  Wellbeing programs & work-life balance - integration and passion-sharing events Private medical and dental care Benefits platform – shopping, cinema, sport etc. Co-funding of sports activities, e.g. Multisport & OK system cards, b-active program Courses and certifications e.g. Google Cloud, AWS, ITIL Conferences and Expert Communities Gift packages for special occasions: Easter, Christmas, Children’s Day Appreciation for seniority: additional days off, Atos Jubilee gifts Charity and eco initiatives  What happens next? Quick conversation with HR Interview with a Manager/IT expert/project representative