Senior Security Researcher

6 hours ago

Tel Aviv, Tel Aviv, Israel Knostic Full time ₪900,000 - ₪1,200,000 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.

Who You Are

  • You have 2+ years of experience in malware analysis.
  • 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.

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

  • Senior Security Researcher

    5 hours ago

    Tel Aviv, Tel Aviv, Israel Reclaim Security Full time ₪90,000 - ₪120,000 per year

    Company DescriptionReclaim Security is redefining how organizations fix security exposures. Our AI Security Engineer automates remediation, eliminating manual effort while ensuring business continuity. Instead of endless prioritization lists, Reclaim enables teams to actuallyresolveissues safely, intelligently, and at scale.Join a team of seasoned security...

  • Senior Security Researcher

    6 hours ago

    Tel Aviv, Tel Aviv, Israel Nagomi Security Full time ₪120,000 - ₪180,000 per year

    In cybersecurity, technology too often overshadows the business element. At Nagomi, we're restoring the balance. As the first execution layer for Continuous Threat Exposure Management, we help security teams eliminate all types of exposures with the security tools they already have, without adding more complexity or noise.By unifying data across assets,...

  • Security Researcher

    2 weeks ago

    Tel Aviv, Tel Aviv, Israel Astrix Security Full time ₪60,000 - ₪120,000 per year

    We're looking for a passionate and curiousSecurity Research Studentto join our Research team at Astrix. This is a unique opportunity to explore cutting-edge technologies in the emerging domain ofNon-Human Identity (NHI) Security, working alongside experienced researchers in cybersecurity, cloud, and AI.About the role:Conduct in-depth security research on...

  • Security Researcher

    2 weeks ago

    Tel Aviv, Tel Aviv, Israel Astrix Security Full time ₪60,000 - ₪80,000 per year

    We're looking for a passionate and curious Security Research Student to join our Research team at Astrix. This is a unique opportunity to explore cutting-edge technologies in the emerging domain of Non-Human Identity (NHI) Security, working alongside experienced researchers in cybersecurity, cloud, and AI. About the roleConduct in-depth security research on...

  • Senior Security Vulnerability Researcher

    5 hours ago

    Tel Aviv, Tel Aviv, Israel Noma Security Full time ₪120,000 - ₪180,000 per year

    Noma Security is redefining how organizations Safely adopt AI into their organization. As a Security Researcher on our Vulnerability Research team, you'll play a critical role in uncovering threats in emerging AI and application technologies. You'll work with world-class engineers and security professionals to identify vulnerabilities, simulate real-world...

  • Security Researcher

    5 hours ago

    Tel Aviv, Tel Aviv, Israel Salt Security Full time ₪90,000 - ₪120,000 per year

    About us:With80% of all internet traffic routed through APIs, an attack surface that was considered small and relatively unimpactful has suddenly become huge and very serious.In today's cyberspace, the API proudly stands as the gateway for almost everything: bank accounts, online services, cars, smart meters, Cloud I/S, and more.Our team's mission is to...

  • Senior Security Researcher

    6 hours ago

    Tel Aviv, Tel Aviv, Israel Knostic Full time ₪120,000 - ₪180,000 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...

  • Senior Security Researcher

    5 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...

  • Senior Security Researcher

    2 weeks ago

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

    What you need:Education:B.Sc. in Computer Science – mustM.Sc. in Computer Science or related field – advantageExperience & Skills:5+ years of hands-on experience in security research or related security roles - must.Experience in web application security (AppSec) – must.Proven hands-on experience conducting security research and building POCs -...

  • Senior Security Researcher

    6 hours ago

    Tel Aviv, Tel Aviv, Israel Palo Alto Networks Full time ₪120,000 - ₪180,000 per year

    Company DescriptionOur MissionAt Palo Alto Networks everything starts and ends with our mission:Being the cybersecurity partner of choice, protecting our digital way of life.Our vision is a world where each day is safer and more secure than the one before. We are a company built on the foundation of challenging and disrupting the way things are done, and...