דרושים » ניהול ביניים » Senior Security Research - Security for AI - Microsoft Defender for CloudApps

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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
we are looking for a researcher who can help us stay ahead of the curve. In this role, youll research and build defenses across AI systems, agentic protocols, Identity platforms, and SaaS applications. One day you might analyze a new class of AI prompt injection attacks or Agents abuse, the next youll be hunting through data or creating novel protection mechanisms for them. Youll work closely with product teams to turn research prototypes into real security features. Join our threat protection research team and be part of a team who contributes to Microsofts most advanced and innovative security solutions.

Responsibilities
Responsibilities - - Research and develop detection methods for new and advanced attack techniques - from exploits to implants. Build end-to-end PoCs, from offensive testing to scalable detection, across all our cloud and identity platforms. - Stay up to date on the latest attack trends and build strong detections across the kill chain - covering agentic AI & LLM threats, cloud and identity-based attacks. - Collaborate with multiple product and engineering teams to design the next iteration of security products, implement detection ideas and validate their effectiveness using a data-driven approach. - Collaborate with data science teams to drive ML based protections, understand, and identify detection gaps, capabilities, assumptions, and improvements - Provide cybersecurity expertise as needed during security escalations and incidents to help protect Microsoft and our customers
Requirements:
- BSc or M.Sc. in Computer Science, Software Engineering, or relevant practical experience (e.g. service in elite technology unit in IDF) - You have at least 6+ years of computer security industry experience with knowledge of adversary tradecraft, security operations, incident response, threat hunting, and of emerging threats and techniques for attacks against modern cloud environments. - 3+ years of experience researching, prototyping, and driving engineering requirements for threat protection systems. - Code fluency in either C, Python or Rust - Knowledge of the security threat landscape, with experience in the modern attacker kill chain and MITRE ATT&CK - especially in cloud, application, identity, and AI-related threat scenarios. Preferred Qualifications - - Good hands-on knowledge of AI/LLM fundamentals and concepts, including technical aspects related to usage of AI/LLM in production systems and agentic frameworks - Familiarity with OAuth and other identity protocols, as well as knowledge of the AI domain - especially MCP, A2A, and related technologies. - Industry recognized author of security research papers, blogs, or books - Low-level/security knowledge of other operating systems - Team player open to ideas and enjoys working with others to achieve shared goals. - Experience leading a project from start to finish - including idea, design, coding, testing, and ongoing maintenance. - Familiarity with cloud environments, and hybrid cloud enterprise services - A drive to tackle hard problems with level of ambiguity. #MSFTSecurity Research #CloudAppAndIdentity #Sec4AI Microsoft is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or any other characteristic protected by applicable laws, regulations and ordinances. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you need assistance and/or a reasonable accommodation due to a disability during the application or the recruiting process, please send a request via the Accommodation request form. Benefits/perks listed belENGLISH#
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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
In this role, you will work at the forefront of automated attack disruption, developing capabilities that detect and respond to advanced threats in real time, regardless of the attack workflow or stage in the kill chain. You will examine diverse and complex signals across on-premises, hybrid, and cloud environments, hunting for emerging adversary techniques, uncovering novel patterns of malicious behavior, and transforming research findings into practical, scalable protection. Your work will span from the earliest ideation stages to production-ready, customer-facing capabilities: researching and modeling attack techniques, identifying the necessary telemetry, designing robust detection logic, and ensuring that our automated disruption mechanisms can respond effectively in real-world conditions. This is an opportunity to have a direct impact on the security of organizations worldwide by building autonomous defense systems that stay ahead of evolving threats and protect customers at scale. You will collaborate closely with engineers, threat analysts, and product teams, bringing creativity and rigor to the challenge of stopping some of the most advanced attacks in the industry before they can cause harm. Our team values diversity and strives to hire individuals with varied experiences and perspectives. We understand that no candidate possesses every desired skill and experience, but together, we form a strong, effective team.



Responsibilities
Provide cybersecurity expertise as needed during security escalations and incidents to help protect Microsoft and our customers
Proactively hunt across diverse signal sources including on-premises, hybrid, and cloud environments
Stay current with the latest cyberattack trends and design robust, sophisticated detection logic across the full attacker kill-chain.
Build and implement innovative automated disruption capabilities that autonomously detect and mitigate attacks in real time.
Collaborate with engineering and product teams to design security sensors, validate protection ideas, and measure effectiveness using data-driven approaches.
Contribute to the broader security community by authoring technical blogs, sharing research findings, and presenting at leading security conferences.
Requirements:
You have at least 8+ years of hands-on experience in cybersecurity research, preferably in Cloud, endpoint or Identity-based threat scenarios.
Familiarity with cloud environments (e.g., Azure, AWS) and understanding of security challenges in hybrid or multi-cloud infrastructures.
Strong grasp of modern attacker techniques, including MITRE ATT&CK and full kill-chain methodologies.
Experience in threat hunting across diverse signal sources (on-prem, hybrid, and cloud).
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דיווח על תוכן לא הולם או מפלה
מה השם שלך?
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תודה על שיתוף הפעולה
מודים לך שלקחת חלק בשיפור התוכן שלנו :)
4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
What Youll Do: Join a team of curious, collaborative, and impact-driven security researchers. In this role, youll combine technical depth with creative problem-solving to protect millions of users and shape the future of identity security.

Analyze and understand the internals of authentication/network protocols and be able to independently reproduce identity-based attacks for investigation, study and research purposes.
Become a subject matter expert of investigation, collection, analysis and forensic of identity logs, including deep understanding of current trends and landscape of identity-based attacks and exploits
Collaborate with multiple product and engineering teams to design the next iteration of sensors, implement detection ideas and validate their effectiveness using a data-driven approach.
Work together with the different engineering teams to deliver the prototype and code to support the research findings.
Provide cybersecurity expertise as needed during security escalations and incidents to help protect Microsoft and our customers.
Requirements:
You have at least 7+ years of demonstrated security research experience.

Engineering skills with proficiency in developing C / Python solutions and prototypes.

Experience with leading a feature end to end (design, coding, testing, maintenance).

B.Sc. or M.Sc. in Computer Science, Software Engineering, or relevant practical experience (e.g., service in an elite technology unit in the IDF).
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דיווח על תוכן לא הולם או מפלה
מה השם שלך?
תיאור
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תודה על שיתוף הפעולה
מודים לך שלקחת חלק בשיפור התוכן שלנו :)
4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
What Youll Do: Join a team of curious, collaborative, and impact-driven security researchers. In this role, youll combine technical depth with creative problem-solving to protect millions of users and shape the future of identity security.

Analyze and understand the internals of authentication/network protocols and be able to independently reproduce identity-based attacks for investigation, study and research purposes.
Become a subject matter expert of investigation, collection, analysis and forensic of identity logs, including deep understanding of current trends and landscape of identity-based attacks and exploits
Collaborate with multiple product and engineering teams to design the next iteration of sensors, implement detection ideas and validate their effectiveness using a data-driven approach.
Work together with the different engineering teams to deliver the prototype and code to support the research findings.
Provide cybersecurity expertise as needed during security escalations and incidents to help protect Microsoft and our customers.
Requirements:
You have at least 7+ years of demonstrated security research experience.

Engineering skills with proficiency in developing C / Python solutions and prototypes.

Experience with leading a feature end to end (design, coding, testing, maintenance).

B.Sc. or M.Sc. in Computer Science, Software Engineering, or relevant practical experience (e.g., service in an elite technology unit in the IDF).
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דיווח על תוכן לא הולם או מפלה
מה השם שלך?
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תודה על שיתוף הפעולה
מודים לך שלקחת חלק בשיפור התוכן שלנו :)
4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
In this role, you will conduct technical research to analyze and break down identity-based attacks observed across the threat landscape including insights from security research, real-world incidents, customer reports, and emerging trends. Your work will directly guide product and engineering teams in building advanced visibility, high-confidence detections, and durable protections that safeguard Microsoft customers at scale.

.



Responsibilities
Analyze and deeply understand the internals of authentication and network protocols, independently reproducing identity-based attacks for investigation, exploration, and research purposes.

Become a subject-matter expert in identity-focused investigation, collection, analysis, and forensics including a deep understanding of emerging trends, evolving attack techniques, and the identity threat landscape.

Collaborate closely with multiple product and engineering teams to design next-generation sensors, implement innovative detection ideas, and validate their effectiveness using a data-driven approach.

Work hand-in-hand with engineering teams to deliver prototypes and production-ready code that support and operationalize research insights.

Provide cybersecurity expertise during security escalations and incidents to help protect Microsoft and our customers.
Requirements:
You have at least 4+ years of proven experience in security research.

Strong engineering skills with proficiency in developing solutions and prototypes in C and/or Python.

Experience owning a feature end-to-end including design, implementation, testing, and ongoing maintenance.

Demonstrated expertise in Identity Security.

B.Sc. or M.Sc. in Computer Science, Software Engineering, or equivalent practical experience (e.g., service in an elite IDF technology unit).
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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
As a Senior Security Researcher, you will lead proactive vulnerability research, developing novel proofs-of-concept and exploit chains that emulate real-world attackers. You will discover vulnerabilities across AI systems, validate exploitability, and work closely with engineering and product teams to drive remediation. The vulnerabilities you will find will impact hundreds of millions of users!



Responsibilities
Become a founding member of the AIAL group as part of Microsoft Red Team. Help shape the team culture and practices.
Research and discover zero-day vulnerabilities in AI applications, models, and AI service ecosystems. Work closely with Red Team operators and engineering teams to address findings and strengthen resilience of AI-driven systems.
Analyze a wide array of data sources to identify potential security weaknesses and breach points within Microsofts AI infrastructure.

Develop tools and techniques to scale and accelerate adversary emulation and vulnerability discovery.

Advocate for security change across the company through building partnerships and clearly communicating impact of risks.
Requirements:
You have a B.Sc. or M.Sc. in Statistics, Mathematics, Computer Science or related field OR relevant practical experience (e.g. service in elite technology unit in IDF).
6+ years of hands-on experience in security research, including 3+ years in vulnerability security research.
A drive to tackle hard problems with level of ambiguity.
Knowledge of the security threat landscape, with experience in the modern attacker kill chain and MITRE ATT&CK - especially in AI-related threat scenarios.
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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
We are seeking a security researcher, who enjoys unraveling the mysteries and unique patterns of corporate computing environments and attackers techniques in Microsofts enormous scale of signals and security mechanisms, to join our Israeli research team and help provide our customers with tools to improve their security posture. The job includes performing both low level and high-level research of attackers techniques, security mechanism and controls, and data analysis over various types of telemetries.

Responsibilities include:

Analyze and research security controls, attackers techniques and anomalous patterns
Explore massive amounts of data to come up with new security posture insights, which can then be translated into security recommendations for our customers
Work together with the different engineering teams to develop the code to support the research findings
Collaborate with multiple product teams to design sensors, implement discovery & detection logics and validate their effectiveness using a data-driven approach
Collaborate with data science teams to understand and identify detection gaps, capabilities, assumptions and improvements
Collaborate with other teams across Microsoft and come up with innovative ideas which should be part of future versions of the product
Requirements:
You have at least 10+ years of security research experience
Proficiency in developing C, Python or.NET
Experience with leading a feature end to end (design, coding, testing, maintenance)
B.Sc. or M.Sc. in Computer Science, Software Engineering, or relevant practical experience (e.g. service in elite technology unit in IDF)
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מודים לך שלקחת חלק בשיפור התוכן שלנו :)
4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
We are seeking a security researcher, who enjoys unraveling the mysteries and unique patterns of corporate computing environments and attackers techniques in Microsofts enormous scale of signals and security mechanisms, to join our Israeli research team and help provide our customers with tools to improve their security posture. The job includes performing both low level and high-level research of attackers techniques, security mechanism and controls and data analysis over various types of telemetries.

We value diversity and welcome candidates with different experiences and perspectives. If you are a team player who loves creating products for and with customers, come join us and be part of building a better world.



Responsibilities
Analyze and research security controls, attackers techniques and anomalous patterns
Explore massive amounts of data to come up with new security posture insights, which can then be translated into security findings for our customers
Work together with the different engineering teams to develop the code to support the research findings
Collaborate with multiple product teams to design sensors, implement discovery & detection logics and validate their effectiveness using a data-driven approach
Collaborate with other teams across Microsoft and come up with innovative ideas which should be part of future versions of the produc
Requirements:
You have at least 10+ years of security research experience
Proficiency in developing C, Python or.NET.
Experience with leading features end to end.
B.Sc. or M.Sc. in Computer Science, Software Engineering, or relevant practical experience (e.g. service in an elite technology unit in IDF)
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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
We are seeking a Senior Applied Scientist to contribute to the ongoing development of Microsoft 365 Copilot in Excel, with an emphasis on optimizing LLM and Agentic workflows. This position is part of the Microsoft 365 Excel team, dedicated to pioneering advancements in generative AI. The successful candidate will possess substantial expertise in large language models (LLMs), information retrieval, and machine learning. Responsibilities include close collaboration with engineering and product teams to innovate, design, and assess comprehensive AI solutions for millions of enterprise users. This role will influence technical direction, inform product development, and foster cross-team collaboration to deliver impactful AI-driven experiences that empower users to achieve more.



Responsibilities

Youll work as part of an Applied Science team on high-impact, technically ambitious AI projects that directly shape the future of Microsoft 365 Copilot in Excel including

You will design, fine-tune, and deliver models and agentic flows for integration with Excel Agent and on-canvas experiences.
You will leverage state-of-the-art LLM fine-tuning and retrieval methods, with robust evaluation metrics and A/B testing to ensure data-driven progress.
You will gather and curate relevant benchmarks, build a comprehensive evaluation framework, and develop GPT-based evaluators (LLM-as-a-Judge). Run controlled experiments to compare performance, efficiency, and scalability using data-driven metrics and A/B testing focusing on reproducible and impactful results.
You will continuously study emerging literature, share insights with leadership and peers during research reviews and deep dives adapt quickly to new findings, and integrate them into experiments and when applicable share with broader research community.
Requirements:
M.Sc. / Ph.D. in Computer Science, Information Systems, or Data Science (Ph.D. strongly preferred). Candidates with masters degrees with proven industry experience or a strong publication record in the areas of LLM, Information Retrieval, Machine Learning, Natural Language Processing, and Deep Learning are considered as well.

We require strong hands-on (at least 3+ years) of experience in building and deploying Machine Learning products. Key areas of expertise include Natural Language Processing and Large Language Models, along with an understanding of concepts such as Privacy and Responsible AI. Candidates are expected to demonstrate a strong history of successfully translating applied research into production-ready solutions, along with a proven track record of delivering projects within large-scale production environments.

We are seeking candidates with proven expertise in the LLM domain, demonstrating comprehensive knowledge of relevant concepts in the domain. Ideal applicants should be proficient in areas such as LLMs post training, including CPT, SFT and RL, LLM benchmarking, agentic flows, and model alignment.

Outstanding proficiency in problem-solving and data analysis, with substantial expertise in applied statistics. Notably experienced in evaluating the performance of large language models (LLMs), developing benchmarks tailored to practical scenarios.
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1 ימים
Check Point
Location: Tel Aviv-Yafo
Job Type: Full Time
We seek a strong, motivated, and highly technical researcher who can be part of the Innovation & Research team.

With an R&D mindset, the research outcome will be integrated into Checkpoint products.

The position allows gaining extensive knowledge about security-related issues based on Machine Learning algorithms that would help to secure organizational networks, including IoT devices.

You will be able to directly impact protections against major vulnerabilities.

Key Responsibilities
Be part of the Innovation team that is responsible for Check Points Policy Insights and IoT security solutions.
Build ML/AI solutions together with a strong partnership with our engineering team.
Work with data throughout the entire pipeline from Data Engineering and Data Analytics to ML/AI models.
Collaborate with all the data & research-related groups within Check Point.
Developing and implementing protection mechanisms against diverse cyberattacks, while investigating IoT devices to analyze their network behaviours and integration within complex systems.
Productization & development of technologies from the POC stage into an enterprise-scale security solution.
Work closely with other development teams, QA, product management, and customers.
Requirements:
BSc in Computer Science/Software Engineering or equivalent knowledge.
At least 3 years of experience in product-oriented data analytics/feature engineering/data science/research /hypothesis lead research.
Experience with machine learning frameworks and libraries such as TensorFlow, PyTorch, scikit-learn, etc.
Experience with productizing machine learning models and/or implementation of Data Pipelines.
Experience working with large and complex data sets.
Experience with Cloud services.
Fast learning and ability to dive into new technologies and new pieces of code.
Enthusiastic and motivated to improve.
Independent thinker with a desire to learn.
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4 ימים
MICROSOFT ISRAEL
Location: Tel Aviv-Yafo
Job Type: Full Time
We are searching for exceptional individuals with a profound passion for security and Cloud technologies. If you are deeply committed to unraveling intricate challenges, harbor a keen fascination for vulnerability research, and strongly desire to contribute to performing cutting-edge security research. We invite you to unite with us on our mission. By doing so, you will play a pivotal role in safeguarding countless users across the global landscape. Your expertise and dedication will be instrumental in fortifying our collective digital defenses.



In this role, you will lead vulnerability research engagements in Microsoft Specialized Clouds organization, play a pivotal role in identifying and addressing potential security vulnerabilities within Microsoft's cloud and edge services, ensuring the highest levels of security for our customers and their data.



Responsibilities
Research and discover zero-day vulnerabilities in cloud and on-prem environments and associated technologies. Develop and implement proof-of-concept exploits to demonstrate potential risks and work closely with engineering teams to address findings.
Design mitigations at scale for found vulnerabilities and work with engineering teams to integrate these mitigations.
Conduct in-depth threat modeling exercises to identify security risks and vulnerabilities in Microsoft's Specialized Cloud infrastructure. Collaborate with cross-functional teams to assess the impact of identified threats and propose mitigation strategies.
Design and execute sophisticated penetration tests against Microsoft's cloud services, simulating real-world attack scenarios. Provide detailed reports outlining vulnerabilities, exploitation techniques, and recommended remediation steps.
Create and maintain cutting-edge vulnerability discovery, exploitation, and penetration testing tools. Stay abreast of the latest security research and integrate innovative techniques into the offensive security toolkit.
Collaborate with internal security teams to enhance overall security posture, including incident response and defensive security. Participate in knowledge-sharing initiatives, mentor junior team members, and contribute to the security community.
Requirements:
SENIOR: 6+ years of hands-on experience in offensive security research, with 2+ years of focus on cloud environments.
SWE II: 4+ years of hands-on experience in offensive security research, with 2+ years of focus on cloud environments.
Proficiency in multiple programming and scripting languages.
Bachelor's degree or equivalent in Computer Science, Information Security, or related field. Advanced degrees are a plus.
Strong written and verbal communication skills, with the ability to convey complex security concepts to both technical and non-technical audiences.
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