L3 Linux/Kubernetes Support Specialist

Stack

Responsibilities

• ▹Manage, troubleshoot and optimise containerised applications and infrastructure on Kubernetes, Red Hat OpenShift and OpenStack platforms
• ▹Serve as the subject matter expert for core cloud infrastructure technologies: advanced Linux (CentOS) administration, Docker/containers and complex networking configurations
• ▹Lead the investigation and resolution of complex, high-severity customer issues across the entire cloud stack
• ▹Quickly identify root causes and implement durable solutions for customer incidents
• ▹Prepare and conduct rigorous Root Cause Analysis (RCA) for critical incidents
• ▹Develop, test and maintain automation scripts using Python and Ansible to streamline daily operational tasks
• ▹Identify and implement automation opportunities to reduce manual effort in maintenance and deployment
• ▹Provide end-to-end Escalation, Monitoring and Emergency (EME) support as the final escalation point to meet SLAs
• ▹Liaise directly with the customer team and internal teams to deliver tailored technical solutions
• ▹Stay current with best practices and emerging technologies in cloud and containerization

Requirements

• ▹Strong, proven hands-on experience with Linux administration
• ▹Strong knowledge of core networking principles (TCP/IP, routing, load balancing, firewalls) in a cloud environment
• ▹Strong knowledge of Kubernetes orchestration, OpenStack platforms and Docker/containerization
• ▹Sharp troubleshooting skills and an analytical mindset
• ▹Solid Python scripting skills for task automation and system management
• ▹Hands-on experience with Ansible for configuration management
• ▹Expertise in preparing and implementing RCAs
• ▹Proven experience with EME (Escalation, Monitoring, Emergency) management processes
• ▹Mandatory rotational on-call, which may occasionally require shifts outside typical business hours
• ▹Work in live environments in strict compliance with the Standard Network Touch Policy

Nice to have

• ▹One or more certifications: Red Hat Certified Specialist in Cloud Infrastructure (EX210), Red Hat Certified Engineer (RHCE) in Red Hat OpenStack (EX310), RHCSA, RHCE, CKA, EX280 (OpenShift Administration), EX380 (OpenShift Automation and API Management)

Soft skills