דרושים » מחשבים ורשתות » Linux Kernel Developer

The eBPF APM team is building a zero-instrumentation observability solution that automatically discovers services on every host, supports both plaintext and TLS-encrypted traffic, classifies Layer 7 protocols, decodes service-level traffic, and reports RED (requests, errors, duration) metrics. Leveraging deep expertise in eBPF, the team operates across a wide range of Linux kernel versions, distributions, and complex customer environments. In addition to low-level networking, the team solves challenges related to protocol versioning, TLS detection across diverse languages and runtimes, and resilient performance in production systems​.

Were looking for a senior engineer with strong systems-level thinking and a good understanding of Linux. You should be comfortable working close to the kernel, ideally with experience in eBPF, or with a strong desire to dive into it. Proficiency in Go is essential, and familiarity with networking protocols, TLS internals, or distributed tracing is a strong advantage.

Youll join a high-impact team tackling ambitious technical challengeslike decoding traffic across multiple protocols, and ensuring high-fidelity metrics in complex, real-world environments. Youll be expected to lead design and implementation efforts, contribute to roadmap planning, and collaborate across teams to ensure our solution remains robust, scalable, and frictionless for our users.
This role is a great fit for engineers who thrive on low-level, performance-sensitive problems, and want to shape the future of observability through cutting-edge kernel technology.
we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them.

What Youll Do:
Design and build core components of our zero-instrumentation APM product using eBPF and Go
Develop systems to auto-discover services, classify L7 protocols, and extract RED metrics from both plaintext and TLS traffic
Solve complex challenges around protocol parsing, encryption handling, and performance at the kernel level
Ensure broad compatibility across Linux kernel versions, distributions, and diverse customer environments
Collaborate across teams to drive technical direction, improve reliability, and scale the system for production use

A zero-instrumentation observability solution that automatically discovers services running on each host. It supports both plaintext and TLS-encrypted traffic, classifies Layer 7 protocols, decodes service-level communication, and reports RED metrics (requests, errors, duration). By leveraging low-level user and kernel APIs, the team captures comprehensive signals from the system. Beyond networking, they tackle complex challenges such as protocol versioning, TLS detection across varied languages and runtimes, and ensuring robust performance in production environments.

We're looking for a senior engineer with strong systems-level thinking and deep familiarity with Windows. You should be comfortable working close to the kernel - ideally with experience in kernel development, or a strong desire to get there. Proficiency in C/C++ is essential; experience with Go is a plus. A solid understanding of networking protocols and TLS internals is highly valuable.

Youll join a high-impact team tackling ambitious technical challenges - like decoding traffic across multiple protocols, and ensuring high-fidelity metrics in complex, real-world environments. Youll be expected to lead design and implementation efforts, contribute to roadmap planning, and collaborate across teams to ensure our solution remains robust, scalable, and frictionless for our users

This role is a great fit for engineers who thrive on low-level, performance-sensitive problems, and want to shape the future of observability through cutting-edge kernel technology.
we place value in our office culture - the relationships that it builds, the creativity it brings to the table, and the collaboration of being together. We operate as a hybrid workplace to ensure our employees can create a work-life harmony that best fits them.

What Youll Do:
Own new feature development end-to-end from ideation to implementation
Build low-overhead data collection tools based on Windows kernel drivers that collect important metrics from the kernel and in particular the network stack
Develop systems to auto-discover services, classify L7 protocols, and extract RED metrics from both plaintext and TLS traffic
Solve complex challenges around protocol parsing, encryption handling, and performance at the kernel level
Collaborate across teams to drive technical direction, improve reliability, and scale the system for production use

An innovative network security solutions provider, is at an exciting time in its history and is growing fast! We are looking for a highly skilled and versatile Linux Developer to join our development team.
As a Linux Developer , you will be responsible for designing, developing, and maintaining the infrastructure and components of our platform. As part of your role, you will also work on the frontend aspects of our platform and collaborate with stakeholders and cross-functional teams to optimize full-cycle system performance.
Responsibilities:
Develop and maintain code deployed on Linux and K8s.
Collaborate with cross-functional teams to achieve project goals.
Implement time-critical applications with high coverage, maintaining minimal footprint ensuring code is documented and maintainable.
Troubleshoot and resolve complex technical issues related to Linux internals and real-time systems.

We are growing and are looking for a Senior DevOps Engineer
who value personal and career growth, team-work, and winning!
What your day will look like:
This role is critical in supporting our companys short and long-term SaaS product expansion plans. Youll join an expanding group where your contributions can make a strong impact.
You will have the chance to design and build our customer and internal production systems using up-to-date technologies and tools.
As a DevOps Eng, you will have a chance to play a key role in all our mission critical services, working with multiple teams and groups and having a very wide view of how all of this comes together, from the request to the design, up to the build , deploy and whole lifecycle of what we build and manage in our cloud .
You will collaborate with our R&D, Security, and Corporate IT teams to deliver safe, scalable, and high-performing solutions. Members of the SaaS DevOps team act as trusted technical architects, and play a key role in determining the future of how builds and delivers its cybersecurity asset management services.
Responsibilities:
Evaluate , Design & Implement new cloud infrastructure technologies & Architecture to support our ever growing SaaS solution
Build a SaaS product to serve thousands of global customers in a modern and scalable way
Design, deploy, and operate cloud infrastructure and services for various internal (corporate) applications on behalf of other teams

We are looking for a Senior Linux Internals Software Engineer for our Tel Aviv R&D center. You will be part of a team that designs and develops the Linux internals components of our revolutionary endpoint security product for the Linux platform.
More information about Cortex XDR product can be found here.
Your Impact
Design and implement innovative capabilities for a market leading product, deployed on a range of platforms from bare-metal to the cloud
Develop critical components in the Linux internals parts of the product, incl. user and kernel-mode OS-related infrastructures in both C and C++
Utilize cutting-edge Linux technologies for real-time event collection, anti-malware, anti-exploitation, network filtering and more
Lead features in coordination with other development and QA teams
Be part a team that values SW development best practices and high standards.

We are looking for a Sr Principal Linux Security Researcher for our Tel Aviv R&D center, to work on cortex-xdr for linux, which provides runtime protection to servers and cloud workloads.
You will be part of a team that is in charge of researching, developing and improving Anti-Exploit capabilities, Anti-malware capabilities. The position includes researching OS internals, exploits, malware, delving into cloud security, and finding ways to mitigate new attack vectors.
Your Impact
Research, develop, and improve anti-exploitation mitigations and anti-malware modules - ranging from low-level mitigations up to tackling application-level security vulnerabilities
Work on the design, evaluation, and implementation of new security technologies
Research Linux OS internals, kernel, application codebases, vulnerabilities and exploits (Mostly internal usage but also PR)
Analyze customer issues to help with detecting and preventing malicious activities in our customers networks.

We are looking for a senior Windows developer who is passionate about software design, code quality, and performance. The job involves writing production-grade and highly performant code that will be shipped to thousands of endpoints. The role includes developing for the Windows kernel to collect the necessary data as well as writing user-mode code for integrating the kernel driver into our sensors architecture.

Responsibilities
Write production-grade C/C++ code to create robust and high-performance software drivers and applications for Windows.
Investigate possibly undocumented system behavior to enable product features or to resolve software issues.
Optimize code for maximum efficiency and resource utilization, ensuring the smooth operation of our solutions.
Collaborate closely with operating system internals to gather essential data for analyzing abnormal behavior on endpoints.
Participate in code reviews with an emphasis on design and code quality, ensuring the team adheres to best practices.
Work effectively within a team, contributing to a collaborative and innovative development environment.
Apply your problem-solving abilities to address complex technical challenges in the cybersecurity domains.

The Role Were seeking an experienced software engineer with a strong background in user-mode Windows applications and hands-on expertise in Windows driver development. This is a critical role that plays a vital part in our companys success as we continue to grow. We are looking for someone whos always ready to roll up their sleeves, dive in headfirst, and make a major impact.

Your Day-to-Day
As an Agent Developer, you will take ownership of key components of our endpoint detection and prevention solution, working within our Windows Agent SaaS team.

Design and develop using proven technologies while also inventing innovative solutions.

Participate in architectural design and strategic technical decision-making.

Contribute throughout the development cycle within a SCRUM environment.

Collaborate closely with QA, DevOps, backend developers, product managers, and fellow agent developers.

Deliver high-quality code, supported by robust unit tests integrated into our CI pipelines.

Work on low-level integrations and driver-related components essential to our security posture.

we are looking for highly capable Incident Response Expert. The Incident Response Expert role includes conducting in-depth forensic analysis, investigation and response to real-world cyber threats. A significant part of our investigations is performed onsite at the client location, in collaboration with the clients IT and security teams.
Main Responsibilities:
Participate in forensic and incident response investigations, including large scale sophisticated attacks, conduct log analysis, host and network-based forensics and malware analysis.
Participate in threat hunting: proactively hunt for targeted attacks and new emerging threats in clients networks; as well as security assessments and simulations.
Identify indicators of compromise (IOCs) and tools, tactics, and procedures (TTPs) to help ascertain whether and how breaches have occurred.
Utilize and develop tools and methodologies to improve existing investigative and hunting technological stack.
Collaborate with IT and Security teams during investigations.
Generate and present a comprehensive and professional report of findings from investigations.