Job Title
Infrastructure / IT Security specialist – Enterprise client (major O365 and security projects on a global scale)
Key Information
* Salary: up to £65,000
* Education: Degree preferred or commercial exposure (none required)
* Experience: 5+ years
* Industry: Technology
* Location: Horsforth, Leeds
* Work Hours: 37.5 hours per week
Benefits
* 23 days holiday (rising with years of service) & 5 optional additional days
* Pension: 2.5% salary match, plus optional voluntary contributions
* Life assurance
* Group income protection plan (optional health assurance)
* Personal accident scheme
* Free car parking
* Monthly socials, expenses covered, Christmas party, Summer BBQ
Requirements
* Education: ideally a degree; commercial experience a must
* Experience: Office 365 at intermediate to advanced level
* Industry: any accepted; preferably professional services
* Job Location: Leeds LS1 4AP
* Qualifications: none required
* Work Hours: 37.5 hours per week
Skills
* Excellent knowledge of Windows Servers, Active Directory, Email Platforms, Anti‑Virus Systems, Networking, and VM environments
* Extensive knowledge of IP networks and multi‑platform server environments
* Experience maintaining Exchange 2013, SQL Server, Symantec Enterprise Protection, and Backup Exec
* Infrastructure best practices
* Understanding of ITIL
Principal Duties, Responsibilities & Accountabilities
Responsibilities
* Support and monitor existing infrastructure, perform preventative maintenance, backup, and other support tasks to maintain effectiveness and provide cover as needed.
* Plan, manage, and implement infrastructure projects and upgrades to meet company objectives.
* Respond to 2nd/3rd line Help Desk calls and manage 3rd line work requests through to resolution or escalation.
* Ensure security of data and IT systems, and educate staff on secure working practices.
* Collaborate with leaders and stakeholders to integrate newly acquired businesses such as mergers / acquisitions.
* Coordinate with external suppliers for ongoing support and maintenance of hardware, networks, and software.
* Ensure all work and changes minimize disruption to business use and participate in change management.
* Maintain infrastructure asset records and design/document processes, procedures, and standards.
* Keep users updated on progress and liaise regarding escalated issues, establishing appropriate priorities.
* Ensure technology is managed and supported in accordance with standards, policies, and procedures.
* Establish guidelines and document processes for networked applications across the business.
* Collaborate with the Global IT team on global initiatives and roll‑outs.
* Assist with office moves, changes, provisioning new systems, and troubleshooting arising issues.
* Note that duties may vary and change due to the nature of the IT environment.
Network
* Support and monitor internal networks and links to regional offices, other sites, or the Internet, ensuring proper configuration and operation.
* Maintain and manage company firewalls.
* Manage wired and wireless networks, including problem resolution and change requests.
* Support physical security systems under IT team responsibility.
* Collaborate with the infrastructure team to continuously improve global infrastructure to meet business needs.
Servers
* Regularly check logs and servers to ensure proper patching and address issues.
* Test and roll out updates, especially security updates.
* Ensure adequate backups are maintained both on‑site and off‑site, and routinely test backup and restore procedures.
Core Technical Experience
* Hands‑on IT infrastructure specialist with 3+ years of experience.
* Excellent IP network skills, including switches, wireless, routing protocols, and VoIP; Cisco experience an advantage.
* Experience with SQL Server or SharePoint, Windows Server 2008/2012, Remote Desktop Services, Active Directory in corporate environments.
* Knowledge of email systems, mail domain delivery routing.
* Hands‑on experience on LAN, WAN, VPN, and HP technologies.
* Experience managing core IT applications: email, anti‑virus, systems management, software deployment, user provisioning, patch management.
* Experience managing enterprise‑level email systems.
* Project management experience in IT projects and integration projects covering email, file access, domain membership, and user migration.
* Strong IT security knowledge, including firewalls, IDS/IPS, Active Directory, DNS, file sharing, and web server configuration.
* Experience in virtualised environments (VMware), SAN technologies, and web technologies such as IIS, .NET, SSL‑VPN, token authentication.
* Working knowledge of firewall and security technologies.
IT Security (Additional Responsibilities)
* Develop/enhance security policies, processes, procedures, and technical controls.
* Identify security risks, mitigations, and opportunities to strengthen resilience.
* Participate in design and implementation of compliant systems and applications.
* Assist with security incident management and response.
* Collaborate with IT team on technical issue resolution, deployment best practices, and adoption processes.
* Maintain Microsoft 365 security solutions (Azure Information Protection, DLP, Rights Management, Cloud App Security).
* Implement information classification, data loss prevention, and information asset registers.
* Provide technical guidance for Microsoft Cloud Security solutions (OneDrive, Teams, Outlook).
* Analyze information security risk and non‑compliance issues.
* Monitor, enhance, and report on security posture with dashboards and management information.
* Leverage cyber threat intelligence for proactive risk mitigation.
Additional Security Skills
* Develop and enhance security policies, processes, and technical controls.
* Proactively identify and mitigate security risks.
* Participate in secure design and implementation of systems.
* Assist with incident management and response.
* Share technical resolution knowledge and best practices.
* Manage Microsoft MFA and endpoint security.
* Maintain Thycotic PAM environment.
* Maintain IT risk register.
* Analyze risk and non‑compliance.
* Review system audit logs and ensure mitigation.
* Test disaster recovery plans.
* Develop and test business continuity plans.
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