Senior Network Engineer - Security-cleared

  • Parker Shaw
  • Aldermaston, Berkshire
  • Feb 09, 2026
Contractor Telecommunications

Job Description

We are currently recruiting for an experienced Senior Network Engineer to work a 12-month contract for our client 100% on-site in Aldermaston, Reading.

Essential:

  • Experience of support in a large and complex network environment at a Senior network engineering level
  • Good technical investigation and problem-solving skills.
  • Juniper Technologies: EX, QFX, switch configuration, SRX, vSRX Firewall and policy config, Junos Space, Security Director, Apstra.
  • Experience in IT service management and delivery based on ITIL service management standards.
  • Experience working with Juniper Virtual Chassis and Clustering technology
  • Experience with configuring/troubleshooting EVPN/VXLAN on Juniper equipment.
  • Experience of configuring GRE tunnels and Routing Instances/VRFs.
  • Experience of PKI/certificate generation and renewal.
  • Networking: strong routing skills (OSPF, BGP), Firewall configuration, WAN/LAN design, device clustering, high availability.
  • Juniper Technologies: EX, QFX, switch configuration, SRX, vSRX Firewall and policy config, Junos Space, Security Director, Apstra.
  • Security Platforms: FortiGate, F5 BIG-IP (Load Balancing/AWAF), Pulse Secure/Ivanti, high-grade encryption.
  • Identity & Access Management: Cisco ISE (full life cycle), Windows NPS (RADIUS/802.1X).
  • Monitoring & Observability: SolarWinds, Splunk.
  • Core Network Services: IPAM, DHCP, DNS.
  • Effective communication with technical and non-technical stakeholders.
  • Ability to document processes and configurations clearly.
  • Willingness to work flexibly and to occasionally work evenings and weekends where exceptional circumstances require it.
  • Travel to remote sites when required which may involve overnight stays.
  • Part of on call rota.

Desirable:

  • Juniper and Cisco certification but experience is more important.
  • Ideally experience of working in a secure environment.
  • Data Centre experience advantageous.
  • Extreme Switch knowledge desirable.
  • Experience/certification with at least one of the major network vendors. - JNCIS-ENT, JNCIS-DC (preferably JNCIP-DC), JNCIA-SEC

If you feel you have the skills and experience needed for this role; please do apply now.

By applying for this job and submitting your CV to Parker Shaw, you acknowledge and give permission for us to pass it to an associate company for resourcing purposes. We outsource some of our resourcing calls to a trusted third-party company and they may call you to discuss this opportunity with you. They will then report back to us with the outcome of their conversation with you, where upon we will decide whether to submit your CV to the end client. Please be assured that the third-party company do not store or control any of your data, this is all done by ourselves (Parker Shaw).