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Cyber Security Experts

📍 Canada

Technology Mercor

Job Description

Mercor is recruiting on behalf of a cutting-edge AI research lab building advanced AI systems for cybersecurity applications. We are seeking senior cybersecurity professionals with deep hands-on experience across both

defensive (Blue Team)

and

offensive (Red Team)

security disciplines. In this role, you will apply real-world adversarial and defensive expertise to evaluate, stress-test, and improve AI models designed to assist with threat detection, incident response, and attack simulation. Your insights will directly inform how AI systems reason about attacks, evasions, detection logic, and response workflows. This is a flexible, remote engagement ideal for experienced practitioners who have operated in enterprise, consulting, or high-security environments. Key Responsibilities Defensive (Blue Team) Contributions Investigate and analyse real or simulated security incidents (e.g., phishing, lateral movement, ransomware, privilege escalation).

Review logs and telemetry from SIEM, EDR/XDR, firewall, cloud, and identity systems.

Apply frameworks such as

MITRE ATTACK

to classify adversary behavior.

Evaluate alert quality, detection rules, triage decisions, and response workflows.

Assess AI-generated investigations for technical correctness and operational realism.

Offensive (Red Team) Contributions Analyse attack chains including initial access, persistence, privilege escalation, lateral movement, and data exfiltration.

Simulate adversarial thinking to evaluate detection gaps and bypass techniques.

Review exploit techniques, payload behaviors, and evasion strategies.

Provide insights into attack surface analysis and real-world adversary tactics.

Stress-test AI systems against realistic red-team scenarios.

AI Evaluation & Feedback Provide structured reasoning explaining investigative and adversarial decisions.

Identify weaknesses in AI threat analysis and suggest improvements.

Help refine benchmarks for detection, triage, and attack simulation accuracy.

Requirements Experience 5+ years in cybersecurity with experience in one or more of: SOC Analyst (Level II/III)

Incident Responder

Detection Engineer

Threat Hunter

Red Team Operator / Penetration Tester

Security Consultant (Offensive Security)

Hands-on experience conducting or responding to real-world security incidents.

Technical Skills – Blue Team Strong experience with: SIEM platforms (Splunk, Sentinel, QRadar, Elastic)

EDR/XDR tools (CrowdStrike, Defender, Carbon Black)

Log analysis and event correlation

Network traffic analysis (Wireshark, Zeek, tcpdump)

Cloud security and IAM investigation experience preferred.

Familiarity with MITRE ATT&CK mapping and detection engineering.

Technical Skills – Red Team Experience with: Penetration testing methodologies

Adversary emulation and attack simulation

Exploitation frameworks (e.g., Metasploit, Cobalt Strike or equivalents)

Privilege escalation techniques

Lateral movement techniques

Evasion and obfuscation methods

Understanding of Active Directory attacks, phishing frameworks, and payload development is a plus.

Analytical & Communication Skills Strong written documentation skills explaining technical reasoning.

Ability to think from both attacker and defender perspectives.

Structured, logical analysis of complex security scenarios.

Preferred Qualifications Certifications such as: OSCP, OSEP, CRTO (Red Team)

GCIA, GCFA, GCIH (Blue Team)

CISSP

Experience mentoring junior analysts or red team members.

Scripting proficiency (Python, PowerShell, Bash).

Why Join Contribute to next-generation AI systems for cybersecurity.

Work at the intersection of offensive and defensive security research.

High-impact role shaping AI reasoning about real-world cyber threats.

Flexible engagement suited for senior practitioners.

Collaborate with leading AI researchers and security experts.

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Job Details

Posted Date: March 15, 2026
Job Type: Technology
Location: Canada
Company: Mercor

Ready to Apply?

Don't miss this opportunity! Apply now and join our team.