Network Engineer

2 weeks ago

Greater London, United Kingdom Xibis Ltd Full time

Network Engineer – Xibis Ltd Position ID: J1125-1437 | Employment Type: Full Time | Location: United Kingdom, London Position Description CGI is looking for an experienced Network Engineer to help shape the secure, scalable, and future‑ready network architectures that enable mission‑critical outcomes across our Space, Defence and Intelligence business. In this role, you will design and optimise advanced on‑premises and cloud network solutions, working closely with engineering, cloud, and security teams to deliver high‑value innovations that drive real operational impact. You’ll have the autonomy to solve complex challenges, the scope to contribute creative ideas, and the support of a collaborative community committed to helping you thrive. This is an opportunity to take ownership of cutting‑edge network engineering in one of CGI’s most influential and rewarding technical environments. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. Key Responsibilities Design & Architect: Lead enterprise, virtual and cloud network designs across Cisco, Juniper, Arista and SDN/SD‑WAN ecosystems. Engineer & Optimise: Deliver routing, switching, and service provider technologies including BGP, OSPF, EVPN/VXLAN and MPLS. Secure & Protect: Implement advanced firewall, segmentation, PKI and zero‑trust controls across hybrid environments. Automate & Streamline: Apply automation, scripting and intent‑based networking to enhance reliability and operational efficiency. Integrate & Enable: Build cloud‑ready connectivity patterns across AWS, Azure and Google Cloud, including VPC/VNet design and interconnects. Monitor & Improve: Use observability and WAN optimisation tools to ensure high performance across global infrastructures. Required Qualifications To succeed in this position, you should bring strong experience designing and operating complex network infrastructures across enterprise, virtualised and cloud platforms. You’ll be comfortable working with modern routing, switching, SDN/SD‑WAN, firewalls, PKI and cloud connectivity, with the ability to collaborate across multiple technical disciplines. Essential Qualifications Extensive hands‑on experience with Cisco, Juniper, and/or Arista networking platforms Strong knowledge of BGP, OSPF, IS‑IS, EVPN/VXLAN, MPLS and high‑availability protocols Experience with SD‑WAN technologies (Cisco SD‑WAN, Meraki, Aruba, Palo Alto Prisma) Familiarity with AWS, Azure and/or GCP networking (VPC/VNet architecture, interconnects) Experience with NSX‑T/V, Nutanix AHV or Hyper‑V networking Strong understanding of firewalls, load balancers, PKI and segmentation Ability to work within secure environments and meet UK clearance requirements Skills Cisco ACI Linux Clearance & On‑Site Requirement Due to the secure nature of this programme, you will need to hold High Level Clearance or be willing to go through this clearance. This position will require on‑site work. What You Can Expect From Us Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because you are invited to be an owner from day 1 and we call ourselves CGI Partners rather than employees. You’ll develop innovative solutions, build relationships with teammates and clients, and have opportunities to deepen your skills and broaden your horizons. We provide a supportive environment with health and wellbeing focus, and access to global capabilities. #J-18808-Ljbffr

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