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Senior Network Engineer
Req ID: 60497
Job Function: Engineering
Posting Start Date: 08/07/2026
Posting End Date: 22/07/2026
Division: Networks
Job Location: GBR Bristol - Assembly, GBR Sheffield Endeavour, GBR-Birmingham-Three Snowhill, GBR-London-BTHQ One Braham, GBR-Manchester-New Bailey
Advertised Salary: Competitive + great benefits
Locations: Sheffield, London, Birmingham, Manchester, Bristol
Working Style: 3 days a week in office, 2 days from home
About The Role
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.
A unique opportunity to work within a specialist team supporting BT's strategic private cloud platform, combining deep technical exposure, continuous learning, and excellent career development in a fast-paced network environment.
What You’ll Be Doing
- 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.
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Essential Skills / Experience
- 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.
Desirable Skills / Experience
- 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., SolarWinds, PRTG, NetFlow).
- Effective documentation and diagramming skills (e.g., Visio, Lucidchart).
- Bachelor’s/Master’s degree in Computer Science, Information Systems, Engineering, or other related fields.
Our Package
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
- Equalized 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
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You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.
About BT Group
BT Group is the UK’s leading communications group and the holding company behind some of the country’s most recognised brands – including BT, EE, Openreach and Plusnet. Our purpose is as simple as it is ambitious: we connect for good. Our customers include consumers, small, medium and large businesses, public sector organisations and other communications providers.
BT Group’s role is about setting direction, unlocking value and creating the conditions for our brands and businesses to thrive.
Having come through the most capital-intensive phase of our fibre investment, our focus now is on what comes next – simplifying how we operate, using technology and AI to work smarter, and organising ourselves to serve customers better and grow sustainably. Group teams shape strategy, policy, brand, capital allocation and transformation, helping the whole organisation perform at its best.
We have a singular culture that unites all our people: we are customer-first challengers, who are committed, clear and connected. These behaviours unite us as one team to deliver for our colleagues, our customers, our stakeholders and the country. Joining BT Group means working at the heart of a business that matters to the UK, with the opportunity to shape decisions, influence outcomes and help set the future course of one of the country’s most important companies.
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