Senior IT Infrastructure Manager
We are seeking an experienced and highly motivated Senior IT Infrastructure Manager with at least 7 to 10 years experience to oversee, manage, and continuously improve the organization's IT infrastructure, enterprise systems, network environment, and end‑user computing services.
Responsibilities
- Administer, maintain, and optimise Windows and Linux server environments.
- Manage VMware virtualised 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.
- Understand and apply Cyber‑security best practices across the environment.
- Monitor system performance, capacity, availability, and infrastructure health.
- Ensure compliance with IT governance, security policies, and operational standards.
- 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, including NTFS permissions.
- Support Microsoft 365 applications including Outlook, Teams, OneDrive and SharePoint.
- Resolve technical incidents and service requests in line with agreed SLAs.
- Support and administer business‑critical applications such as Bloomberg FXT, Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS and COP.
- Support enterprise file synchronization and replication solutions (e.g., Syncovery, other SFTP).
- Configure and support Cisco switches and routers.
- Administer FortiGate firewall environments.
- Apply strong network fundamentals (DNS, DHCP, TCP/IP, LAN/WAN, routing and connectivity troubleshooting).
- Monitor network performance, availability, and security posture.
- Support vulnerability management using tools such as Tenable.
- Manage security monitoring and log analysis tools (e.g., Splunk).
- Perform SSL/TLS certificate lifecycle management using OpenSSL, including creation of CSRs, certificate chains and private keys.
- Ensure adherence to cybersecurity policies, standards and regulatory requirements.
- Support physical access control systems (e.g., Paxton).
- Develop, maintain and enforce IT policies, standards and operational procedures.
- Produce system architecture diagrams, technical documentation, SOPs and performance reports.
- Identify and drive opportunities for automation and service improvement.
- Support technology planning, infrastructure modernisation and transformation initiatives.
Technical Competencies
- Data analysis and operational reporting
- Desktop and laptop support
- Infrastructure monitoring and performance management
- Certificate lifecycle management (SSL/TLS)
- Windows imaging and deployment, GPO, NTFS
- PowerShell scripting
- SQL Server administration
- Understanding of the software development lifecycle (SDLC) and deployment processes
- Architecture review and systems optimisation
- Asset management
Qualifications
- 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.
- Ability to provide support to VIP stakeholders.
- Strong blend of technical expertise, leadership capability, operational excellence and stakeholder management skills.
Location & Compensation
Hybrid role – 3 days in the office in Central London. Salary range £55,000 – £60,000.
