Senior Telco SysOps Engineer

Introduction

The Senior Telco SysOps Engineer is responsible for the engineering, operation, maintenance and troubleshooting of production infrastructure supporting telecommunications services. The position is a hands-on infrastructure engineering role spanning Linux, compute, virtualisation, Kubernetes, storage, networking, monitoring and automation.

Duties & Responsibilities

Infrastructure Operations

• Operate production infrastructure supporting telecommunications applications.

• Maintain highly available compute, network and storage platforms.

• Monitor infrastructure health and capacity.

• Troubleshoot hardware, OS, network and application-platform issues.

• Perform infrastructure upgrades and maintenance.

• Conduct pre- and post-change validation.

• Maintain infrastructure configuration and documentation.

Linux

• Administer production Linux servers.

• Troubleshoot CPU, memory, filesystem, disk and network problems.

• Manage services and processes.

• Analyse system and application logs.

• Perform patching and OS maintenance.

• Manage users, permissions, certificates and system configuration.

• Troubleshoot DNS, NTP and other infrastructure services.

Kubernetes & Containers

• Operate Kubernetes clusters.

• Deploy and troubleshoot containerised applications.

• Troubleshoot pods, nodes, services, storage and networking.

• Monitor cluster capacity and performance.

• Support CNF and OSS application teams at infrastructure level.

Networking

• Troubleshoot server and application connectivity.

• Work with VLANs, routing, VRFs and firewalls.

• Understand BGP and dynamic routing fundamentals.

• Troubleshoot DNS and load-balancing problems.

• Diagnose MTU, latency, packet-loss and connectivity problems.

• Capture and analyse traffic using tcpdump/Wireshark.

• Troubleshoot virtual and host networking.

OSS Platform Support

Provide infrastructure support for telecommunications OSS platforms including:

• NMS/EMS

• Fault management

• Performance management

• Configuration management

• Inventory

• Monitoring

• Logging

• Telemetry and analytics platforms

Work with application and vendor teams to distinguish application faults from infrastructure faults .

Monitoring & Observability

• Maintain infrastructure monitoring.

• Develop and maintain dashboards.

• Investigate alarms.

• Maintain centralised logging.

• Improve monitoring coverage.

• Identify performance trends before they cause outages.

• Assist in defining meaningful operational thresholds.

Automation

• Develop operational scripts using Python and Bash.

• Interact with systems using REST APIs.

• Maintain scripts and configurations in Git.

• Automate recurring operational activities.

• Develop automated infrastructure validation and health checks.

Incident & Problem Management

• Respond to production incidents.

• Independently diagnose complex infrastructure problems.

• Participate in engineering escalation/on-call.

• Produce technical incident reports.

• Perform RCA.

• Work with equipment/software vendors on defects.

• Implement corrective and preventative actions.

Desired Experience & Qualification

Minimum Experience

• 5–8+ years in systems, infrastructure, ISP or telecommunications engineering.

• Strong production Linux experience.

• Strong IP networking fundamentals.

• Experience with virtualisation and/or container platforms.

• Experience operating highly available production systems.

• Practical scripting or automation experience.

Core Technical Skills

Strong capability in

• Linux

• TCP/IP

• DNS/NTP

• VLANs

• Routing

• Firewalls

• Virtualisation

• Storage

• Bash

• Git

• Wireshark/tcpdump

Working knowledge of

• Docker/containerd

• OpenShift

• Python

• REST APIs

• Monitoring and logging platforms

• High-availability architectures

Advantageous

• Telecommunications/ISP environment experience

• OSS/NMS platform experience

• Telco Cloud/CNF infrastructure

• Red Hat certification

• CKA

• CCNP/JNCIP

• VMware/OpenStack

• Ceph

• Prometheus/Grafana

• ELK/OpenSearch

• CI/CD

• Database administration/troubleshooting