TL;DR

Senior Security Researcher (AI): Identifying novel vulnerabilities and threats in Generative AI and large language model (LLM) technologies with an accent on developing proof-of-concept attacks and adversarial techniques. Focus on translating findings into actionable detection content, product improvements, and engineering backlogs.

Location: Hybrid in Lisbon, Portugal

Company

Datadog is a global SaaS business delivering a combination of growth and profitability.

What you will do

Lead research initiatives to identify novel vulnerabilities and threats in Generative AI and large language model (LLM) technologies.
Develop and demonstrate proof-of-concept attacks and adversarial techniques for educational and defensive purposes.
Translate findings into actionable detection content, product improvements, and engineering backlogs.
Collaborate with product managers, detection engineers, and software teams to integrate research into Datadog’s platform.
Share research through blog posts, conference talks, and open-source contributions to promote customer trust and industry awareness.
Engage with external stakeholders—including cloud providers and open-source communities—for responsible disclosure and remediation.

Requirements

Experienced in Generative AI systems, with a deep understanding of vulnerabilities like prompt injection or model poisoning.
Familiar with the OWASP Top 10 for LLMs and the application of traditional security principles (e.g., input handling, access control) to AI environments.
Background in offensive security, penetration testing, or vulnerability research in cloud or SaaS environments.
Able to independently plan and execute research projects with stakeholder alignment.
Skilled in communicating complex findings clearly—through documentation, internal sharing, or public forums.
Proficient in programming languages such as Go, Python, or Rust for building tools and systems for research.

Nice to have

Experience working in a Security Research organization.
A proven track record in discovering, disclosing, and documenting vulnerabilities.
Experience presenting your research at large conferences.
Experience working in an OKR driven environment.

Culture & Benefits

New hire stock equity (RSUs) and employee stock purchase plan (ESPP).
Continuous professional development, product training, and career pathing.
Intradepartmental mentor and buddy program for in-house networking.
An inclusive company culture, ability to join our Community Guilds (Datadog employee resource groups).
Free, global mental health benefits for employees and dependents age 6+.
Competitive global benefits.

Senior Security Researcher (GenAI)