Senior Security Analyst

Location: Ireland (Various) – Dublin or Waterford | Position: Full Time | Hybrid: Yes

About the Role

HCS is currently seeking an experienced Senior Monitoring Analyst to join our Ireland-based 24×7 operations team, supporting our proactive monitoring and managed services offering.

This is a hands‑on, technical role focused on real‑time monitoring, alert triage, proactive remediation, and escalation across customer environments. You will play a key role in preventing service disruption by identifying issues early, resolving them quickly, and ensuring effective handover to resolver teams where required.

This role operates as part of a 24×7 rota and is based in Ireland, supporting customers around the clock and ensuring consistent service quality.

Key Responsibilities

• Provide continuous monitoring of customer environments across servers, endpoints, network devices, Microsoft Azure and 365 services.
• Triage alerts from monitoring and RMM platforms, distinguishing between events, incidents, and false positives.
• Prioritise and respond to alerts in line with severity, impact, and SLA.
• Ensure accurate ticket logging, categorisation, and documentation in the service management platform.
• Perform first and second‑line investigation as well as remediation of monitoring alerts.
• Resolve common issues such as:
• Disk space and resource exhaustion
• Service and agent failures
• Performance degradation
• Escalate incidents to Infrastructure, Network, Security, or Service Desk teams with clear diagnostics and context.
• Assisting the patching team with out-of-hours patching
• Monitor and manage backup‑related alerts and tickets

Essential Experience

• Proven experience in a 24×7 NOC, monitoring, or IT operations role.
• Strong understanding of ITIL practices, particularly Event Management and Incident Management.
• Hands‑on experience with monitoring and RMM platforms (e.g. N‑able or similar).
• Solid technical knowledge of:
• Windows servers and endpoints
• Core infrastructure concepts (CPU, memory, disk, services)
• Microsoft 365 service health and availability
• Comfortable working in a 24×7 shift‑based environment.

Desirable Experience

• Experience with automated remediation or scripting in monitoring environments.
• Exposure to security‑related alerts (AV/EDR health, failed logins, agent checks).
• Background in an MSP or SLA‑driven managed services environment.
• Experience managing Fortinet fabric.
• ITIL Foundation certification or equivalent.
• Relevant industry certifications (AZ104, VCP, NSE4 etc)

Key Attributes

• Calm, methodical, and decisive under pressure.
• Strong analytical and troubleshooting skills.
• High attention to detail and strong sense of ownership.
• Clear communicator, particularly during escalations and shift handovers.
• Proactive mindset with a focus on service quality and continuous improvement.

HCS Benefits Package

At HCS, we value our employees and offer a comprehensive benefits package to support their well-being and professional growth. Our benefits include:

• HCS Pension Scheme - competitive retirement savings plans with company matching contributions.
• Aviva Care - Access to Health & Wellness Support – Anytime, Anywhere
• Paid Time Off: Generous paid time off policies, including vacation, sick leave, and holidays.
• Professional Development: Opportunities for continuous learning and development, including access to training programs and certifications.
• Work-Life Balance: Flexible work arrangements to support a healthy work-life balance.
• Death in Service – in the unlikely event of your death, a lump sum of 4 × your annual salary will be paid to your nominated beneficiary