AI Offensive Security Tester - LLM-Enabled App Security

Euroclear; Polska; Hybrid; PLN 395,000 - 659,000; Full time

Benefits offered by this job

Competitive salary

Learning & development

International environment

Knowledge sharing

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 activities, including SAST, DAST, penetration testing and red-team exercises with human oversight.

You will prepare inputs, operate the testing environment, validate outputs and provide evidence-rich findings for remediation. Partner with AI Offensive Testing Tech Lead, offensive security specialists and platform engineers to ensure secure

Qualifications

• At least 3 years in application security, offensive security or related field.
• Hands-on knowledge of source-code analysis, SAST, DAST, web and API security testing.
• Practical experience using AI/LLM for coding, security analysis, automation or evaluation.
• Ability to assess code reachability, exploitability and remediation options.
• Experience with secure cloud/containers and handling sensitive data.

Responsibilities

• Prepare test scope, context, code, endpoints and test data for LLM-assisted assessments.
• Execute SAST, DAST, pentesting and red-team workflows within approved rules.
• Validate findings and distinguish true positives from false positives.
• Deliver reproducible, credible testing outputs with evidence across workflows.
• Document lessons learned and contribute to knowledge sharing.

Skills

Application security

Penetration testing

Offensive security

SAST

DAST

LLM usage

Python automation

Cloud/containers

Code review

Education

Bachelor's degree in CS or security

Tools

SAST tools

DAST tools

Red-team tools

CI/CD tooling

Azure

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 activities, including SAST, DAST, penetration testing and red-team exercises with human oversight.

You will prepare inputs, operate the testing environment, validate outputs and provide evidence-rich findings for remediation. Partner with AI Offensive Testing Tech Lead, offensive security specialists and platform engineers to ensure secure