Offensive Security Engineer

Job not on LinkedIn

🔥 1 hour ago

🇪🇺 Europe – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

👮‍♂️ Cybersecurity / Security Engineer

👻 Ghost score 25%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Nebius Group

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

🤖 Artificial Intelligence

🏢 Enterprise

☁️ SaaS

Artificial Intelligence • Enterprise • SaaS

Nebius Group is building one of the world’s leading AI infrastructure companies, focusing on providing the necessary compute, storage, and tools for developers in the AI space. Based in Europe and listed on Nasdaq, Nebius has a global presence with R&D centers across Europe, North America, and Israel. The company's primary offering is an AI-centric cloud platform designed for intensive AI workloads, complemented by various other businesses involved in generative AI development, edtech, and autonomous technology.

📋 Description

• Validate and extend Secure SDLC threat models through continuous penetration testing • Assess threat severity and mitigation status, challenge threat-modeling and system-development assumptions, and automate routine validations • Plan and execute full-scoped red team engagements against compute, storage, inference, networking, orchestration, and internal tooling layers • Identify threats impacting organizational operations • Collaborate with Detection & Response and security engineering teams on purple team exercises, detection coverage, and gap closure • Research novel attacks against GPU infrastructure, inference stacks, AI platform managed services, and tenant-isolation boundaries • Conduct targeted assessments of new products and infrastructure changes before release • Deliver actionable reports with prioritized findings and remediation guidance for technical and leadership audiences • Establish scalable red team processes, tooling, and methodology

🎯 Requirements

• 6+ years in offensive security — penetration testing, red teaming, or adversary simulation • Deep experience attacking cloud-native environments: Kubernetes privilege escalation, cloud IAM abuse, virtualization and container escapes • Strong fundamentals across the attack lifecycle: initial access, persistence, lateral movement, and data exfiltration • Proficiency developing custom tooling and post-exploitation capabilities using Python, Go, or similar • Experience running purple team exercises and working constructively with blue teams • Ability to write clear, senior-level reports with business-contextualized risk that engineers can easily use • Applicants must be authorized to work in the country in which they apply and provide proof of employment eligibility as a condition of hire

🏖️ Benefits

• Competitive compensation • Equity upside in a Nasdaq-listed, high-growth company • Career growth and learning opportunities • Flexibility and ownership • Flexible, remote-first culture • Collaborative and innovative culture • Opportunity to work on impactful AI projects • International environment and talented teams