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Enterprise Network Engineer

2 months ago


London, Greater London, United Kingdom Janus Henderson Investors Full time
About the Role

We are seeking a highly skilled Senior Network Engineer to join our team at Janus Henderson Investors. As a key member of our IT department, you will be responsible for designing, implementing, and maintaining our network infrastructure.

Key Responsibilities
  • Design and implement network infrastructure solutions using Cisco ACI, Cisco IOS-XE routers and switches, Cisco Nexus datacenter switches, and Cisco 9800 Wireless LAN Controllers.
  • Configure and manage Palo Alto firewalls, including Panorama, and ensure that security policies are up to date and aligned with industry and internal standards.
  • Implement and manage network access control using Cisco ISE for 802.1x and TACACS.
  • Operate F5 Big-IP load balancers to ensure high availability and performance of critical applications.
  • Maintain and troubleshoot BGP and OSPF routing protocols and participate in the design and implementation of routing and switching solutions.
  • Monitor the network using LogicMonitor network monitoring solutions and take proactive measures to prevent network outages and performance issues.
  • Manage Wi-Fi in a large office environment and ensure that wireless network performance meets business requirements.
  • Configure and manage WAN Technologies such as Cisco SD-WAN.
  • Implement and manage cloud networking concepts in Microsoft Azure, including virtual networks, subnets, security groups, and ExpressRoute connections.
  • Work in a global, enterprise-class, mission-critical, 7x24x365 network/telecommunication environment.
  • Mentor junior network engineers and contribute to knowledge sharing within the team.
  • Work occasional weekends and participate in the on-call rotation.
Requirements
  • Network design experience.
  • CCNP certification or equivalent experience.
  • Strong experience with Cisco networking technologies, including Cisco IOS-XE routers and switches, Cisco Nexus datacenter switches, and Cisco 9800 Wireless LAN Controllers.
  • Expertise in Palo Alto firewalls, including Panorama, and network access control using Cisco ISE for 802.1x and TACACS.
  • Good understanding of F5 Big-IP load balancers, BGP and OSPF routing protocols, and SolarWinds network monitoring solutions.
  • Knowledge of cloud networking concepts in Microsoft Azure and virtualized datacenter environments.
  • Strong automation and scripting skills using Python, Ansible, and Terraform.
  • Excellent communication and interpersonal skills, with the ability to work collaboratively with other IT teams, vendors, and business stakeholders.
What We Offer
  • Hybrid working and reasonable accommodations.
  • Generous Holiday policies.
  • Excellent Health and Wellbeing benefits including corporate membership to ClassPass.
  • Paid volunteer time to step away from your desk and into the community.
  • Support to grow through professional development courses, tuition/qualification reimbursement and more.
  • All-inclusive approach to Diversity, Equity and Inclusion.
  • Maternal/paternal leave benefits and family services.
  • Complimentary subscription to Headspace – the mindfulness app.
  • All employee events including networking opportunities and social activities.
  • Lunch allowance for use within our subsidized onsite canteen.