Senior Cyber Use Case Developer (Cybersecurity)

Location: Waterford, Ireland

Salary: €62,200–€93,300 per year, plus eligibility for a discretionary annual incentive award.

Company

hirify.global provides financial security and health-related services to individuals, families, and communities.

What you will do

• Lead the design, development, testing, tuning, and lifecycle management of detection use cases across SIEM, EDR, XDR, cloud, identity, network, endpoint, and application telemetry.
• Translate threat intelligence, adversary behaviours, incident learnings, and business risks into scalable detection logic aligned with MITRE ATT&CK and other security frameworks.
• Assess telemetry coverage, data quality, parsing, normalization, and logging gaps, partnering with engineering teams to improve detection readiness.
• Drive alert-quality improvements through enrichment, suppression logic, threshold refinement, and structured false-positive reduction.
• Support purple-team, attack-simulation, breach-and-attack-emulation, tabletop, and control-validation exercises.
• Measure detection performance and mentor team members through peer reviews, technical training, documentation, and continuous improvement.

Requirements

• At least 5 years of experience in security operations, detection engineering, threat hunting, incident response, cyber threat intelligence, security engineering, or a related cybersecurity function.
• Degree or equivalent practical experience in cybersecurity, information technology, computer science, information systems, engineering, or a related field.
• Hands-on enterprise experience with SIEM content engineering, alert tuning, detection use case development, and lifecycle management.
• Advanced experience with SIEM, EDR, XDR, cloud security, identity, network, endpoint, and application telemetry.
• Proficiency with detection and query languages such as SPL, KQL, SQL, Sigma, YARA, Python, PowerShell, or regular expressions.
• Strong knowledge of attacker behaviours, malware techniques, identity-based attacks, MITRE ATT&CK, NIST, CIS Controls, and threat-informed defence.

Nice to have

• Certifications such as CompTIA CySA+, GIAC certifications, CISSP, Microsoft Security, Splunk, cloud security certifications, or MITRE ATT&CK Defender.

Culture & Benefits

• Work with colleagues and leaders who support professional growth, knowledge sharing, and continuous improvement.
• Base salary is accompanied by eligibility for a discretionary annual incentive award based on individual and business performance.
• Commitment to pay transparency and equitable compensation.