Network Operations Engineer

Infinity Quest
London, UK
6 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Experience level
Expert
Experience required
7 years minimum
Compensation
£45,855.0
Working hours
Regular working hours

Tech stack

Cloud Computing Computer Networks Monitoring of Systems Internet Service Provider Local Area Networks Network Security Log Analysis Network Architecture Network Monitoring Virtual Local Area Networks Wide Area Networks Identity Services Engine
+6 more
Computer Network Operations System Availability Firewalls (Computer Science) Routing & Switching Firewall Services Module Cisco

Job description

We are seeking a Network Operations Engineer (L1/L2) to support and maintain the

organization’s global network infrastructure. The role is responsible for monitoring,

troubleshooting, and operational management of enterprise network and security

platforms, ensuring high availability and performance across WAN, LAN, SD-WAN, Incident Management & Troubleshooting

Troubleshoot and resolve end-user and system issues across:

o PANW Firewalls, PANW SD-WAN, PANW Prisma Access

o Routing & Switching environments

o Wireless and NAC (CISCO ISE)

Perform initial analysis, L2 troubleshooting, and escalate when required

Support global network incidents, outages, and performance degradation

Monitoring & Alert Handling

Monitor network alerts, dashboards, and monitoring tools

Perform triage and take corrective actions based on alerts

Ensure proactive identification of issues and minimize downtime

Vendor & TAC Management

Open and manage TAC cases with OEM vendors (e.g., Palo Alto, Cisco)

Coordinate with ISPs and service providers for circuit issues

Track and follow up until resolution

Network Operations & Administration

Perform routine network operations including:

o URL allowlisting, firewall changes

o Log analysis (traffic, URL filtering, blocked ports)

Maintain monitoring systems and ensure devices are onboarded

Change & Release Management

Submit change requests and participate in CAB discussions

Implement approved changes in production (low/medium risk changes)

Ensure proper documentation and rollback plans

Upgrades & Maintenance

Perform software upgrades and patching for:

o PANW Firewalls

o CSCO Switches

o PANW SD-WAN appliances

Assist in lifecycle management activities

Configuration & Deployment

Configure network and security devices under guidance:

o Firewall rules, SD-WAN policies

o Switch VLANs, routing updates

Requirements

The ideal candidate will have strong troubleshooting skills and hands-on experience with

network and security technologies, along with the ability to manage incidents, changes,

and vendor coordination effectively., 3 7 years of experience in Network Operations / NOC / NetOps

Strong troubleshooting mindset with structured approach

Experience working in enterprise environments with multiple vendors

Familiarity with ITIL processes (Incident, Problem, Change Management)

Basic understanding of network security and access control

Preferred Skills

Experience working in global network environments

Exposure to firewall/SD-WAN/cloud networking platforms

Certifications (optional but beneficial):

o CCNA / CCNP

o Palo Alto PCNSE / PCNSA

Soft Skills

Strong communication skills for incident handling and stakeholder updates

Ability to work in a 24x7 operational environment (if applicable)

Attention to detail and documentation discipline

Apply for this position

This job is hosted externally. Click below to view the full posting and apply.

Apply on www.adzuna.co.uk

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