LLM-Powered AI Offensive Security Tester

Euroclear; Kraków; Hybrid; PLN 180,000 - 330,000; Full time

Benefits offered by this job

Hybrid work model

International collaboration

Learning & development opportunities

Competitive salary & benefits

Job summary

Euroclear is seeking an AI Offensive Testing Specialist within the CISO Offensive Security Tribe. You will execute and improve LLM-supported security testing, including SAST, DAST, penetration testing and red-team activities under defined scope and human oversight.

You will prepare inputs, operate the testing environment, validate outputs and produce reproducible, evidence-rich findings. Collaboration with AI Leads, security engineers and application teams is essential to strengthen

Qualifications

• 3+ years in application security, offensive security, or related fields.
• Hands-on SAST/DAST, web/API security testing, or red-team methodologies.
• Experience using LLMs or AI agents for security analysis or automation.
• Ability to assess exploitability and remediation options.

Responsibilities

• Prepare test scope, context, data and prerequisites for LLM-supported assessments.
• Execute SAST, DAST, penetration testing and red-team workflows within approved rules.
• Handle sensitive data and artifacts per security and data-handling requirements.
• Validate findings, distinguish true positives, and escalate complex cases.
• Explain findings to developers and security teams, and perform retesting.

Skills

App security

Offensive security

SAST

DAST

Pen testing

Red team

Vulnerability validation

LLM usage

Python

APIs

Cloud testing

CI/CD

Version control

Logging

Monitoring

OWASP

CWE

CVE

MITRE ATT&CK

ATLAS

Job description

Euroclear is seeking an AI Offensive Testing Specialist within the CISO Offensive Security Tribe. You will execute and improve LLM-supported security testing, including SAST, DAST, penetration testing and red-team activities under defined scope and human oversight.

You will prepare inputs, operate the testing environment, validate outputs and produce reproducible, evidence-rich findings. Collaboration with AI Leads, security engineers and application teams is essential to strengthen