Lead Infrastructure Engineer

Lead Infrastructure Engineer/Manager London SW15 - Hybrid 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 • Strong Microsoft infrastructure background • 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.