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Network Cloud is responsible for delivering BT’s next-generation private cloud and data centre platforms, which underpin a wide range of BT services and support business-critical and regulated workloads. The Network Cloud VMware Platforms team designs, builds and operates the data centre networking that supports these environments. This includes modern EVPN/VXLAN underlay fabrics, integration with VMware NSX overlays, and multi-tenant network architectures aligned to security, resilience and compliance requirements. This role is critical to ensuring BT’s private cloud platforms are scalable, secure and operationally robust. The networks delivered by this team form the foundation for compute, storage and platform services consumed by multiple internal tenants across BT. In this role, you will contribute to the design, standardisation and operation of BT’s data centre network architecture. You will work across EVPN/VXLAN fabrics, Cisco ACI and NSX-based networking, collaborating closely with compute, security and operations teams to deliver consistent, reliable network services. Your work will directly influence the stability, scalability and security of BT’s private cloud platforms and support BT’s wider cloud and digital transformation strategy.
Job Responsibility:
Design, build and support data centre network infrastructure for private cloud platforms
Contribute to High Level and Low Level Designs aligned to BT architecture and network standards
Design and operate EVPN/VXLAN network fabrics
Support and develop Cisco ACI or equivalent data centre network solutions
Integrate underlay networks with VMware NSX overlays and services
Troubleshoot and resolve complex, high-severity network issues
Support routing, switching and control plane technologies including BGP
Contribute to network automation and standardisation initiatives
Produce and maintain technical documentation, diagrams and operational procedures
Collaborate with compute, security and platform teams to deliver end-to-end solutions
Provide technical guidance to engineering teams and stakeholders
Undertake additional tasks in support of wider Network Cloud objectives
On-call support: Participation in an on-call rota (approximately 1 week in every 3), providing out-of-hours cover on a 24x7 basis
Requirements:
EVPN/VXLAN data centre network architectures
Routing and switching in large-scale environments
BGP and related routing protocols
Experience producing High Level and Low Level Designs
Strong network troubleshooting and diagnostic skills
Solid understanding of IP networking fundamentals
Ability to operate across both design and operational activities
3 years or more in a hands-on network engineering role, including 2nd and 3rd line support, and 3 years or more contributing to network design
Strong understanding of IP networking fundamentals and data centre network architectures
Experience designing or operating EVPN/VXLAN based data centre networks
Experience working in multi-tenant private cloud or shared network environments
Exposure to multi-site or multi-data-centre network designs
Knowledge of public or hybrid cloud networking concepts
Relevant professional certifications such as Cisco CCNA or CCNP, or equivalent experience
SC Clearance eligibility is required for the role
Nice to have:
Cisco Application Centric Infrastructure (ACI)
VMware NSX networking and security
Experience integrating underlay and overlay network designs
Automation experience using tools such as Ansible or Python
Cisco/Checkpoint Firewall experience
Experience with Cisco ACI and or VMware NSX is highly desirable
From January 2025, equal family leave: receive 18 weeks at full pay, 8 weeks at half pay and 26 weeks at the statutory rate. It’s for all parents, no matter how your family is made up
Enhanced women’s health support: including help with menopause symptoms, cancer screenings, period care and more
25 days annual leave (not including bank holidays), increasing with service
24/7 private virtual GP appointments for UK colleagues
2 weeks carer’s leave
World-class training and development opportunities