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Nebius is a Nasdaq-listed AI cloud infrastructure company headquartered in Amsterdam with global R&D hubs across Europe, North America, and Israel. The company builds a full-stack AI cloud platform supporting developers and enterprises from data and model training through production deployment, with a team of 1,500+ engineers.
You will lead the Fraud & Insider Threat function within the Cyber Security organization, reporting to the Head of Detection & Response under the CISO. This is a people-management role responsible for protecting Nebius, its employees, executives, customers, and brand from fraud-driven attacks and insider risks.
Key responsibilities include:
- Leading and managing the Fraud & Insider Threat team with mentoring, prioritization, and professional development
- Defining and executing the organization's fraud prevention and insider threat strategy, processes, and operational playbooks
- Overseeing investigations involving Business Email Compromise (BEC), executive impersonation, phishing campaigns, social engineering, financial fraud, and insider threat activities
- Leading monitoring and response efforts for fraud targeting executives, employees, customers, and the Nebius brand
- Investigating fraudulent domains, social media impersonation, fake websites, fraudulent mobile applications, and brand abuse
- Coordinating takedown efforts with external providers, registrars, social media platforms, and law enforcement
- Developing fraud detection capabilities leveraging threat intelligence, telemetry, and fraud monitoring tools
- Collaborating with SOC and Threat Intelligence teams to identify emerging fraud campaigns and evolving attacker techniques
- Partnering with HR, Legal, Finance, Communications, and IT teams on insider threat and fraud incident investigations
- Producing intelligence reports, risk assessments, and executive briefings on fraud trends and organizational exposure
- Defining KPIs and continuously improving fraud detection, investigation, and response processes
- Driving awareness programs to educate employees and executives on phishing, social engineering, and insider threat risks
REQUIREMENTS:
- 5+ years of experience in cyber security, fraud investigations, digital investigations, cyber intelligence, or incident response
- 2+ years of experience leading technical or investigative teams
- Strong understanding of Business Email Compromise (BEC), phishing, executive impersonation, social engineering, and financial fraud techniques
- Experience investigating cyber-enabled fraud, insider threats, and digital abuse incidents
- Familiarity with email security, identity systems, and enterprise collaboration platforms
- Experience working with threat intelligence, OSINT, and digital investigation tools
- Strong analytical, investigative, and problem-solving skills
- Experience working cross-functionally with Security, HR, Legal, Finance, IT, and executive leadership
- Excellent written and verbal communication skills in Hebrew and English
BONUS QUALIFICATIONS:
- Experience with brand protection, digital risk protection (DRP), or external attack surface monitoring platforms
- Familiarity with dark web monitoring, OSINT investigations, and threat intelligence platforms
- Experience working with law enforcement or external fraud investigation organizations
- Knowledge of insider threat methodologies and user behavior analytics (UBA/UEBA)
- Experience in SaaS, cloud-native, or enterprise environments
- Relevant certifications such as CFE (Certified Fraud Examiner), GCFA, GCTI, CISSP, or equivalent
- BSc in Computer Science, Information Security, Criminology, Intelligence, or a related field
