Senior Security Researcher

6 hours ago

Tel Aviv, Tel Aviv, Israel Knostic Full time ₪100,000 - ₪120,000 per year

About Us: 

Knostic helps organizations ensure security keeps pace with AI. As enterprises adopt AI, traditional controls often fail to protect against new risks. Knostic identifies where these defenses lose effectiveness and modernizes them for an AI-powered world, making AI systems secure, visible, and manageable. 

About the Role:

We are seeking an experienced Senior Security Researcher to join our team. In this role, you'll be investigating emerging attacks, campaigns and threat actors targeting AI technology, platforms and products, craft and implement PoCs and build tools that serve the cybersecurity community against evolving threats, help create and add effective content for various Knostic products to help secure our clients against various threats. This is a hands-on position ideal for someone eager to transform research insights into effective, production-grade security defenses.

Responsibilities:

  • Research security risks in AI agents, MCP servers, and LLM-based systems, including prompt injection, jailbreaking, adversarial prompting, and related attack techniques, and design sophisticated detection strategies.
  • Conduct research on AI-augmented products, coding platforms, AI-IDEs, web, and API security to uncover new threats and attack vectors.
  • Design and execute structured research methodologies to identify, reproduce, and validate vulnerabilities in AI-assisted tools and AI-native environments.
  • Drive full-cycle research: from hypothesis and experimentation to production validation.
  • Collaborate with engineering and product teams to deliver actionable insights and translate research into detections, prevention logic, and product features that enhance our protection capabilities.
Requirements

Requirements:

Who You Are

  • You are familiar with AI-powered tools such as: Cursor, Windsurf, Claude Code, OpenAI Codex and similar tools, and enjoy exploring their security implications.
  • You have 4+ years of experience in security research, including SaaS, web, API or related domains.
  • You have strong coding and analytical skills in scripting and programming languages such as Python, JavaScript, and Bash, and proficiency with SQL-like queries.
  • You have 2+ years of experience in malware analysis.

Knostic is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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