Network Installation Engineer - Must have an Active DV Clearance We're looking for an experienced Network Installation Engineer to support delivery within the secure Defence and National Security sector. You'll work across a variety of environments and take responsibility for implementing, configuring and supporting secure network infrastructure. You'll be joining a technically capable team and playing a key part in the full delivery lifecycle, from surveys and designs to implementation, support and service handover. Key responsibilities: * Work closely with technical teams to understand project requirements * Carry out site surveys and support physical network design * Produce logical network designs, Bill of Materials, Build Guides and Work Instructions * Configure and implement both physical and virtual networking solutions * Troubleshoot technical issues and provide 3rd line fault resolution * Support live implementations and contribute to successful handover into service * Update network configuration documentation and maintain accurate records * Communicate effectively with internal teams, stakeholders and customers Essential skills and experience: * Strong knowledge of WAN connectivity and routing protocols * Experience with Juniper and Catapan configuration, design and support * Ability to deliver network designs, including survey planning and design approvals * Familiarity with producing full logical designs and supporting documentation * Solid hands-on experience with network implementation and troubleshooting * Proven 3rd line support experience in secure or complex environments * Confident communicator, comfortable taking ownership and making decisions