IT Network Operations Support Engineer x2/Cisco ACI/London

WNTD Ltd

London, UK

27 days ago

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Role details

Contract type

Temporary contract

Employment type

Full-time (> 32 hours)

Experience level

Expert

Experience required

8 years minimum

Compensation

£130,000.0 - £156,000.0

Working hours

Shift work

Job source

www.indeed.com

Tech stack

Amazon Web Services Microsoft Azure Border Gateway Protocol Cloud Computing Configuration Management Data Centers Enhanced Interior Gateway Routing Protocol Virtual Private Networks (VPN) Multi-protocol Systems Python (Programming Language) Log Analysis Network Diagrams

+13 more

Network Monitoring Routing Network Service Cisco Nexus Switches Open Shortest Path First (OSPF) Ansible Zero Trust Network Access Wide Area Networks Computer Network Operations Firewalls (Computer Science) Information Technology Fortinet Api Design

Job description

You’ll bring deep L2-L7 troubleshooting skills, hands-on Cisco ACI experience, and strong exposure to Palo Alto and Fortinet Firewall platforms, working closely with engineering, security and business stakeholders to keep critical network services stable, secure and performing., * Provide operational support for enterprise and data centre networks, ensuring high service availability

Troubleshoot and resolve complex L2-L7 issues across routing, switching, Firewalls (Palo Alto, Fortinet) and Cisco ACI environments
Lead incident response, root cause analysis and permanent remediation
Monitor network health, capacity and performance via operational tooling, telemetry and alerting
Identify and resolve performance bottlenecks, routing issues and Firewall policy inconsistencies
Support capacity planning and resilience/optimisation activity across WAN, LAN and data centre fabrics
Implement network and Firewall changes per defined change control, risk assessment and rollback processes
Support deployment, maintenance and policy governance of Palo Alto (Pan-OS) and Fortinet (FortiOS) platforms
Support Cisco ACI fabric deployment, segmentation policies and APIC operations
Maintain network baselines, configuration standards and SOPs
Collaborate with architecture, engineering and cybersecurity teams on new designs, migrations and rollouts
Liaise with telcos, service providers and network vendors on fault resolution, escalations and SLA tracking
Maintain network diagrams, SOPs, incident reports and runbooks, and ensure compliance with regulatory/audit standards

Requirements

8-12+ years supporting large-scale enterprise/data centre networks with increasing operational responsibility
Strong L2-L7 troubleshooting, including BGP, OSPF, EIGRP, QoS and WAN routing behaviours
Hands-on Cisco ACI operational experience (tenants, policies, APIC administration, fault analysis)
Hands-on operational experience with Palo Alto Firewalls (security policies, NAT, App-ID, User-ID, Panorama) and Fortinet FortiGate (policy configuration, VPNs, SD-WAN, FortiManager/FortiAnalyzer)
Practical automation experience using Python (log parsing, API-driven configuration validation, health checks, workflow automation) and familiarity with Ansible
Experience with MPLS, SD-WAN, hybrid WAN, ExpressRoute/Direct Connect and Firewall-based connectivity
Familiarity with security practices: segmentation, Zero Trust, access control, encryption and audit compliance
Knowledge of cloud networking constructs in AWS/Azure and hybrid environment support
Experience working in regulated industries (financial services or similar), with strong familiarity with compliance, audit evidence and change governance
Strong communication, documentation and cross-team stakeholder management skills