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Security Engineer - Offensive Security

Ireland Locations💼 Full-time🗓 2026-05-20 → 2026-09-26

Core

Simulate real-world adversary tactics to uncover security risks across Stripe's financial infrastructure via penetration testing and red team operations.

Role type

Senior IC offensive security engineer (red team)

Builds

Custom offensive tooling, automation frameworks, and internal platforms for scalable security assessments

Domain

Financial services / Cybersecurity

Deliverable

production ML models | product features | dashboards & analysis | research | client delivery | infrastructure | physical/clinical work

Required skills

Penetration testing, red teaming, Python/Go programming, cloud security (AWS/GCP/Azure), adversary tradecraft, exploit development, tool automation

Preferred skills

Fintech security experience, vulnerability research, purple team operations, log analysis, AI/LLM security testing

Technologies

Burp Suite, Cobalt Strike, Mythic, Sliver, BloodHound, MITRE ATT&CK, Splunk, Databricks, PySpark, osquery

Responsibilities

Conduct penetration tests across web apps, APIs, cloud, and mobile; execute red team engagements; perform assumed-breach assessments; partner with defensive teams to validate controls; develop offensive tools and automation; produce actionable risk reports; mentor junior members

Seniority

Senior, hands-on IC

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