Cantor Fitzgerald
Network Engineer
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Job Title: Network Engineer
About the Role
This role designs, implements, and evolves a highly available global financial network spanning data centres, trading floors, and enterprise sites. You will lead network design and delivery work — new builds, platform refreshes, and third-party service turn-ups — while acting as senior technical escalation for complex network issues. The role suits an engineer with excellent data centre and enterprise network fundamentals, a solid understanding of EVPN and VXLAN on Arista, a strong drive to automate manual processes, and an interest in applying AI tooling creatively to operational problems.
Key responsibilities
- Design and implement data centre and enterprise network solutions, including new installations, platform refresh and redesign, and site migrations
- Deliver network projects end to end: design documentation, build, testing, cutover, and handover to operations
- Turn up and support services to third parties, including CDN, extranet services, and VPNs
- Lead routing and switching design and configuration across Juniper, Arista, and Cisco platforms, covering BGP, OSPF, EIGRP, route manipulation, redistribution, and filtering
- Design, build, and support EVPN/VXLAN data centre fabrics on Arista platforms
- Act as senior escalation for complex network incidents, contribute to root cause analysis, and drive permanent resolutions
- Build network automation and tooling (Python, Ansible) to remove manual effort, and apply AI creatively to monitoring, troubleshooting, and operational problems
- Work with and refine enterprise monitoring solutions so monitoring and alert coverage keeps pace with the estate
- Maintain infrastructure hygiene through code upgrades, EOL hardware replacement, and network audits
- Keep design and support documentation accurate for internal and customer support teams
- Implement BAU changes in accordance with the change management process (break fix, moves, adds, and changes)
- Mentor junior engineers and analysts, and ensure smooth handover of network issues between regions
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Skills / Experience Required
- Strong routing and switching design and implementation experience across Junos, Arista EOS, and Cisco IOS, including EIGRP, OSPF, and BGP
- Solid understanding of EVPN and VXLAN, with hands-on design and implementation experience on Arista platforms
- Excellent data centre and enterprise network fundamentals, from design through implementation and operation
- Hands-on experience with Palo Alto firewalls and F5 load balancers
- Strong understanding of Wi-Fi networking principles, including design, installation, maintenance, and troubleshooting
- Scripting and automation experience (Python, Ansible, or similar) applied to real network problems
- Resilient under pressure, with a proactive, solutions-focused approach to incident management
- Good communicator, both written and verbal, with strong time management and prioritisation of workload
- Curious, creative approach to applying AI tools to improve network operations, monitoring, and troubleshooting
Qualifications
- Cisco CCNP Routing & Switching
- JNCIP-Junos certification
- Wireless foundational certification (required)
- Bachelor’s degree in Computer Science, Engineering, or a related field, or equivalent practical experience
Desirable Skills
- Experience supporting a high-volume, high-availability financial trading environment
- Experience of low-latency network design or multicast market data
- Extreme Networks platform experience
- Exposure to network-as-code, source-controlled network configuration, or CI/CD for network changes
- Experience with cloud networking or hybrid connectivity (GCP, AWS, Azure)
- Familiarity with SD-WAN, network segmentation, or zero-trust network models
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Systems & Tools
- Routing and switching: Juniper Junos, Arista EOS, Cisco IOS
- Security and load balancing: Palo Alto, F5
- Wireless: Extreme Networks or similar enterprise Wi-Fi platforms
- Automation and scripting: Python, Ansible, Git
- Monitoring: enterprise network monitoring and alerting platforms, Grafana, Splunk
- Service management: ServiceNow, Jira, Confluence
- AI tools and chatbots such as Claude, ChatGPT and Microsoft Copilot
Company Overview
Cantor Fitzgerald, founded in 1945, is a premier global financial services and technology firm with a presence in over 30 countries and more than 14,000 employees worldwide. Renowned for innovation, scale, and deep expertise across capital markets, Cantor Fitzgerald delivers cutting‑edge solutions to institutional clients including banks, hedge funds, trading firms, and corporations.
As one of the few remaining private partnerships on Wall Street, Cantor Fitzgerald combines entrepreneurial agility with long‑term vision—offering leadership in Equity and Debt Capital Markets, Sales & Trading, SPAC underwriting, Structured Products, Prime Brokerage, Asset Management, and Commercial Real Estate Services.
If you’re looking to join a firm that values resilience, innovation, and client focus, Cantor Fitzgerald offers an exceptional platform to make an impact in shaping the future of global financial markets.
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