Senior Infra Systems Expert

Senior Infra Systems Expert

What You Will Do: Key Responsibilities

• CNIS Platform Administration:

  Provide end-to-end administration and operations for

  CNIS platforms

  , encompassing Kubernetes, various container runtimes, and core cloud-native infrastructure components.

• Cloud Container Distribution (CCD) Management:

  Manage and optimize the

  Cloud Container Distribution (CCD)

  lifecycle, including provisioning, upgrades, backup/restore, general lifecycle management, and ensuring disaster recovery readiness.

• Health & Capacity Management:

  Perform regular

  CCD health checks, configuration drift analysis, capacity tracking

  , and environment validation across all clusters.

• Workload Onboarding & Support:

  Collaborate closely with application and platform teams to seamlessly onboard workloads onto the CCD and provide dedicated CCD-level support.

• Monitoring & Performance:

  Monitor system performance and availability using industry-standard tools like

  Prometheus, Grafana

  , and other relevant monitoring solutions.

• Compliance & Governance:

  Ensure strict compliance with all relevant security, governance, and operational policies across the infrastructure.

• DR Planning & Incident Response:

  Actively participate in and lead

  Disaster Recovery (DR) planning and execution

  , as well as conduct thorough Root Cause Analysis (RCA) for major incidents.

• Documentation:

  Maintain detailed

  runbooks, Methods of Procedure (MOPs), and CNIS documentation

  to ensure comprehensive operational readiness.

• SDI Health & Performance:

  Monitor the health and performance of

  Software-Defined Infrastructure (SDI)

  , resolve bottlenecks, and ensure seamless integration with CNIS layers.

• CNIS Troubleshooting:

  Possess strong troubleshooting experience specifically with

  CNIS components

  .

• Linux System Administration:

  Demonstrate expertise in

  Red Hat Enterprise Linux (RHEL) system administration and troubleshooting

  .

• Hardware Management:

  Possess hardware troubleshooting experience on enterprise servers such as

  HP ProLiant and Dell PowerEdge

  .

• System Maintenance:

  Perform essential patch management, firmware upgrades, and OS-level tuning to optimize system performance and security.

• Network Switch Management:

  Possess strong hands-on experience with

  Juniper and Extreme Networks switches

  , covering:
• Switch boot process management.
• Firmware upgrades.
• Backup/restore procedures.
• Border leaf switch management and troubleshooting.

• Network Architecture & Configuration:

  Be familiar with traffic filtering, isolation, and multi-tenant CNIS network architecture, along with proficiency in configuring VLANs, trunking, port profiles (access/trunk), and Access Control Lists (ACLs).

• Storage Administration:

  Possess strong knowledge of

  CEPH Storage administration and troubleshooting

  .

Required Qualifications

• Extensive experience supporting and managing business-critical operations.
• In-depth knowledge and working experience on

  Linux Administration

  .
• In-depth knowledge and working experience on

  Docker, Kubernetes

  , and any other cloud platform.
• Exceptional troubleshooting and debugging skills to efficiently find and resolve issues.
• Understanding of

  SDN (Software-Defined Networking)

  and its integration with container networking layers (e.g., Calico).
• Familiarity with traffic filtering, isolation, and multi-tenant CNIS network architecture.
• Proficiency in switch management, including boot processes, firmware upgrades, backup/restore, Border leaf switch management, and troubleshooting.
• Experience in configuring VLANs, trunking, port profiles (access/trunk), and ACLs.
• Skills in performance analysis, component replacement, switch stacking, and chassis management.

Certifications (Preferred)

• CKA / CKAD / CKS Kubernetes certifications

• Red Hat Certified System Administrator (RHCSA/RHCE)

• Networking certifications (Juniper/Extreme/SDN)

• ITIL Foundation

  (preferred in process-driven environments)