Part-Time AI Security & Threat Modeling Specialist

Jit Team; Warszawa, Gdynia; On-site; PLN 83,000 - 124,000; Part time

Job summary

Jit Team is seeking an experienced IT Security Penetration Tester to join a strategic financial services initiative in Warsaw. This part-time role (~8 hours/week) focuses on AI-related threats, threat modeling, and secure-by-design practices across AI-enabled systems and LLM-based applications.

The candidate will conduct threat modeling workshops, map threats to architectures, and collaborate with security and engineering teams to implement effective mitigations. Fluent English is required.

Qualifications

• Strong knowledge of IT Security Architecture.
• Hands-on experience with Threat Modeling for AI agents, ML systems, and LLMs.
• Deep understanding of AI-specific attack vectors and threat landscapes.
• Experience with STRIDE, Attack Trees, Cyber Kill Chains.
• Experience creating reusable threat models and libraries.
• Ability to map threats to controls, requirements and remediation actions.
• Experience conducting threat modeling workshops with cross-functional teams.
• Fluent English.

Responsibilities

• Conduct threat modeling workshops with application and platform teams.
• Perform application-level security assessments focused on AI-enabled systems, ML solutions, LLM-based applications, and related services.
• Identify assets, trust boundaries, attack surfaces, threat actors, abuse cases, threats, and security risks related to Mythos scenarios.
• Map relevant Mythos threat scenarios to business and technical architectures.
• Develop, maintain, and continuously improve threat models using approved threat modeling methodologies and tooling.
• Review solution designs, architecture documentation, and technical specifications to validate threat coverage.
• Collaborate with development, architecture, and security teams to define mitigation actions and security requirements.
• Assess security exposures and recommend appropriate controls and remediation strategies.
• Develop reusable threat models, threat libraries, and security patterns.
• Track, document, and report identified threats, risks, mitigations, and remediation status.
• Support security governance activities and contribute to secure-by-design initiatives.

Skills

IT Security Architecture

Threat Modeling (AI/ML/LLMs)

AI attack vectors

Threat modeling methodologies

Reusable threat models

Threat libraries

Security controls mapping

Threat modeling workshops

English fluency

Tools

Threat Modeling Tools

Mythos Adversary Framework

OWASP LLM Top 10

MITRE ATLAS

Job description

Jit Team is seeking an experienced IT Security Penetration Tester to join a strategic financial services initiative in Warsaw. This part-time role (~8 hours/week) focuses on AI-related threats, threat modeling, and secure-by-design practices across AI-enabled systems and LLM-based applications.

The candidate will conduct threat modeling workshops, map threats to architectures, and collaborate with security and engineering teams to implement effective mitigations. Fluent English is required.