Senior System Administration Engineer

Purpose of the job

Lead design and administration of secure, scalable Linux/UNIX-based systems across public/private cloud and telco environments. Support automation, virtualization, storage, and infrastructure resilience while collaborating across IT and engineering domains.

Duties and responsibilities

• Design, implement, and manage hybrid infrastructure across public, private, and Telco clouds
• Administer Linux/UNIX systems with a focus on performance, security, and automation
• Deploy and manage virtualization platforms (VMware, OpenStack) and SDN/SDS solutions
• Implement Infrastructure as Code (Terraform, Ansible) for consistent configuration management
• Manage multi-cloud environments (AWS, Azure, GCP) with a focus on cost optimization and resilience
• Support container orchestration and telecom applications using Kubernetes and OpenShift (5G, MEC)
• Build and maintain CI/CD pipelines and serverless deployments
• Enforce security architecture (Zero Trust, RBAC) and ensure compliance standards are met
• Configure and troubleshoot networking, identity, and storage architecture
• Maintain high availability, disaster recovery, and business continuity solutions
• Deploy and monitor observability tools (Prometheus, Grafana, EFK Stack)
• Collaborate on OSS/BSS integration and Telco orchestration (ONAP, ETSI MANO)
• Document processes and provide mentorship on emerging infrastructure technologies

Job specification

Education
Bachelors in communication engineering, Computer Science, or related field

Experience
6+ years in system administration, including multi-cloud and telecom infrastructure

Must-Have Skills

• Cloud architecture (Public, Private, Telco: AWS, Azure, GCP)
• Infrastructure as Code (Terraform, Ansible)
• CI/CD, serverless, security & compliance (Zero Trust)
• Kubernetes, NFV/CNF/VNF, and Telco orchestration (ONAP, ETSI MANO)
• SDN, storage solutions, OpenStack, VMware
• Disaster recovery, observability, and OSS/BSS integration

Good-to-Have Skills

Red Hat Linux

• RHEL admin, package & file system management, firewall, networking, automation
• Troubleshooting, Red Hat Satellite, Ansible for sysadmin tasks

OpenShift

• Cluster and storage management, CI/CD (Tekton, Jenkins), RBAC, logging (EFK), monitoring (Prometheus, Grafana), Operators, ACM/ACS

VMware

• vSphere, ESXi, vCenter, HA/DRS, distributed networking, storage, lifecycle management, and performance tuning