Senior Network Engineer – Trading Infra (London)

Berenberg; Greater London; On-site; GBP 70,000 - 90,000; Full time

Job summary

A leading European private bank in London is seeking a Senior Network Engineer to contribute to the design and maintenance of a secure and scalable network infrastructure. The ideal candidate will have deep expertise in BGP and network architecture, hands-on experience with Arista devices, and strong troubleshooting skills. The role offers a supportive environment for professional growth, exciting challenges, and a generous benefits package including flexible hours and a private pension plan.

Benefits

Private pension plan – 10% of base salary contribution

Generous 30 day holiday allowance

Private Health Insurance

Life Insurance scheme

Flexible working hours

Enhanced parental leave policies

Employee Assistance Programme

Qualifications

• Proven, hands‑on experience designing and troubleshooting BGP topologies.
• Ability to design and implement resilient Layer 3 network architectures.
• Experience with configuration, operation, and troubleshooting of Arista devices.

Responsibilities

• Work with the Lead Network Architect to translate designs into implementation plans.
• Lead deployment and configuration of core network infrastructure projects.
• Administer the enterprise security posture using Fortinet devices.

Skills

Expertise in BGP

Network Architecture

Hands-on experience with Arista Networks

Knowledge of Principle of Least Privilege

Complex Troubleshooting

Tools

Terraform

Ansible

Python

Job description

A leading European private bank in London is seeking a Senior Network Engineer to contribute to the design and maintenance of a secure and scalable network infrastructure. The ideal candidate will have deep expertise in BGP and network architecture, hands-on experience with Arista devices, and strong troubleshooting skills. The role offers a supportive environment for professional growth, exciting challenges, and a generous benefits package including flexible hours and a private pension plan.