Job Description: 55,000 - 60,000 per annumNetwork EngineerOpportunity to gain SC ClearanceLocation: Onsite in BracknellOur purpose is to make the world more sustainable by building trust in society through innovation. As a DJSC 3rd Line Senior Network Engineer you will contribute to this by joining a multi-skilled, multi-disciplinary team working collaboratively across multiple services within a shared Environment.Your role will involve: Providing operational support to a large enterprise network that runs 24/7 across two data centres and remote offices throughout the UK. You will collaborate with the rest of the team to maintain on premise networks to support BAU activities, perform network configuration changes, upgrades and liaise with third parties and other internal teams as well as our end customer. You will also have the opportunity to be involved in project-based work, as you will be working closely with the project delivery team. Additionally, you will provide technical direction and mentoring to the 2nd line network team.Your transferable skills and experience:Solid understanding and working knowledge of core routing and switching at CCNA/CCNP levelHands-on experiencing in troubleshooting enterprise networksSolid understanding of IP routing (BGP, OSPF, static routing, HSRP, VRF, tunneling protocols)Solid understanding of Layer 2 technologies (VLANs, port-security, 802.1X, spanning-tree)Experience with firewalls - Cisco Firepower, Cisco ASA and related features (ASDM