Senior Network Engineer - Consultancy
Job in
Greater London, London, Greater London, W1B, England, UK
Listed on 2026-05-03
Listing for:
Hamilton Barnes Associates Limited
Per diem
position Listed on 2026-05-03
Job specializations:
-
IT/Tech
Systems Engineer, Cybersecurity, Network Engineer, IT Specialist
Job Description & How to Apply Below
Responsibilities
- Design, build, and implement enterprise network solutions
- Deliver across a major data centre transformation programme
- Support network migrations, optimisation, and traffic engineering
- Decommission legacy infrastructure and consolidate services
- Configure and manage routing, switching, and firewall technologies
- Own network performance, stability, and continuous improvement
- Produce technical documentation including runbooks and handovers
- Collaborate with cross-functional teams across infrastructure and operations
- Support planned migration activities (including occasional weekend work)
- Strong experience with Cisco Data Centre technologies
- Solid Routing & Switching expertise (CCNP level or equivalent)
- Proven ability to configure and troubleshoot enterprise-grade networks
- Hands-on experience with Fortinet / Forti Gate firewalls
- Strong understanding of network security principles
- Ability to operate both independently and within a team
- Experience working in complex, large-scale environments
- Experience with Juniper networking technologies
- Exposure to Palo Alto firewalls
- Background in financial services or regulated environments
- Cisco Data Centre networking technologies
- Enterprise routing and switching
- Fortinet / Forti Gate firewalls
- Multi-vendor environments (Cisco, Juniper)
- Large-scale enterprise network infrastructure
- Data centre environments and migrations
- London – Hybrid working
- 3 days onsite (likely reducing to 1–2 days)
- Occasional data centre visits
- Some out-of-hours work during migration phases
- Work on a business-critical transformation programme
- High ownership within a core engineering team
- Exposure to large-scale, complex network environments
- Strong visibility across infrastructure and leadership teams
- £70,000 base salary
- Competitive package depending on experience
Position Requirements
10+ Years
work experience
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