Senior Red Team Operator — Hybrid Adversary Emulation

Stelfox Limited; Waterford; Hybrid; EUR 70,000 - 95,000; Full time

Job summary

Stelfox Limited in Waterford is seeking a Senior Red Team Operator to lead offensive security assessments and emulate adversaries across networks, apps and cloud environments.

You will develop custom tools, perform simulations, and contribute to Purple Team activities while researching emerging threats and techniques. Ideal candidates have 5+ years in offensive security and strong reporting skills.

Qualifications

• 5+ years in offensive security or penetration testing.
• Strong technical expertise across networks, applications and cloud environments.
• Experience with Red Team tooling, Active Directory exploitation and security research.
• Excellent communication and reporting skills.

Responsibilities

• Lead Red Team assessments and adversary simulations.
• Conduct network, web, mobile, and social engineering testing.
• Develop custom tools, scripts, and automation solutions.
• Support Purple Team exercises and detection validation.
• Research emerging threats and offensive security techniques.

Skills

Offensive security

Penetration testing

Network security

Cloud security

Red Team tooling

Active Directory

Security research

Communication

Reporting

Certifications

Job description

Stelfox Limited in Waterford is seeking a Senior Red Team Operator to lead offensive security assessments and emulate adversaries across networks, apps and cloud environments.

You will develop custom tools, perform simulations, and contribute to Purple Team activities while researching emerging threats and techniques. Ideal candidates have 5+ years in offensive security and strong reporting skills.