Senior Network Engineer

Locations:
Sheffield, London, Birmingham, Manchester, Bristol

Working Style: 3 days a week in office, 2 days from home

We are seeking three experienced Senior Network Engineer to lead the design, implementation, and support of enterprise-scale network infrastructure. This role blends hands‑on engineering with strategic design and operational delivery, operational support, both on‑prem and cloud‑based environments.

You will be responsible for architecting secure, scalable, and resilient network solutions that meet business and security requirements, while collaborating across multidisciplinary teams to ensure seamless service delivery.

• Design, configure, and maintain enterprise scale LAN, WAN, and hybrid cloud networks.
• Implement and manage network services including VPNs, VLANs, QoS, DNS, DHCP, ACI and EVPN and segmentation.
• Deploy and support enterprise‑grade routers, switches, and load balancers.
• Collaborate with security teams to enforce access controls and ensure network compliance.
• Troubleshoot complex network issues and perform root cause analysis.
• Monitor network performance, conduct capacity planning, and optimize for reliability.
• Document network architecture, configurations, and failover strategies.
• Ensure alignment with IT policies, audit requirements, and industry best practices.
• Stay up to date with relevant technologies in the area – Reading, attending briefings and talks.

• Cisco Certified Network Professional (CCNP) or equivalent experience (CCNA minimum).
• Demonstrable expertise in switching, routing, load balancing, and network security.
• Track record of delivering complex network solutions within time, cost, and quality targets.
• Ability to dissect and resolve technical problems through structured analysis.
• Experience building effective partnerships across diverse teams and technologies.
• Awareness of industry trends and ability to align network strategy with broader business goals.
• Willingness to participate in an on‑call rota, as a service to the business as part of a team.

• Experience with enterprise‑scale on‑prem virtualisation (VMware).
• Experience with cloud networking (AWS, Azure, hybrid environments).
• Familiarity with SD‑WAN, network automation, and infrastructure‑as‑code.
• Knowledge of Cisco, Juniper, Palo Alto, or other enterprise networking platforms.
• Exposure to monitoring tools (e.g., Solar Winds, PRTG, Net Flow).
• Effective documentation and diagramming skills (e.g., Visio, Lucidchart).
• Bachelor’s/Master’s degree in Computer Science, Information Systems, Engineering, or other related fields.

Tailored benefits make a real difference. That’s why we offer a comprehensive range to support your growth, wellbeing, and everyday life. You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market‑leading paid carers leave with up to 2 weeks off
• Equalised maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market‑leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.