At a Glance
- Tasks: Lead and enhance IT infrastructure, ensuring security and performance across systems.
- Company: Dynamic financial services firm based in Central London with a hybrid work model.
- Benefits: Competitive salary, flexible working, and opportunities for professional growth.
- Other info: Exciting career development opportunities in a fast-paced environment.
- Why this job: Join a forward-thinking team and make a real impact on critical business systems.
- Qualifications: 7+ years in IT infrastructure, strong technical skills, and leadership experience required.
The predicted salary is between 60000 - 65000 £ per year.
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. 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.
The IT Infrastructure & Systems Manager is a full-time role based in London with a hybrid working arrangement, combining on-site presence with some work from home. This role is responsible for managing and maintaining the organization's core IT infrastructure, including servers, networks, storage, and cloud services. Day-to-day tasks include overseeing system administration, monitoring performance and availability, implementing security best practices, and coordinating backup and disaster recovery processes. The role involves leading and supporting IT operations, resolving complex technical issues, and ensuring that systems, applications, and services remain stable and secure. The IT Infrastructure & Systems Manager will collaborate with internal stakeholders, manage vendors and service providers, contribute to IT strategy and roadmaps, and document procedures, standards, and configuration changes.
Qualifications
- Strong foundation in Information Technology and IT Operations, including infrastructure design, capacity planning, and service management.
- Hands-on experience with System Administration and Troubleshooting across Windows and/or Linux environments, virtualization, and cloud platforms.
- Proficiency in Network Security, including firewalls, VPNs, endpoint protection, access control, and security monitoring.
- Proven ability to manage IT projects, prioritize tasks, and deliver improvements on time and within scope.
- Excellent communication and stakeholder management skills, with the ability to explain technical concepts to non-technical audiences.
- Experience leading or mentoring IT team members or support staff is highly desirable.
- Relevant certifications (eg, ITIL, Microsoft, Cisco, CompTIA, or cloud certifications) are an advantage.
- Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent practical experience.
- 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.
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 (eg, 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 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 (eg, Syncovery, other SFTP).
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 (eg, 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 (eg, Paxton).
Governance, Documentation & Process Improvement
- Develop, maintain, and enforce IT policies, standards, and operational procedures.
- Produce system architecture diagrams, technical documentation, SOP's, 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 (eg, 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 optimization
- Asset management
This is a hybrid role with 3 days at the office in Central London. Salary for this role will be in the range £60K - £65K.
IT Infrastructure & Systems Manager in London employer: Onyx-Conseil
As an IT Infrastructure & Systems Manager in London, you will join a dynamic and innovative team that values collaboration and professional growth. The company offers a hybrid working model, competitive salary, and a supportive work culture that encourages continuous learning and development, making it an ideal environment for those looking to advance their careers in a fast-paced financial services sector.
StudySmarter Expert Advice🤫
We think this is how you could land IT Infrastructure & Systems Manager in London
✨Join the IT Consultancy Buzz
Get involved in local or virtual IT consultancy meetups and forums. This is where we can rub shoulders with industry professionals, get insights into what Onyx-Conseil values, and even spot unadvertised opportunities. Don't miss out on these chances to make a name for ourselves in the IT world!
✨Show Off Your Skills
Create a personal project or case study relevant to the challenges Onyx-Conseil might face. Use platforms like GitHub or Medium to share your findings. This not only demonstrates our consulting skills but shows a proactive attitude, making us stand out from the crowd when applying for that full-time gig.
✨Leverage LinkedIn for Connections
Follow and engage with the relevant thought leaders and influencers in IT consultancy on LinkedIn. Share insightful content and join discussions to gain visibility. A well-placed comment or shared article could catch the attention of someone at Onyx-Conseil!
✨Direct Apply to Onyx-Conseil
Let's not forget to apply directly through the Onyx-Conseil website! Tailor your application to showcase our understanding of their consulting style and how we can contribute to their projects. A personalised approach can make a huge difference in landing that full-time position!
We think you need these skills to ace IT Infrastructure & Systems Manager in London
Some tips for your application 🫡
Showcase Your Problem-Solving Skills:In IT consulting, it's all about problem-solving, so make sure your CV highlights your analytical skills and any relevant projects you've tackled. Mention specific technologies or methodologies you've used to resolve issues or improve processes; this shows you can think critically and deliver results, which is vital for us at Onyx-Conseil.
Highlight Relevant Certifications:Certifications like ITIL, PMP, or even specific tech stack qualifications can really make you stand out. Make sure to include these in your CV, as they not only demonstrate your expertise but also your commitment to staying current in the field. We love seeing candidates who are proactive about their professional development!
Tailor Your Cover Letter:Your cover letter is your chance to connect personally with us at Onyx-Conseil. Share stories about your experiences in IT consulting, and how they shaped your desire to join our team. Mention why you’re excited about this particular role, and how you see yourself contributing to our projects.
Keep It Clear and Concise:We're all busy, so make sure your application is easy to read. Use bullet points for key achievements, and don’t overload us with jargon. A clean, professional layout goes a long way. Remember, the clearer your application, the more likely we are to invite you in for an interview!
How to prepare for a job interview at Onyx-Conseil
✨Brush Up on Your Technical Skills
For an IT consulting role, be ready to demonstrate your technical prowess. You might face questions on systems integration, cloud technologies, or even troubleshooting specific software. If you have experience with tools like AWS, Azure, or even specific programming languages, make sure you can talk about them fluently.
✨Showcase Your Problem-Solving Approach
IT consulting is all about solving problems for clients. Think about how you can illustrate your approach to a past challenge using the STAR method (Situation, Task, Action, Result). It's a great way to show how you tackle complex issues and come up with effective solutions.
✨Know the Business Impact of IT Solutions
When discussing your experiences, focus not just on the tech solutions you implemented, but also on their business impact. Employers want to see that you can connect IT with organisational goals. Prep examples that highlight how your tech contributions improved efficiency or reduced costs for past clients or projects.
✨Prepare for Behavioural Questions
Since IT consulting often involves teamwork and client interactions, expect behavioural questions that assess your interpersonal skills. Be prepared with examples that demonstrate your adaptability, communication skills, and how you handle client feedback. Before the interview, think of situations where you worked closely with clients to create effective IT strategies or changes.
