Network Architect Lead

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. Security Clearance: Active DV Clearance is essential Sole UK National

As a Senior Network Engineer, you will be employed to undertake a defined range of Network engineering design, development and test activities. You will contribute towards ensuring that the capacity, reliability and availability of network services meet the requirements of the organisation. You will also assist with the resolution of client-based issues, this will require taking ownership of such cases from the outset all the way through to resolution. You will also be expected to undertake any project work requirements on request.

The role will include:

Reviewing, on a daily basis, the status of a various networks, logging incidents where appropriate. Escalating, in advance, to the Network Manager any likely breaches of agreed deadlines. As the technical lead within the team you will be the point of escalation for any technical issues and queries, and assist with prioritisation and tasking to other team members. Working with customers, project leads, 3rd parties and other stakeholders to discuss technical service issues assisting with the resolution of said issues. Working with project leads to assist with design, development and testing of project-based work such as creating LLD's. Maintaining up-to-date knowledge on network technologies. Working to assist with capacity & availability management of various networks. Problem Solving: investigate and resolve problems for services within their own area of responsibility. Provisioning network services and devices where appropriate.

3. Experience of support in a large and complex network environment at a Senior network engineering level., Sole UK National 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 Client (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.

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