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Wiz

Cloud security platform for DevOps teams

Low-Level OS Engineer

Systems Software EngineeringConfirmed live in the last 24 hours
Full-timeTel Aviv-Yafo, IsraelNo salary listed

About the Job

Requirements

  • Bachelor's degree in Computer Science or Software Engineering, or a related field, or equivalent experience.
  • Deep knowledge of the internals of at least one major operating system (Linux, Windows, or macOS), including processes and threads, memory management, file systems, networking, and syscall/kernel interfaces.
  • Solid debugging skills with low-level tools such as gdb/lldb, WinDbg, perf, strace, and crash dumps.

Responsibilities

  • Build sensor components end to end, from research and design through implementation, rollout, and production monitoring.
  • Develop and maintain OS-level monitoring, including eBPF programs on Linux, kernel drivers on Windows, and system extensions/Endpoint Security on macOS.
  • Take part in technical and architectural decisions for a codebase shared across several operating system variants and architectures.
  • Conduct design and code reviews.
  • Analyze and improve the CPU usage, memory usage, and stability of a component that runs on every customer host.
  • Investigate production issues across a large and varied fleet, including kernel version quirks, crash dumps, and telemetry analysis.
  • Work with Detection Research, Backend, DevOps, and Product teams.

Desired Qualifications

  • Four or more years of experience in systems or low-level software development.
  • Strong engineering fundamentals in concurrency, performance, and defensive coding.
  • Production experience with Rust.
  • Experience with Linux development, including eBPF (CO-RE, verifier constraints, kprobes/tracepoints/LSM), kernel development, cgroups/namespaces, and containers.
  • Experience with Windows development, including kernel driver development (minifilters, callbacks, ETW, WFP), WDK, and BSOD analysis.
  • Experience with macOS development, including the Endpoint Security framework, system extensions, and XNU internals.
  • Experience building security products such as EDR, antivirus, or runtime protection agents.
  • Familiarity with Kubernetes, Docker, and cloud platforms (AWS, GCP, Azure).
  • Experience shipping software that runs on customer-managed infrastructure at scale.

About the Company

Wiz

Cloud security platform for DevOps teams

Wiz.io provides a cloud security platform for enterprises, protecting cloud workloads for security, development, and DevOps teams through a subscription model. Its platform acts as a unified security command center that integrates with development workflows to secure containers, Kubernetes, and cloud environments from design to runtime. It scans Infrastructure as Code, container images, and VM images for vulnerabilities and misconfigurations, continuously monitors for suspicious activity, and enforces automated compliance with regulations like PCI, GDPR, and HIPAA. Wiz.io differentiates itself with end-to-end coverage across IaC, containers, and cloud workloads in a self-service, scalable model for large enterprises, enabling real-time threat detection, data-exposure protection, and attack-path elimination to help businesses run cloud-native apps securely and efficiently.

Company size
1,001-5,000
Company stage
Acquired
Total funding
$1.9B
Headquarters
New York City, New York
Founded
2020

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