Network Cloud Infrastructure Design Engineer (Network)

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., * 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. This is an on-call responsibility and does not mean continuous working during that period.

This role requires strong operational and design expertise in data centre networking, with a focus on modern fabric and overlay technologies., * 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

Highly desirable skills

• 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 Required for the Role

• 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.
• Experience with Cisco ACI and or VMware NSX is highly desirable.
• Strong troubleshooting skills and the ability to work effectively across teams.

• On target 10% on target bonus
• BT Pension scheme, minimum 5% Employee contribution, BT contribution 10%
• 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
• Option to join BT Shares Saving schemes.