Technical Network Architect

Onyx-Conseil; Remote; GBP 80,000 - 100,000; Full time

Job summary

A prominent consultancy firm in the UK is seeking a Technical Network Architect for an initial 5-month contract. The role is mainly remote, requiring occasional travel to London. Candidates should have over 8 years of technical design lead experience in network security architecture. You will be responsible for end-to-end technical design and leading complex teams. This position offers between £320-£400 per day, and successful applicants need to be eligible for SC Clearance.

Qualifications

• 8+ years of experience in network security architecture or senior engineering.
• Hands-on design/migration of network tools and platforms at scale.
• Proven ability to lead multi-vendor and cross-disciplinary teams.

Responsibilities

• Lead end-to-end technical design decisions for network architecture.
• Facilitate workshops and present to senior stakeholders.
• Provide proactive communication and document decisions.

Skills

Network security architecture

Leadership in complex environments

BGP and OSPF fundamentals

Scripting with Python

Change tools familiarity

Tools

Visio

draw.io

ServiceNow

Remedy

SharePoint

Job description

Our client is looking for a Technical Network Architect to work on an initial 5 month contract. The position would be mainly remote with onsite travel to London required 2-3 days per month. This would be an Outside IR35 engagement offering between £320-£400 per day and candidates would need to be eligible to go through an SC Clearance.

Mandatory

• Proven experience as a Technical Design Lead / Technical Authority.
• Ownership of end-to-end technical design decisions (not implementation-only roles).
• Demonstrable leadership in complex enterprise or carrier-scale environments.

Required Skills & Experience

• Technical depth
  • 8+years in network security architecture or senior engineering across enterprise environments.
  • Hands on design / migration of at least two of the following at scale: Check Point R8x firewalls, Cisco or Juniper LAN and WAN, F5 BIG IP LTM/GTM/AFM, Zscaler ZIA & ZPA, SD WAN.
  • Strong routing fundamentals (BGP, OSPF, route maps, redistribution).
  • Scripting or automation (Python, Ansible, Terraform) is desirable.
• Soft skills
  • Proven ability to lead multi-vendor, multi-disciplinary teams.
  • Confident facilitator‑able to run workshops, present to senior stakeholders and manage challenging conversations.
  • Proactive communicator: provides unsolicited progress updates, raises blockers early, documents decisions promptly.
• Documentation & tooling
  • Expertise with Visio or draw.io for architecture diagrams; PowerPoint for executive decks; Word/Confluence for LLDs.
  • Familiarity with change tools (ServiceNow, Remedy) and SharePoint governance.

Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take up to a minimum 10 weeks.

LA International is a HMG approved ICT Recruitment and Project Solutions Consultancy, operating globally from the largest single site in the UK as an IT Consultancy or as an Employment Business & Agency depending upon the precise nature of the work, for security cleared jobs or non-clearance vacancies, LA International welcome applications from all sections of the community and from people with diverse experience and backgrounds.