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Senior Network Engineer

Job in Creve Coeur, St. Louis County, Missouri, USA
Listing for: Cushman & Wakefield
Full Time position
Listed on 2026-06-27
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity
  • Engineering
    Systems Engineer, Cybersecurity
Salary/Wage Range or Industry Benchmark: 102000 - 120000 USD Yearly USD 102000.00 120000.00 YEAR
Job Description & How to Apply Below

Senior Network Engineer

Cushman & Wakefield is seeking a highly motivated Senior Network Engineer to focus on delivering the new Zero Trust Security standards to our Branch offices, Data Centers and Cloud environments.

Responsibilities
  • Design, implement, and support enterprise network services across LAN, WAN, SD-WAN, VPN, routing, switching, wireless, firewalls, and secure remote access
    .
  • Provide senior hands‑on engineering expertise across Fortinet, Palo Alto, Silver Peak, Cisco branch and data centre networking
    , and zero trust controls, ensuring solutions are scalable, supportable, and aligned to enterprise standards.
  • Translate platform standards and architectural direction into detailed designs, build configurations, and implementation plans.
  • Deliver engineering outcomes across branch, campus, edge, cloud, and Azure networking
    , including integration with VMware-hosted workloads
    .
  • Own key engineering activities including network lifecycle management, capacity and resilience planning, service optimization, and remediation
    .
  • Lead complex changes, migrations, and deployments such as SD-WAN transformations, branch refresh programmes, firewall and segmentation changes, and cloud connectivity enablement
    .
  • Provide Level 4 escalation support for major incidents and complex technical issues, including deep troubleshooting, root cause analysis, recovery planning, and vendor engagement.
  • Drive continuous improvement in network and security services through standardization, reliability improvements, documentation, and knowledge transfer.
  • Work closely with security teams, operations teams, and managed service providers to ensure services are delivered securely, transitioned effectively, and operated to agreed standards.
  • Travel to project sites, offices, data centres, and partner locations as required to support assessments, implementation activity, cutovers, stakeholder engagement, and critical go‑live or remediation work.
General Network Operations & Engineering
  • Support the design, planning, implementation, and continuous improvement of secure, scalable, and high‑performing network services.
  • Maintain global network performance, availability, integrity, and security to enterprise standards.
  • Contribute to data centre, cloud and core infrastructure networking, lifecycle planning, upgrade strategies, and service roadmaps.
  • Contribute to, produce, and maintain processes, procedures, operational and architectural documentation, that meet CIO/CTO Standards.
  • Participate in global engineering initiatives and cross‑functional working groups.
Required Skills
  • Deep hands‑on experience with Cisco enterprise networking and wireless
    , including Cisco ISE as an authentication backend
    , and Fortinet firewall, switching, wireless, and SD‑WAN
    , including design and support of corporate wireless environments.
  • Strong expertise in Layer 2 / Layer 3 networking
    , including routing protocols such as BGP, OSPF, and EIGRP
    , plus high availability and segmentation design.
  • Extensive experience with SD‑WAN technologies
    , particularly Silver Peak and Fortinet SD‑WAN
    , including design, migration, implementation, optimisation, and support.
  • Strong experience in network security and zero trust models
    , including firewall policy design, segmentation, secure access models, and Zscaler (ZIA, ZPA, ZDX) or equivalent SASE platforms.
  • Experience with Azure networking
    , including hybrid connectivity, segmentation, and Virtual WAN Hub
    , alongside networking integration with VMware environments
    .
  • Good knowledge of monitoring and observability platforms such as Solar Winds
    , and strong understanding of incident, problem, and change management in large enterprise environments.
  • Experience with automation and infrastructure‑as‑code
    , using tools such as Python, Ansible, JSON, Jinja2 or YAML.
Additional Skills
  • Strong troubleshooting and analytical capability across complex enterprise environments.
  • Ability to manage multiple priorities in a fast‑paced global setting.
  • Clear communication, stakeholder engagement, and mentoring capability.
  • Strong focus on delivery, ownership, and service reliability
    .
Technology Stack (Relevant Exposure)
  • Cisco (routing, switching, wireless, Nexus, Meraki, ISE)
  • Fortinet…
Position Requirements
10+ Years work experience
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