Senior IT Infrastructure & Systems Manager in London

Senior IT Infrastructure & Systems Manager in London

London Full-Time 55000 - 60000 £ / year (est.) Home office (partial)
Onyx-Conseil

At a Glance

  • Tasks: Lead and optimise IT infrastructure while ensuring security and performance of critical systems.
  • Company: Join a leading financial services firm with a focus on innovation and excellence.
  • Benefits: Competitive salary, hybrid work model, and opportunities for professional growth.
  • Other info: Exciting career progression opportunities in a collaborative team.
  • Why this job: Make a real impact in a dynamic environment while working with cutting-edge technologies.
  • Qualifications: 7+ years in IT infrastructure management, preferably in financial services.

The predicted salary is between 55000 - 60000 £ per year.

We are seeking an experienced and highly motivated Senior IT Infrastructure Manager with at least 7 to 10 years of experience 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.

Infrastructure & Systems Management

  • 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.
  • 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 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.

Enterprise Applications & Financial Systems Support

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

Networking

  • 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.

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).

Governance, Documentation & Process Improvement

  • 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 modernization, and transformation initiatives.

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)

Hardware & Storage

  • Dell PowerEdge Servers
  • Dell PowerVault SAN Storage

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 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.
  • Able to provide support to VIP stakeholders.

This is a hybrid role – 3 days in the office in Central London. Salary for this role will be in the range £55K – £60K.

Senior IT Infrastructure & Systems Manager in London employer: Onyx-Conseil

Join a dynamic and innovative team as a Senior IT Infrastructure & Systems Manager in the heart of Central London, where we prioritise employee growth and development. Our collaborative work culture fosters creativity and excellence, offering competitive salaries and comprehensive benefits that support your well-being. With a focus on cutting-edge technology and a commitment to operational excellence, this role provides a unique opportunity to lead impactful projects within a thriving financial services environment.

Onyx-Conseil

Contact Details:

Onyx-Conseil Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior IT Infrastructure & Systems Manager in London

Tip Number 1

Network, network, network! Get out there and connect with people in the industry. Attend meetups, webinars, or even just grab a coffee with someone who works in IT infrastructure. You never know who might have a lead on your next big opportunity!

Tip Number 2

Show off your skills! Create a portfolio or a personal website where you can showcase your projects, achievements, and any relevant certifications. This is a great way to stand out and give potential employers a taste of what you can bring to the table.

Tip Number 3

Prepare for interviews like a pro! Research the company and its tech stack, and be ready to discuss how your experience aligns with their needs. Practice common interview questions and think about how you can demonstrate your leadership and technical skills.

Tip Number 4

Don’t forget to apply through our website! We’ve got loads of opportunities that might be perfect for you. Plus, applying directly shows your enthusiasm and commitment to joining our team.

We think you need these skills to ace Senior IT Infrastructure & Systems Manager in London

Windows Server 2019/2022
Red Hat Linux
VMware vSphere
Veeam Backup & Replication
Symantec Endpoint Protection
Cisco switches and routers
FortiGate firewall administration

Some tips for your application 🫡

Tailor Your CV:Make sure your CV is tailored to the Senior IT Infrastructure & Systems Manager role. Highlight your experience with Windows and Linux server environments, VMware, and any relevant financial systems you've worked with. We want to see how your skills match what we're looking for!

Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you're the perfect fit for this role. Mention specific projects or achievements that demonstrate your leadership and technical expertise. Remember, we love a good story!

Showcase Your Technical Skills:In your application, don't forget to showcase your technical skills. Mention your experience with tools like Veeam, Splunk, and any cybersecurity measures you've implemented. We’re keen on seeing how you can contribute to our IT infrastructure!

Apply Through Our Website:We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any important updates. Plus, it’s super easy!

How to prepare for a job interview at Onyx-Conseil

Know Your Tech Inside Out

Make sure you brush up on your technical skills, especially around Windows and Linux server environments, VMware, and Veeam solutions. Be ready to discuss specific projects where you've optimised these systems or solved complex issues.

Showcase Your Leadership Skills

As a Senior IT Infrastructure & Systems Manager, you'll need to lead teams effectively. Prepare examples of how you've managed teams in the past, resolved conflicts, and supported stakeholders. Highlight your ability to drive operational excellence.

Understand the Business Context

Familiarise yourself with the financial services sector, particularly how IT infrastructure supports trading and treasury systems. Being able to connect your technical expertise to business outcomes will set you apart from other candidates.

Prepare for Scenario-Based Questions

Expect questions that ask how you'd handle specific situations, like a system outage or a security breach. Think through your responses ahead of time, focusing on your problem-solving approach and how you ensure compliance with IT governance.