Senior Linux & Kubernetes Team Lead (Infrastructure Operations)

1. Leadership & Team Management:

- Lead, mentor, and supervise our internal team of Linux and infrastructure system administrators, fostering high performance and operational excellence.

- Manage on-call rotations, daily task distribution, escalation workflows, and SLA compliance for mission-critical production environments.

2. Cross-Functional Collaboration & DevOps/R&D Integration:

- Collaborate closely with R&D and DevOps teams to ensure seamless integration of development pipelines, container workloads, and automated deployments into production infrastructure.

- Act as the primary technical point of contact to resolve complex, multi-layered technical bottlenecks and environment discrepancies between development, DevOps, and infrastructure teams.

- Spearhead root-cause analysis (RCA) for complex cross-departmental incidents spanning application code, CI/CD pipelines, container orchestration, and server infrastructure.

3. Advanced Linux System Administration:

- Manage and maintain enterprise Linux distributions (Oracle Linux, RHEL, CentOS, Ubuntu) across physical and virtual data centers.

- Oversee core infrastructure services (DNS, NTP, DHCP, NFS, Active Directory integration) and storage subsystems (LVM, filesystems).

- Implement rigorous patching, kernel upgrades, and automation scripts using Bash and Python.

4. Kubernetes & Cloud-Native Operations:

- Design, deploy, scale, and maintain high-availability Kubernetes clusters (using kubeadm, K3s, RKE, or managed services like EKS/AKS).

- Manage containerized workloads, Docker registries, Helm charts, and GitOps workflows (ArgoCD, Flux).

- Configure CNI networking (Calico, Flannel), Ingress controllers (NGINX, Traefik), and persistent storage (NFS, Ceph, CSI drivers).

- Enforce cluster security, RBAC, Network Policies, and OPA/Gatekeeper compliance.

5. Security, Backup, and Compliance:

- Drive system hardening, vulnerability mitigation, and firewall configurations (iptables, firewalld, nftables) in alignment with industry standards.

- Integrate and support security tooling (SELinux, audit logs, EDR, SIEM/Wazuh).

- Oversee enterprise backup, recovery strategies (Bacula, rsync, Veeam), and Disaster Recovery (DR) testing.

6. Monitoring, Performance Tuning:

- Ensure comprehensive observability using Zabbix, Prometheus, Grafana, and ELK/Graylog stack.

- Perform kernel and resource performance tuning (CPU, memory, disk I/O) for high-load environments.

- Drive infrastructure automation using configuration management tools (Ansible, Puppet).

Requirements

• - Experience: 5+ of hands-on experience in Linux System Administration,  focused on Kubernetes and container orchestration in enterprise environments.

  - Leadership Experience: Proven track record in leading infrastructure teams and managing technical stakeholders across different departments.

  - Technical Mastery: Deep expertise in Linux internals, Kubernetes ecosystem, shell scripting, and debugging complex distributed systems.

  - Soft Skills: Exceptional communication and conflict-resolution abilities to bridge gaps between separate technical teams, with a strong proactive problem-solving mindset under pressure.