Sherborne Talent Solutions
IT Security & Network Analyst
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IT Security & Network Analyst 📍 Belfast, Northern Ireland (Hybrid)
Sherborne Talent Solutions
The Role
We're looking for a hands-on IT Security & Network Analyst to join a growing IT team supporting a modern manufacturing and infrastructure environment in Belfast. You'll own the corporate network and security architecture day to day: firewalls, Active Directory, network hardware, and infrastructure troubleshooting, alongside the more familiar security operations work like threat monitoring, incident response, and vulnerability management. It's a broad, hands-on role, ideal for someone who wants to build real infrastructure and security experience side by side rather than specializing purely in one or the other.
Key Responsibilities
- Own the day-to-day administration, maintenance, and integration of the corporate network and security architecture, including firewalls, network hardware, and Active Directory
- Administer day-to-day security operations, identifying and remediating information security risks, threats, and vulnerabilities
- Investigate and respond to security incidents through technical analysis, log review, malware investigation, and packet/network activity review
- Monitor firewalls and log correlation tools for potential threats, and keep security tools (firewalls, IDS/IPS, security gateways) up to date and optimally configured
- Provide tier two support to the Service Desk, and troubleshoot infrastructure issues both remotely and on-site
- Manage user provisioning/de-provisioning and support identity and access management, messaging, endpoint protection, and remote access systems
- Contribute to the rollout, health, and support of IT security, Active Directory, web application, and remote infrastructure projects
- Research, recommend, and implement improvements to systems and network security
- Assist in developing company-wide security standards, policies, and best practices
- Produce clear documentation, incident reports, risk assessments, and reference material for the security operations environment
- Provide training on security topics as needed
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Essential
- Solid hands-on experience with Active Directory, Windows Server environments, and core networking fundamentals (TCP/IP, firewalls, segmentation)
- Experience working in an IT infrastructure or network environment, not purely cloud/M365-based security
- Strong understanding of core cyber security principles: threats, vulnerabilities, risk, and identity & access management
- Comfortable troubleshooting infrastructure issues independently, both remotely and on-site
- Strong analytical and incident-investigation skills
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Highly Valued (but not a dealbreaker if you're strong elsewhere)
- Experience with Linux environments, SCCM, or PowerShell scripting/automation
- Exposure to SIEM platforms or security monitoring tools
- Familiarity with Microsoft 365 security tools (Entra, Intune, Purview, Defender)
- Relevant certifications (Security+, CySA+, CISSP, CISA, etc.) a strong asset, not required
- Experience in a manufacturing, industrial, or OT (Operational Technology) environment
- Experience with virtual server/VDI technologies
Ideal Candidate
- Mid-level professional with genuine infrastructure/network exposure, not just security-tooling experience
- Practical, hands-on, and comfortable owning problems end to end
- Strong communicator, comfortable working across IT, infrastructure, and application teams
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