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.
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