AI Red Team Engineer: LLM Security & Adversarial Research

ByLabs; San Francisco (CA); On-site; USD 150,000 - 190,000; Full time

Job summary

ByLabs is seeking a skilled Red Team Security Engineer to join our SOC team in San Francisco. You will simulate adversary TTPs at the APT level to validate detection and response capabilities while researching AI/LLM security risks.

You will design end-to-end red team operations, replicate APT TTPs, develop offensive tools, and contribute to BAS playbooks across Windows, macOS, and Linux. Collaboration with blue teams and threat intel is essential.

Qualifications

• 3+ years of hands-on pentesting or red team experience.
• Proficiency with at least one mainstream C2 framework (Cobalt Strike, Sliver, Havoc).
• Strong vulnerability exploitation fundamentals: web (OWASP Top 10), internal network (AD attack chains), cloud environments.
• Familiar with MITRE ATT&CK framework; able to map TTPs and design corresponding attack scenarios
• Understanding of LLM application architectures (RAG, Agent, MCP, Tool Use) and ability to identify attack surfaces
• Hands-on research or PoC experience with Prompt Injection, jailbreaking, or model extraction attacks
• Familiar with MITRE ATLAS framework and AI/ML threat classification
• (Preferred) Holds at least one major red team certification: OSCP, CRTO, CRTE
• (Preferred) Web3 / blockchain security background (smart contract audits, on-chain attack analysis)
• (Preferred) CTF experience or published vulnerability research (CVE, conference talks, technical blog)

Responsibilities

• Design and execute end-to-end red team operations covering the full attack chain: reconnaissance, initial access, lateral movement, privilege escalation, and data exfiltration
• Replicate APT group TTPs (e.g., Lazarus, APT41) to validate detection and incident response capabilities
• Develop and maintain custom offensive tools, C2 frameworks, and evasion techniques to simulate advanced threats
• Participate in BAS (Breach and Attack Simulation) playbook design and execution across Windows, macOS, and Linux platforms
• Research AI/LLM attack surfaces: Prompt Injection, model poisoning, adversarial examples, training data contamination, and AI Agent security risks
• Evaluate security risks in AI/LLM applications (RAG, MCP, Tool Use, Agentic workflows) and provide red team findings
• Track AI security research (MITRE ATLAS, OWASP LLM Top 10) and produce internal threat intelligence
• Collaborate with the blue team to translate red team findings into detection rules and defensive hardening
• Produce high-quality red team reports with actionable remediation recommendations

Skills

Penetration testing

Red team operations

MITRE ATT&CK

AI/LLM security

Prompt injection

Jailbreak techniques

Model extraction

Threat modeling

C2 evasion

Tools

Cobalt Strike

Sliver

Havoc

Job description

ByLabs is seeking a skilled Red Team Security Engineer to join our SOC team in San Francisco. You will simulate adversary TTPs at the APT level to validate detection and response capabilities while researching AI/LLM security risks.

You will design end-to-end red team operations, replicate APT TTPs, develop offensive tools, and contribute to BAS playbooks across Windows, macOS, and Linux. Collaboration with blue teams and threat intel is essential.