Cyber Security Analyst

Senior Cyber Defence Analyst

SOC Escalations | Threat Hunting | Detection Engineering | Dublin City Centre

About Dunnes Stores

Dunnes Stores is Ireland’s leading retailer across food, fashion and home. With over 130 stores and continued investment in digital and operational transformation, technology plays a central role in how we serve customers.

From Scan & Go and intelligent digital displays to modern cloud infrastructure, we are building a retail environment powered by secure, resilient systems.

Our Cyber Defence function is central to that mission.

The Opportunity

We are hiring a Senior Cyber Defence Analyst to act as a key escalation point within our SOC and to strengthen detection, vulnerability management and cyber engineering capability across the organisation.

This is not a monitoring-only role.

You will:

• Lead complex incident investigations
• Design and validate detection use cases
• Drive vulnerability and attack surface management
• Mentor junior analysts
• Contribute to wider cybersecurity initiatives across IT

The role is based at our Head Office in Dublin city centre and reports to the Senior Manager Cyber Defence.

What You’ll Be Responsible For

• Acting as escalation point for SIEM investigations and root cause analysis
• Planning and executing threat hunts using retail-focused intelligence
• Owning and improving enterprise vulnerability management coverage
• Overseeing external attack surface management and remediation
• Designing and validating new detection use cases
• Conducting cloud security posture reviews
• Supporting purple team and controls testing initiatives
• Providing leadership cover when required

What We’re Looking For

• 5+ years’ experience in cybersecurity, ideally in SOC or incident response
• Strong experience across SIEM, EDR, vulnerability management and cloud security
• Deep understanding of Windows, Linux, AD, networking and cloud environments
• Hands-on experience in incident response and forensic investigation
• Familiarity with MITRE ATT&CK, NIST and PCI DSS
• Certifications such as CISSP, GIAC, CEH, OSCP or similar
• Ability to translate technical risk into business impact

Why Join Dunnes Stores

• Competitive salary
• Comprehensive benefits including employee discount
• Clear opportunity to influence and shape a growing Cyber Defence function
• A collaborative environment focused on continuous improvement

Full details are available via the Apply button.