Remote Offensive Security Lead - Red Team for AI Cloud

Nebius; United States; On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Competitive compensation

Equity

Remote-friendly

Job summary

Nebius is hiring an Offensive Security Lead to build and run Nebius' red team capability. You'll design and execute adversarial simulation across our cloud platform, attacking the same infrastructure our customers depend on, and translate findings into measurable security improvements.

This is a hands-on leadership role within the Product Security Team. You will build an internal red team, establish a penetration testing program, and conduct research to uncover sophisticated attack scenarios

Qualifications

• 6+ years in offensive security with leadership/mentoring experience.
• Deep experience attacking cloud-native environments including Kubernetes, IAM, virtualization and container escapes.
• Strong attack lifecycle knowledge: initial access, persistence, lateral movement, data exfiltration.
• Proficiency in developing custom tooling and post-exploitation capabilities (Python, Go).
• Experience running purple team exercises and working with blue teams.
• Ability to write clear, senior-level risk-based reports for engineers and leadership.

Responsibilities

• Build and lead a red team function within the Product Security Team, hiring and developing offensive security engineers.
• Validate and extend Secure SDLC threat models via continuous penetration testing, automating routine validations when possible.
• Plan and execute full-scoped red team engagements against Nebius cloud platform across compute, storage, inference, networking, and orchestration layers.
• Identify threats that can impact operations and collaborate with Detection & Response teams to close gaps.
• Research novel attacks against GPU infrastructure, the inference stack, and AI platform services to test tenant isolation.
• Deliver clear reports with prioritized findings and remediation guidance for technical and leadership audiences.
• Establish red team processes and tooling that scale with platform growth.

Skills

Offensive security experience

Cloud security

Red teaming

Kubernetes security

Python / Go tooling

Purple team collaboration

Security reporting

Job description

Nebius is hiring an Offensive Security Lead to build and run Nebius' red team capability. You'll design and execute adversarial simulation across our cloud platform, attacking the same infrastructure our customers depend on, and translate findings into measurable security improvements.

This is a hands-on leadership role within the Product Security Team. You will build an internal red team, establish a penetration testing program, and conduct research to uncover sophisticated attack scenarios