Lead Network Engineer

Lead Network Engineer - £850 Per Day – 12 Months – London (Hybrid) – Investment Banking

Role Overview

We are looking for an experienced Lead Network Engineer to take technical ownership of complex network and hosting environments across data centres, cloud, internet-facing services and low‑latency trading infrastructure.

You will act as a senior technical authority, shaping architecture, leading major infrastructure change and ensuring environments remain secure, resilient, scalable and highly available.

Role & Responsibilities

• Lead the architecture of secure and resilient hosting platforms across on‑premise data centres, colocation and cloud environments.
• Design and support connectivity across AWS, Azure, GCP and Oracle Cloud.
• Act as the senior technical authority across complex L2–L7 networking, hosting and connectivity.
• Design internet-facing environments covering DMZ, ingress/egress, load balancing, DNS, CDN and secure access.
• Architect and optimise market data and low‑latency environments, including Bloomberg, Reuters and exchange connectivity.
• Support high‑availability infrastructure for payment systems and regulated transactional platforms.
• Lead transformation programmes across data centre modernisation, ACI, cloud adoption and perimeter redesign.
• Drive improvements around network performance, resilience, automation and observability.
• Use technologies such as Python, Ansible and Infrastructure-as-Code to improve operational efficiency.
• Work closely with cloud providers, telcos, exchanges, vendors and senior internal stakeholders.

Skills & Experience

• 8–12+ years' experience across network engineering, hosting or infrastructure architecture.
• Strong knowledge of BGP, OSPF, multicast, low‑latency networking and high‑availability design.
• Experience working across AWS, Azure, GCP and/or Oracle Cloud.
• Strong background in network security, segmentation, Zero Trust, encryption and DDoS protection.
• Experience supporting market data, trading, payment or other performance‑critical environments.
• Strong automation experience using Python, Ansible and IaC tooling.
• Previous experience within financial services or another highly regulated environment.
• Strong stakeholder management with the ability to communicate technical decisions clearly to senior audiences.

Rate & Duration:

• 12 Months
• London (Hybrid)

Lead Network Engineer - £850 Per Day – 12 Months – London (Hybrid) – Investment Banking