Senior Network Engineer (Cisco Data Center) - Systems Integrator

Looking for a role where you can grow?

Join a trusted IT services partner supporting some of the UK’s most demanding and fast-paced businesses. Established in 2013, the organization has built its reputation on technical excellence, strong people, and the successful delivery of critical IT projects with clarity and precision. Through a hands-on, collaborative approach—whether embedding specialists within client teams or managing infrastructure end-to-end—it delivers long-term value and measurable impact for its clients.

Apply today and take the next step in your career.

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)

Skills / Must Have:

• 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 / FortiGate firewalls
• Strong understanding of network security principles
• Ability to operate both independently and within a team
• Experience working in complex, large-scale environments

Desirable Skills:

• Experience with Juniper networking technologies
• Exposure to Palo Alto firewalls
• Background in financial services or regulated environments

Working Setup:

• Cisco Data Centre networking technologies
• Enterprise routing and switching
• Fortinet / FortiGate firewalls
• Multi-vendor environments (Cisco, Juniper)
• Large-scale enterprise network infrastructure
• Data centre environments and migrations

Location & Working Pattern:

• London – Hybrid working
• 3 days onsite (likely reducing to 1–2 days)
• Occasional data centre visits
• Some out-of-hours work during migration phases

Benefits:

• 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

Salary:

• £70,000 base salary
• Competitive package depending on experience