Senior Network Engineer

Morgan McKinley; Greater London; Hybrid; GBP 80,000 - 105,000; Full time

Job summary

Morgan McKinley seeks a Senior Network Engineer SME to drive the technical design and delivery of a major Infrastructure Transformation. London onsite for the first month, then hybrid thereafter, with emphasis on leading HLD/LLD, complex escalations, and multi-site delivery across core routing, switching, and security infrastructure.

The role requires active CCIE certification, deep routing & switching expertise, and experience within healthcare environments to meet regulatory and operational

Qualifications

• Active CCIE certification is essential for this position.
• Proven experience creating robust High-Level Design (HLD) and Low-Level Design (LLD) artifacts.
• Deep technical expertise in core Routing & Switching (BGP, OSPF, EIGRP, MPLS) and Firewall/Security architectures.
• Experience in NHS, Private Healthcare or wider Healthcare sector is advantageous.

Responsibilities

• Author, refine, and own HLD and LLD documents for the infrastructure transformation.
• Serve as the escalation point for complex network issues and high-severity incidents.
• Deliver hands-on configuration, management, and optimization across routing, switching, firewalls, and security systems.
• Collaborate with cross-site teams to ensure secure connectivity and architecture across locations.

Skills

CCIE

HLD/LLD design

Routing & Switching

Firewall/Security

Healthcare sector

Multi-site delivery

Escalation management

Job description

Job Title: Senior Network Engineer (SME) – Infrastructure Transformation

Contract Duration: 6 Months

IR35 Status: Inside IR35

Day Rate: £500/ day (dependent on experience)

Location / Working Pattern: London / Onsite for the 1st month, then Hybrid thereafter

About the Client & Role Overview

My client is currently undergoing a major Infrastructure Transformation Programme across all of their site locations. They are looking to bring on a highly skilled Network Engineering Subject Matter Expert (SME) to drive the technical design and delivery of this transformation.

In this role, you will work closely across all client locations, leading High-Level Design (HLD) and Low-Level Design (LLD) documentation, serving as the top-tier technical authority for complex escalations, and optimizing their core routing, switching, and security infrastructure.

Key Responsibilities

• Network Architecture & Design: Author, refine, and own High-Level Design (HLD) and Low-Level Design (LLD) documents for the client's infrastructure transformation.
• Complex Escalations: Act as the key escalation point for complex technical network issues and high-severity incidents across the organization.
• Core Infrastructure: Deliver hands‑on configuration, management, and optimization across routing, switching, firewalls, and network security systems.
• Multi‑Site Delivery: Collaborate with cross‑functional teams to ensure consistent, secure connectivity and architecture across all client locations.

Key Requirements & Qualifications

• Certification: Active Cisco Certified Internetwork Expert (CCIE) certification is essential for this position.
• Technical Expertise:
• Proven experience creating robust HLD and LLD technical artifacts.
• Deep technical expertise in core Routing & Switching (BGP, OSPF, EIGRP, MPLS) and Firewall/Security architectures.
• Industry Experience: Previous experience working within the NHS, Private Healthcare, or wider Healthcare sector is strongly advantageous due to the specific operational and compliance requirements of the client's environment.