Aldermaston Reading 581 Contract
Job Reference: SNE-MR
We are seeking an experienced Senior Network Engineer to support and operate a large, complex, and highly secure network environment. The role is hands-on and operational, requiring strong troubleshooting skills, deep Juniper expertise, and experience working within structured IT service environments.
You will be part of a senior engineering team responsible for maintaining network availability, security, and performance, with participation in an on-call rota and occasional out-of-hours work when required.
Key Responsibilities
Support and maintain a large-scale enterprise network environment
Diagnose and resolve complex network incidents and problems
Configure, manage, and troubleshoot Juniper network and security platforms
Support WAN/LAN infrastructure, routing, Firewalling, and high-availability designs
Work within ITIL-based service management processes
Document network configurations, processes, and changes clearly
Engage with technical and non-technical stakeholders effectively
Participate in on-call support and occasional travel to remote sites
Essential Skills & Experience
Senior-level experience supporting large and complex network environments
Strong networking fundamentals and troubleshooting capability
Juniper Technologies:
EX, QFX switching
SRX/vSRX Firewalls and policy configuration
Junos Space, Security Director, Apstra
Virtual Chassis and clustering
EVPN/VXLAN
Routing & Networking:
OSPF, BGP
GRE tunnels
VRFs/routing instances
WAN/LAN design, high availability
Security & Platforms:
FortiGate
F5 BIG-IP (Load Balancing/WAF)
Pulse Secure/Ivanti
High-grade encryption
Identity & Access Management:
Cisco ISE (full life cycle)
Windows NPS (RADIUS/802.1X)
Monitoring & Core Services:
SolarWinds, Splunk
IPAM, DHCP, DNS
Experience working within ITIL service management environments
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