Senior Network Engineer – Data Centre & AWS

Levy Global; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Job summary

Levy Global in London is seeking a Senior Network Engineer to join its network engineering team. You will design, deploy and support large-scale data centre and cloud network infrastructures, focusing on high-performance connectivity and AWS networking.

The role requires hands-on expertise with BGP, EVPN/VXLAN, spine-leaf architectures, and experience with Cisco, Arista or Juniper. You will produce designs, automation scripts and documentation while ensuring resilience and scalable operations.

Qualifications

• Senior network engineer with hands-on BGP, EVPN and VXLAN expertise.
• Experience designing and operating spine-leaf data centre architectures.
• Strong knowledge of routing, switching, TCP/IP and network protocols.

Responsibilities

• Designing, deploying and supporting large-scale data centre network architectures.
• Building and maintaining EVPN/VXLAN environments using spine-leaf architectures.
• Working with BGP and advanced routing technologies across complex network environments.
• Supporting and optimising high-performance networking infrastructure.
• Working with RoCE/RDMA and other high-performance networking technologies.
• Designing and supporting AWS network connectivity, including VPCs, Transit Gateway and Direct Connect.
• Troubleshooting complex routing, switching and network performance issues.
• Improving network resilience, scalability and availability.
• Developing network automation and infrastructure-as-code solutions.
• Producing technical designs, documentation and operational procedures.

Skills

Senior network engineer

BGP

EVPN

VXLAN

spine-leaf architectures

AWS networking

Python

Ansible

Terraform

CI/CD

Infrastructure as Code

Network automation

Multi-region cloud networking

Education

CCIE or equivalent

AWS Advanced Networking Specialty

Tools

Cisco Nexus

Arista

Juniper

Job description

Location: London | Hybrid

I'm working with a leading global financial services firm looking to hire a Senior Network Engineer to join its network engineering team in London.

This is an opportunity to work on complex, large-scale network infrastructure, with a focus on data centre networking, advanced routing, high-performance connectivity and AWS cloud networking.

The team is looking for someone with strong technical foundations who enjoys designing, building and troubleshooting complex network environments and taking ownership of challenging engineering projects.

The Role

You'll be responsible for designing, implementing and supporting network infrastructure across data centres and cloud environments.

Key responsibilities include:

• Designing, deploying and supporting large-scale data centre network architectures.
• Building and maintaining EVPN/VXLAN environments using spine-leaf architectures.
• Working with BGP and advanced routing technologies across complex network environments.
• Supporting and optimising high-performance networking infrastructure.
• Working with RoCE/RDMA and other high-performance networking technologies.
• Designing and supporting AWS network connectivity, including VPCs, Transit Gateway and Direct Connect.
• Troubleshooting complex routing, switching and network performance issues.
• Improving network resilience, scalability and availability.
• Developing network automation and infrastructure-as-code solutions.
• Producing technical designs, documentation and operational procedures.

What We're Looking For

• Strong experience in senior network engineering or network architecture roles.
• Extensive hands-on experience with BGP, EVPN and VXLAN.
• Experience designing and operating spine-leaf data centre architectures.
• Strong knowledge of routing, switching, TCP/IP and network protocols.
• Experience with major networking platforms such as Cisco Nexus, Arista or Juniper.
• Practical experience with AWS networking, including VPCs, Transit Gateway and Direct Connect.
• Strong troubleshooting skills and the ability to investigate complex network issues independently.
• Experience working in large-scale, business-critical network environments.
• CCIE certification or equivalent senior-level technical expertise.
• AWS Advanced Networking Specialty certification.
• Experience with RoCE, RoCEv2, RDMA or InfiniBand.
• Background in HPC, GPU infrastructure or high-performance computing environments.
• Python, Ansible and Terraform.
• Network automation, CI/CD and infrastructure as code.
• Experience with large-scale, multi-region cloud networking.