Norton Blake
Senior IT Infrastructure Officer
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Senior IT Infrastructure Officer, 12 month FTC, £75,000 per annum, London/Hybrid
Job Purpose
We are seeking an experienced and highly motivated Senior IT Infrastructure Officer to oversee, manage, and continuously improve the organization’s IT infrastructure, enterprise systems, network environment, and end-user computing services.
The successful candidate will ensure the availability, security, performance, and resilience of critical business systems while leading technical teams and supporting key stakeholders across the organization.
This role requires a strong blend of technical expertise, leadership capability, operational excellence, and stakeholder management skills, within a complex enterprise environment that includes financial, trading, and treasury systems.
Experience Required
- 7+ years of experience in enterprise IT infrastructure and systems administration.
- Experience within financial services, banking, trading, or treasury environments.
- Proven experience managing mission-critical infrastructure and applications.
- Experience operating within regulated and security-focused environments.
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Key Responsibilities
Infrastructure & Systems Management
- Administer, maintain, and optimize Windows and Linux server environments.
- Manage VMware virtualized infrastructure (vSphere 8 and above).
- Oversee enterprise backup and disaster recovery solutions using Veeam Backup & Replication.
- Manage Veeam ONE monitoring and Veeam Recovery Orchestrator (VRO) environments.
- Administer endpoint security and encryption solutions, including Symantec Endpoint Protection (SEP) and Symantec Endpoint Encryption (SEE).
- Support endpoint DLP, SIEM, and security monitoring tools (e.g., Splunk, Tenable).
- Manage patching processes using ManageEngine Patch Manager Plus.
- Support Microsoft 365 services and related cloud technologies.
- In-depth understanding of cybersecurity.
- Monitor system performance, capacity, availability, and infrastructure health.
- Ensure compliance with IT governance, security policies, and operational standards.
End-User Computing & Branch Support
- Provide advanced desktop, laptop, printer, mobile device (iOS), and branch office IT support.
- Deliver AV support for meeting rooms, conferencing, presentations, and collaboration systems.
- Manage OS deployment, imaging, image creation, maintenance, and software packaging.
- Administer Active Directory (AD), Group Policy Objects (GPOs), and user provisioning and NTFS permissions.
- Support Microsoft 365 applications including Outlook, Teams, OneDrive, and SharePoint.
- Resolve technical incidents and service requests in line with agreed SLAs.
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Technical Skills
Operating Systems
- Windows 11
- Windows Server 2019/2022 (or equivalent enterprise environments)
- Red Hat Linux
Infrastructure & Virtualization
- VMware vSphere / vCenter (v8.0.3 and above)
- Veeam Backup & Replication
- Veeam ONE, VRO
- Microsoft Office 365
- ManageEngine Patch Manager Plus
- SAAS solutions
- SQL Server
Security
- Symantec Endpoint Protection (SEP)
- Symantec Endpoint Encryption (SEE)
- SentinelOne – EDR/XDR
- Endpoint DLP solutions
- Firewall administration
- Vulnerability management tools (e.g., Tenable)
- SIEM tools (e.g., Splunk)
Networking
- Cisco Switches and Routers
- FortiGate Firewalls
- LAN/WAN networking and routing
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