Security Researcher Job at JFrog (Netanya/Tel Aviv)

Security Researcher

Join one of the elite research teams powering Microsoft Defender, the dominant m...

Location

Israel , Tel Aviv; Herzliya

Salary:

Not provided

Microsoft Corporation

Expiration Date

Until further notice

Requirements

At least 4+ years of hands-on experience in security research or threat hunting, with a specialized focus on identity, cloud, or AI-based threat scenarios
Deep understanding of the threat landscape, including modern attacker techniques, AI-driven threats, and complex kill-chains, with a focus on platform internals across OS, Cloud Workloads and Identity platforms
Proven ability to reason over large-scale datasets using big-data query languages, applying security expertise to identify novel patterns and make evidence-based decisions
Familiarity with cloud environments (e.g., Azure, AWS) and the specific security challenges inherent to hybrid and multi-cloud infrastructures in large enterprise customers
Experience hunting across diverse signal sources, effectively uncovering threats within on-premises, hybrid, and cloud environments

Job Responsibility

Investigate real world advanced attacker TTPs to develop high-fidelity protection signals, and robust logic across complex kill-chains
Design and implement innovative capabilities that autonomously prevent, detect and disrupt sophisticated threats in near real-time
Infuse deep security expertise into the analysis of massive telemetry sets using big-data query languages, reasoning over data to identify novel malicious patterns, and drive evidence-based research decisions
Partner with engineering and product teams to share research insights, validate protection concepts, and push ideas forward into production-ready protection at a global scale
Contribute expert insights to a strategic feedback loop by analyzing real-world attack data and telemetry to refine protection coverage and accuracy

Fulltime

Security Researcher

Microsoft Defender for Endpoint (MDE) is a product for preventative protection, ...

Location

United States , Redmond

Salary:

84200.00 - 165200.00 USD / Year

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Bachelor's Degree in Statistics, Mathematics, Computer Science, Computer Security, or related field OR equivalent experience
1+ years of experience in software development
1+ years of experience with large-scale data, utilizing either distributed data processing frameworks (e.g., Apache Spark, Hadoop), real-time data streaming platforms (e.g., Kafka), or query languages like SQL and KQL
1+ years of experience with Large Language Models and/or agentic systems

Job Responsibility

Investigate attacks through threat hunting on top of product telemetry - identifying protection gaps and opportunities for systems to better protect our customers
Experiment with and apply large language models and agentic systems to protect our customers and improve our internal systems
Propose, design, experiment, and implement machine learning and automation designs to protect our customers
Collaborate closely with engineering and product teams to design security sensors, validate protection concepts, and measure effectiveness using data-driven methodologies
Own end-to-end lifecycle from hypothesis to productionization

Fulltime

Security Researcher

Microsoft Defender Experts provides expert-led services that help organizations ...

Location

India , Hyderabad

Salary:

Not provided

Microsoft Corporation

Expiration Date

Until further notice

Requirements

Graduate degree in engineering or equivalent discipline
3–5 years of experience in cybersecurity (SOC, IR, Threat Hunting, Red Team)
Hands-on experience with SIEM, EDR, and cloud-native security tools (Microsoft XDR, Sentinel, CrowdStrike, etc.)
Experience with at least one cloud platform (Azure, AWS, GCP) and its associated security services and configurations
Proficiency in KQL, Python, or similar scripting languages for data analysis and automation
Strong knowledge of MITRE ATT&CK, Cyber Kill Chain, and adversary TTPs
Familiarity with operating system internals (Windows, Linux) and endpoint/network forensics
This role requires the candidate to work in shifts

Job Responsibility

Monitor, triage, and respond to security incidents using alerts and incidents from Microsoft Defender products (MDE, MDI, MDO, MDA, MDC, Sentinel etc.)
Perform proactive threat hunting using hypothesis, and telemetry from endpoints, identities, cloud and network
Develop hunting queries using Kusto Query Language (KQL) or similar to uncover suspicious patterns and behaviors
Investigate security incidents across hybrid environments and contribute to root cause analysis and containment strategies
Collaborate with internal teams (defender, threat intelligence, engineering) to enhance detection logic, develop automations, and improve incident response workflows
Contribute to incident documentation, detection playbooks, and operational runbooks
Stay current with evolving threat landscapes, cloud attack vectors, and advanced persistent threats (APT)

Fulltime

Security Researcher

At JFrog, we’re reinventing DevOps to help the world’s greatest companies innova...

Location

Israel , Netanya/Tel Aviv

Salary:

Not provided

JFrog

Expiration Date

Until further notice

Requirements

At least 2 years of experience as a Security Researcher
Vulnerability research experience in any of the following languages: Python, Node.JS, Java, C
Experience with code exploitation (for example, Penetration testing in backend environments or web applications, or binary exploitation)
Programming experience in Python
Experience in writing technical reports

Job Responsibility

Research CVEs and 1-day vulnerabilities in various programming languages and ecosystems
Define how to automatically find exploitable vulnerabilities & develop code that identifies the instances where a vulnerability is exploitable
Perform security research on various open-source technologies, frameworks, and libraries
Write technical reports regarding all research subjects mentioned above

Senior Cloud Security Researcher - Security Automation (Cortex)

Join a team redefining cloud security operations across Cloud Detection & Respon...

Location

Israel , Tel Aviv

Salary:

Not provided

Palo Alto Networks

Expiration Date

Until further notice

Requirements

4+ years in security engineering, cloud operations, incident response, threat hunting, DevSecOps, or related security disciplines.
2+ years of hands-on experience securing or operating environments within Amazon Web Services (AWS), Microsoft Azure, or Google Cloud Infrastructure (GCI/GCP).
Strong experience with Kubernetes, containers, and modern cloud-native architectures.
Deep understanding of cloud networking concepts, including VPC Flow Logs, Transit Gateways, service meshes, and traffic patterns (East-West vs. North-South).
Strong comprehension of identity systems (IAM) and how policies interact with network controls to establish secure boundaries.
Experience with CI/CD pipelines and modern software delivery practices.
Proven experience with incident triage, investigations, containment, remediation, or formal operational response processes.
Experience with posture management, governance controls, or applying security best practices such as CIS Benchmarks and recognized cloud architecture frameworks.
Strong scripting or programming proficiency in languages such as Python, Go, or Bash.
Excellent communication skills, demonstrating the ability to clearly explain complex findings and facilitate alignment across cross-functional teams.

Job Responsibility

Help build the next generation of the Autonomous Cloud SOC by transforming detections, posture findings, and emerging threats into intelligent investigation and response workflows.
Design and build automated playbooks that investigate security signals, gather evidence, assess blast radius, validate risk, and guide or execute response actions.
Work across cloud control planes, identity systems, Kubernetes environments, network telemetry, and posture data to turn signals into high-confidence outcomes.
Leverage existing detections, continuously improve investigation logic, and ensure response workflows remain effective as cloud environments and attacker techniques evolve.

Fulltime

Principal Security Researcher (DNS Security)

The DNS Security Research team delivers high-quality content to our products to ...

Location

United States , Santa Clara

Salary:

162700.00 - 263175.00 USD / Year

Palo Alto Networks Italia

Expiration Date

Until further notice

Requirements

PhD in Computer Science, Cyber Security or Machine Learning or equivalent experience
2+ years of Security research experience
Creative thinker and team player. Have great passion and be highly self-motivated in data-driven security research
Expertise in DNS and IPv4/IPv6
Good knowledge of machine learning techniques and algorithms, such as k-NN, Naive Bayes, SVM, Decision Trees, Logistic Regression, Deep Learning, and Boosting
Familiar with large-language models (LLMs) and experience to leverage them to address cybersecurity threats
Excellent programming skills in Python, Shell script, Go, or SQL
Understanding of core network protocols (TCP/IP, HTTP/HTTPS, etc.)
Knowledge and experience with modern databases and big data tools, such as MySQL, MongoDB, Elasticsearch, Redis, BigQuery
Be comfortable working independently, efficiently

Job Responsibility

Track and research emerging threats and innovate new ways to identify malicious indicators used by malware and attacks, including domains, URLs, IP addresses, sha256, email addresses, etc.
Design and build scalable and extensible prevention/detection systems
Leverage data-driven approaches, such as statistical analysis, machine learning, and other advanced techniques
Convert research results and discoveries into products, research papers, etc.

What we offer

restricted stock units
bonus
employee benefits

Fulltime

Principal Security Researcher (DNS Security)

The DNS Security Research team delivers high-quality content to our products to ...

Location

United States , Santa Clara

Salary:

162700.00 - 263175.00 USD / Year

Palo Alto Networks

Expiration Date

Until further notice

Requirements

PhD in Computer Science, Cyber Security or Machine Learning or equivalent experience
2+ years of Security research experience
Creative thinker and team player. Have great passion and be highly self-motivated in data-driven security research
Expertise in DNS and IPv4/IPv6
Good knowledge of machine learning techniques and algorithms, such as k-NN, Naive Bayes, SVM, Decision Trees, Logistic Regression, Deep Learning, and Boosting
Familiar with large-language models (LLMs) and experience to leverage them to address cybersecurity threats
Excellent programming skills in Python, Shell script, Go, or SQL
Understanding of core network protocols (TCP/IP, HTTP/HTTPS, etc.)
Knowledge and experience with modern databases and big data tools, such as MySQL, MongoDB, Elasticsearch, Redis, BigQuery
Be comfortable working independently, efficiently

Job Responsibility

Track and research emerging threats and innovate new ways to identify malicious indicators used by malware and attacks, including domains, URLs, IP addresses, sha256, email addresses, etc.
Design and build scalable and extensible prevention/detection systems
Leverage data-driven approaches, such as statistical analysis, machine learning, and other advanced techniques
Convert research results and discoveries into products, research papers, etc.

What we offer

Restricted stock units
Bonus

Fulltime

Principal/ Senior Security Researcher Linux & API Security EDR

Are you an innovative security researcher with a deep understanding of Linux sys...

Location

Israel , Tel Aviv

Salary:

Not provided

Palo Alto Networks Italia

Expiration Date

Until further notice

Requirements

5+ years of experience in cybersecurity research, with a proven track record of impactful projects
Good knowledge of Linux OS internals, including both user and kernel space
Solid knowledge of the cyber threat landscape, modern malware techniques, and APTs
Hands-on experience in real-world threat hunting, incident response, or detection engineering
Proficiency in programming languages such as Python, C, and/or C++, with a strong understanding of system-level programming and APIs
Excellent problem-solving skills and a passion for cybersecurity innovation
Ability to work independently, take initiative, and collaborate effectively in a team environment

Job Responsibility

Play a pivotal role in shaping the future of our security solutions
Enhance product effectiveness by designing advanced protection components and developing sophisticated detection rules
Research Linux OS internals, virtualized environments, and malware behaviors to inform and strengthen our attack prevention mechanisms
Apply advanced AI and big data approaches to investigate and analyze large-scale datasets across our client base
Lead research on novel protection concepts and bring them to production-grade quality, serving as a subject matter expert
Stay up to date with the latest attacker methodologies, APT campaigns, and TTPs targeting Linux systems
Conduct static and dynamic reverse engineering of Linux malware to uncover new techniques and develop mitigation strategies
Collaborate closely with engineering, product management, and other research teams to translate research findings into production features

Fulltime

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