Senior IT Infrastructure Officer

  • Job Reference: NJ0593
  • Date Posted: 24 June 2026
  • Recruiter: Nexus Jobs Limited
  • Location: London
  • Remote Working: Some remote working possible
  • Salary: £70,000 to £75,000
  • Sector: I.T. & Communications
  • Job Type: Permanent
  • Duration: 12 months FTC
  • Work Hours: Full Time
  • Contact: Jas Gujral
  • Email: cv@nexusjobs.com
  • Telephone: 020 7488 6900
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Job Description

Senior IT Infrastructure Officer

Our Client a bank, in Central London are looking for an experienced IT Infrastructure professional who is ideally looking for their next challenge in a dynamic and regulated financial services environment.

We are seeking a highly skilled Senior IT Infrastructure Officer to lead the management, security, and continuous improvement of our enterprise IT infrastructure.

The Senior IT Infrastructure Officer will be playing a key role in ensuring the availability, resilience, and performance of critical systems while supporting technologies across servers, networks, cloud services, cybersecurity, and business-critical financial applications.

The candidate must have strong technical expertise in Windows/Linux, VMware, Microsoft 365, networking, cybersecurity, and infrastructure management who also enjoys solving complex challenges and driving operational excellence.

Must have 7 years' experience in enterprise infrastructure, ideally within banking or financial services, and be passionate about delivering secure, reliable IT services..

 The role will be Monday to Friday, 9:30am to 5:30pm and reporting into the Head of IT & Data. Due to the nature of the role, the individual is expected to work in our offices, 5 days per week,  during their probationary period

 

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 Cyber security
  • 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.

     

    3. Enterprise Applications & Financial Systems Support

  • Support and administer business-critical applications, including:
  • Bloomberg FXT and Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS, COP
  • Support enterprise file synchronization and replication solutions (e.g., Syncovery, other SFTP).

     

    4. Networking

    •             Configure and support Cisco switches and routers.

    •             Administer FortiGate firewall environments.

    •             Strong network fundamentals: DNS, DHCP, TCP/IP, LAN/WAN, Routing and connectivity troubleshooting.

    Monitor network performance, availability, and security posture.

    Security & Endpoint Management

  • 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.
  • Create and manage CSRs, certificate chains, and private keys.
  • Ensure adherence to cybersecurity policies, standards, and regulatory requirements.
  • Support physical access control systems (e.g., Paxton)

     

    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

     

    Hardware & Storage

  • Dell PowerEdge Servers
  • Dell PowerVault SAN Storage

 

Education

Bachelor or Master’s degree or professional qualification in relevant  discipline (IT/Information Systems/Computer  Science/Technology/Programming/Information Science/System Engineering/Computing)

 

The role is based in Central London and initally will be be 5 days per week in the office.

This is a 12 month FTC position.

The salary for the role will be circa £70K - £75K.

Do send your CV to us in Word format along with your salary and availability.