Lead Infrastructure Engineer

Quant Capital; Greater London; On-site; GBP 75,000 - 115,000; Full time

Job summary

Quant Capital is partnering with a regulated financial services firm to hire an Infrastructure Lead/Manager who will guide a small team and own a broad Microsoft and Azure estate. This hands-on leadership role requires managing three engineers while staying close to the technology across infrastructure, cloud, networking and security, ensuring availability, security and high resilience.

You will shape roadmaps, implement best-practice security controls, and collaborate with external security

Qualifications

• 8+ years’ experience across infrastructure, systems or cloud engineering.
• Previous team leadership or management experience.
• Azure experience across VNETs, VPNs, NSGs, DNS, RBAC and resource groups.
• Networking knowledge across TCP/IP, VLANs, VPNs, Wi-Fi and DNS.
• Experience with Cisco, Fortinet or similar network/security hardware.
• Strong security focus across patching, hardening, vulnerability management and incident response.
• Understanding of GDPR, PCI or ISO27001 environments.
• Clear communicator with strong ownership and good judgement.

Responsibilities

• Lead infrastructure operations across cloud, on-premise and end-user platforms.
• Manage and develop a small infrastructure team
• Support Windows Server, Active Directory, Entra, Group Policy, Microsoft 365 and Intune
• Own availability, patching, performance and disaster recovery readiness
• Manage networking, firewalls, VPNs, Wi-Fi, DNS and related connectivity
• Oversee virtualisation, storage, backup and monitoring platforms
• Improve security across endpoints, email, access controls, SIEM, MFA and vulnerability management
• Work with external security partners, pen testers and technology vendors
• Improve documentation, standards and operational processes

Skills

Infra & cloud experience

Team leadership

Azure networking

Security focus

GDPR/ISO27001 knowledge

Ownership & communication

Job description

Quant Capital is working with a regulated financial services firm looking to hire an Infrastructure Lead/Manager to lead a small team and take ownership of a broad Microsoft and Azure estate.

This is a hands-on leadership role. You will manage three engineers while staying close to the technology across infrastructure, cloud, networking and security.

The role

• Lead infrastructure operations across cloud, on-premise and end-user platforms
• Manage and develop a small infrastructure team
• Support Windows Server, Active Directory, Entra, Group Policy, Microsoft 365 and Intune
• Own availability, patching, performance and disaster recovery readiness
• Manage networking, firewalls, VPNs, Wi-Fi, DNS and related connectivity
• Oversee virtualisation, storage, backup and monitoring platforms
• Improve security across endpoints, email, access controls, SIEM, MFA and vulnerability management
• Work with external security partners, pen testers and technology vendors
• Improve documentation, standards and operational processes

What we are looking for

• 8+ years’ experience across infrastructure, systems or cloud engineering
• Previous team leadership or management experience
• Azure experience across VNETs, VPNs, NSGs, DNS, RBAC and resource groups
• Networking knowledge across TCP/IP, VLANs, VPNs, Wi-Fi and DNS
• Experience with Cisco, Fortinet or similar network/security hardware
• Strong security focus across patching, hardening, vulnerability management and incident response
• Understanding of GDPR, PCI or ISO27001 environments
• Clear communicator with strong ownership and good judgement

This role suits someone who wants a broad infrastructure leadership position where they can stay hands-on and improve security, resilience and operational standards.

All applications are handled in strict confidence.