Description
We're hiring an Offensive Security Lead to build and run Nebius' red team capability. You'll design and execute adversarial simulations across our cloud platform, attacking the same infrastructure our customers depend on, and translate findings into measurable security improvements.
Responsibilities
- Build and lead a red team function within Product Security Team, hiring and developing offensive security engineers.
- Validate and extend early-stage Secure SDLC threat models via continuous penetration testing, assessing threat severity and mitigation status while challenging assumptions made during threat modeling and system development.
- Plan and execute full-scoped red team engagements against Nebius cloud platform, including compute, storage, inference, networking, orchestration layers, and internal tooling.
- Research novel attacks against GPU infrastructure, the inference stack, and AI platform managed services.
- Conduct targeted assessments of new products and infrastructure changes before they ship.
- Deliver clear, actionable reports for both technical audiences and leadership.
- Establish red team processes, tooling, and a methodology that scales as the platform grows.
Requirements
- 6+ years in offensive security, penetration testing, red teaming, or adversary simulation.
- At least 1-2 years leading or mentoring a team.
- Deep experience attacking cloud-native environments.
- Strong fundamentals across the attack lifecycle.
- Proficiency developing custom tooling and post-exploitation capabilities.
- Experience running purple team exercises and working constructively with blue teams.
Nice to Have
- Experience attacking ML infrastructure, model serving pipelines, or GPU clusters.
- Reverse engineering and exploits development experience.
- Application security experience.
- Familiarity with eBPF bypass techniques or kernel-level exploitation.
- Background in vulnerability research or CVE discovery.
Benefits & Perks
- Competitive compensation.
- Career growth and learning opportunities.
- Flexibility and ownership.
- Collaborative and innovative culture.
- Opportunity to work on impactful AI projects.
- International environment and talented teams.