Pen Tester - Red Team Location: Waterford (Mostly remote - 1 day per month onsite) Employment Type: Full-Time Are you ready to think like an adversary and simulate real-world cyber threats? We're hiring a Red Team Operator to lead offensive security assessments across enterprise environments - from cloud infrastructure to internal networks. You'll help uncover critical vulnerabilities, develop custom tools, and work directly with Blue Teams to strengthen our defenses. Key Responsibilities Plan and execute Red Team operations, including adversary emulation and full-scope attack simulations. Conduct offensive security assessments across networks, applications, cloud (AWS, Azure, GCP), and social engineering vectors. Build and maintain stealthy Command & Control (C2) infrastructure. Develop internal tools, scripts, and custom malware to support Red Team activities. Partner with Blue Teams on Purple Team exercises to test and enhance detection capabilities. Stay current on emerging threats and integrate new TTPs into operations. Deliver detailed technical reports and executive-level briefings. Qualifications 3-5 years of experience in Red Teaming, offensive security, or advanced penetration testing. Strong programming/scripting in C, C++, C#, PowerShell, Rust, or similar. Proficiency with Cobalt Strike and EDR evasion techniques. Solid understanding of Active Directory attacks, malware development, and defense bypass techniques. Strong communication skills - written and verbal. Preferred Certifications: OSCP, OSCE, SANS GXPN, CRTO, or similar. Familiarity with MITRE ATT&CK, threat emulation frameworks, and TTP development. Experience with Purple Team collaboration or threat hunting. Why Apply? This is a high-impact role where you'll challenge modern security defenses, sharpen your offensive skills, and stay ahead of adversaries. If you're passionate about Red Teaming, custom tooling, and creative exploitation - we want to hear from you. Apply now by submitting your CV via the link, or contact Seamus at Reperio for more info. Reperio Human Capital acts as an Employment Agency and an Employment Business. Skills: Penetration Testing Offensive Security Red Team