Senior Infrastructure Engineer

Join d-Matrix as a Senior Infrastructure Engineer, where you will be responsible for managing and troubleshooting our Kubernetes clusters, CI/CD systems, and compute environments. You will own issues end-to-end, diagnose and fix them, and engage with IT or the product software group when necessary. This role requires a strong understanding of networking fundamentals, production Linux systems, and scripting experience in Python and/or Bash. On-call participation is expected, and you will have the opportunity to contribute to design and build work across the team's systems.

• Assurer la première réponse et la résolution des problèmes liés aux clusters Kubernetes, aux systèmes CI/CD, aux machines virtuelles et aux environnements de démonstration.
• Transformer les problèmes récurrents en automatisation, en alertes et en runbooks pour réduire la fréquence des incidents.
• Participer à la couverture d'appel pour l'environnement et contribuer à la conception et à la construction des systèmes de l'équipe.

• Drive and curiosity to learn unfamiliar systems and how state-of-the-art inference systems are built
• Working knowledge of networking fundamentals, including DNS, routing, load balancing, and TLS
• Clear communication under pressure, including concise incident status updates
• 2+ years operating production Linux systems, including hands-on Kubernetes troubleshooting
• Methodical debugging skills: forming hypotheses, narrowing them quickly, and working across layers when the obvious answer is wrong
• Scripting experience in Python and/or Bash
• Experience with monitoring and observability tools
• Familiarity with CI/CD systems (GitLab preferred)
• Experience with GPU or accelerator nodes in Kubernetes
• Experience with infrastructure-as-code tools such as Ansible or Terraform
• Experience with monitoring platforms such as DataDog, Prometheus, or Grafana
• Bare metal or on-prem infrastructure experience
• CKA or CKAD certification