Quant Capital
Infrastructure Team Lead
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Infrastructure Lead – FinTech, Azure, Security
Up to £80,000 + bonus and benefits
Hybrid 2:3 in office
Quant Capital is looking to speak to candidates to join a growing FinTech business based in South West London. Our company is hiring an Infrastructure Engineer to take ownership of core infrastructure and security engineering across a modern Microsoft/Azure environment. This role suits someone who understands scale, cares about uptime, and thinks security-first. Real responsibility from day one.
You’ll deliver projects across infrastructure, automation, and cloud security, while acting as a technical escalation point for internal teams. You’ll work across Windows, networking, identity, cloud, and security — owning problems end to end.
What you’ll do
- Lead the day-to-day management and support of IT infrastructure services.
- Design, implement, and maintain secure, scalable, and resilient infrastructure solutions.
- Supporting our primarily Microsoft-based infrastructure, ensuring its high availability, resilience, and performance. Both hybrid cloud and on-premise environments.
- Oversee server, storage, network, backup, cloud and virtualisation platforms.
- Ensure infrastructure availability, performance, and disaster recovery readiness.
- Maintain infrastructure security standards, patching, and compliance requirements.
- Monitor, identify, investigate, and respond to security threats and vulnerabilities.
- Manage endpoint protection, firewalls, SIEM, MFA, email security, and access controls.
- Implement and maintain security standards, policies, and best practices.
- Work with third-party security providers as required.
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Leadership and Team Management
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- Lead and develop the small Infra team, strong leadership and people management skills.
What you’ll need
- A high level of experience with Microsoft technologies including Windows Server and Desktop, Active Directory, Entra, Hybrid domains, Group Policies, 365, Intune, Teams, SharePoint, NTFS etc.
- Networking - TCP/IP, VLANS, VPNs, Wi-Fi, DNS internal and Global DNS Provider management, good level of network hardware experience e.g. Cisco/Fortinet FortiGate.
- Server Virtualisation - Nutanix, Hyper-V
- Security - this role is highly focused on security with knowledge of the following
- System security hardening, vulnerability assessments and patch management.
- Policy creation and roll out
- Security Best practices across all environments
- Security Compliance - GDPR, PCI, ISO27001
- Working with external Pen Testers
- Antivirus Management - Oversight of incidents and roll out of new policies following best practices and adaptation to emerging threats.
- Cyber Security Tools - Management across Endpoints, email, networks, Incident response
- Email Security Management
- Certificate Management - installation and renewal of SSL/TLS certificates on web servers, network devices etc.
- Domain management - both internal and external
- Cloud WAF, DDoS Protection, CSP management
- Human Firewall - Have oversight on tools such as Knowbe4 for Staff Training and security awareness. Work with the Training team to roll out new procedures and material
- Ideally some understanding of MS SQL Database administration.
- Azure
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