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Network Technical Design & Architect

Job Description

Job Title: Network Security Engineer (Fortinet & Cisco)

Job Type: Contract- Outside IR35


Job Summary:

We are seeking an experienced Network Design Architect with a strong background in Fortinet and Cisco technologies to lead the design and implementation of secure, high-performance network solutions. This role requires deep expertise in network architecture, security design, and configuration deployment, particularly across Fortinet SD-WAN, Fortinet Firewalls, Cisco Nexus switches, and enterprise wireless and LAN environments.


Key Responsibilities:


  • Lead the design and architecture of secure and scalable network infrastructures.
  • Architect solutions involving Fortinet SD-WAN and Fortinet Firewall platforms.
  • Design and validate architectures using Cisco Nexus switching platforms and Cisco Wi-Fi/LAN.
  • Develop and document end-to-end security and network designs, including routing, switching, firewall placement, and segmentation strategies.
  • Write detailed configuration templates and deployment guides.
  • Perform hands-on configuration, testing, and validation of network solutions.
  • Modify and optimize existing configurations on deployed infrastructure.
  • Collaborate with stakeholders to align network designs with business and technical requirements.
  • Provide technical leadership and mentorship to implementation and operations teams.
  • Maintain up-to-date documentation on network architecture and changes.


Required Skills & Experience:


  • Extensive experience with Fortinet SD-WAN and Fortinet Next-Gen Firewalls.
  • Deep understanding of Cisco Nexus platforms and enterprise wireless/LAN architectures.
  • Strong background in routing & switching, firewall design, and network segmentation.
  • Proven ability to write and load configurations on a variety of network devices.
  • Experience designing both greenfield and brownfield (existing) environments.
  • Ability to work with incomplete or evolving equipment inventories and still deliver scalable design.
  • Strong documentation skills, including design diagrams and technical documentation.
  • Excellent communication skills to present solutions to both technical and non-technical stakeholders.
  • Qualifications:


    • Fortinet NSE 4/5/7 or higher certification.
    • Cisco CCNP/CCIE or equivalent experience.
    • Experience working in regulated industries (finance, healthcare, etc.) is a plus.
    • Familiarity with network automation and scripting is an added advantage.

Network Technical Design & Architect

Bromley, UK
Full time

Published on 07/05/2025

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