Network Infrastructure Security Manager – HYBRID WORKING – 10941HS

Proactive.IT Appointments Limited; London; On-site; GBP 85,000 - 110,000; Full time

Job summary

A leading IT consultancy in London is seeking a Network Infrastructure Security Manager to lead IT operations and enhance cybersecurity. The ideal candidate will have over 10 years of experience in infrastructure and security management. Responsibilities include implementing cybersecurity best practices and managing compliance with regulations like GDPR. This role offers a hybrid working arrangement with competitive benefits.

Qualifications

• 10+ years of hands-on IT infrastructure and security management experience.
• Experience in enterprise scale organisations.
• Hands-on experience in system troubleshooting and patching.

Responsibilities

• Implement and enforce cybersecurity best practices.
• Administer firewalls, VPNs, and endpoint security solutions.
• Lead security aspects of IT projects and upgrades.

Skills

Cybersecurity best practices

Network and infrastructure management

Leadership

Incident response planning

Regulatory compliance (GDPR)

Tools

Nessus

Microsoft Azure

VMware ESXi

AWS

Proxmox

Job description

Overview

Network Infrastructure Security Manager – HYBRID WORKING

Position Summary:

We are seeking an experienced Infrastructure/Security Manager to lead our IT operations and cybersecurity initiatives. The ideal candidate will have a strong technical background, with the ability to combine hands-on technical expertise with leadership capabilities. Responsible for driving company IT security, and stability of all IT systems and services.

Responsibilities

• Implement and enforce cybersecurity best practices (ISO 27001, CE+, CIS benchmarks), including endpoint protection, vulnerability scanning, penetration testing, and incident response planning.
• Ensure compliance with regulatory standards such as GDPR
• Ensure best security practice for Office 365, Exchange Online, and SharePoint administration.
• Administer firewalls, VPNs, and endpoint security solutions, ensuring zero-trust security models.
• Lead security aspects of IT projects, network upgrades, and enterprise application deployments.
• Lead in deployment and management of backups, disaster recovery (DR) plans, and business continuity strategies.
• Evaluate, propose, and implement tools and automation solutions to streamline security related operations.
• Prepare detailed technical documentation for systems (both proposed and implemented), security processes, and user training.

Technical Skills and Experience

• 10+ years of hands-on IT infrastructure and security management.
• Long held experience of working within an enterprise scale organisation.
• Hand on experience of regular systems troubleshooting, patching, and updating.
• Must be skilled at investigating and remediating reported vulnerabilities, and a have proactive approach to solutions.
• Deep understanding of cybersecurity frameworks and tools (EDR, SIEM, MFA, PKI, DLP).
• Nessus VAPT reporting and remediation
• Strong expertise in:
  • Microsoft technologies (Windows Server, Azure Active Directory)
  • Virtualization platforms (VMware ESXi, Proxmox)
  • Networking including Layer 2/3 switching, routing, VLANs, VPNs.
  • Cloud environments (IBM Cloud,AWS, Azure) – deployments and architecture.
• Proficient in backup and disaster recovery technologies.
• Supporting end users

Certifications (Preferred)

• Microsoft Certified Professional
• AWS Certified Solutions Architect – Associate/Professional
• VMware Certified Professional (VCP)

Due to the volume of applications received for positions, it will not be possible to respond to all applications and only applicants who are considered suitable for interview will be contacted.

Proactive Appointments Limited operates as an employment agency and employment business and is an equal opportunities organisation

We take our obligations to protect your personal data very seriously. Any information provided to us will be processed as detailed in our Privacy Notice, a copy of which can be found on our website http://proactive.it/privacy-notice/