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Jazz is building next-generation Data Loss Prevention (DLP) technology that replaces rule-based frameworks with AI-powered investigation. Instead of flooding security teams with alerts, Jazz delivers pre-investigated answers powered by an Agentic Investigator that learns your business context. The platform is designed to be operated by a single person, fundamentally changing how organizations approach endpoint security.
As a Senior Low-Level Engineer, you will design and develop core capabilities for Windows and macOS endpoint agents. You'll own features end-to-end, from early research and proof of concept through production deployment. This is a high-impact role in an early-stage company where you'll take full ownership, move quickly, and shape foundational systems that power forensic endpoint intelligence.
Key responsibilities include:
- Design and develop core agent capabilities for Windows and macOS platforms
- Explore new technical approaches, prototype solutions, and translate ideas into reliable, secure production code
- Own features E2E and integrate agent capabilities with backend systems and product workflows
- Build performant and reliable components that operate at the OS level and handle complex system interactions
- Ensure strong observability, performance, and stability across agent behavior in production
- Collaborate with backend, product, and security teams to deliver capabilities supporting real-world security investigations
You'll work on cutting-edge AI + cybersecurity challenges, architect systems with massive technical depth and scale, and have direct impact on product outcomes and engineering decisions. The role offers high ownership and autonomy in an early-stage environment, with the opportunity to collaborate with elite engineers and founders who have built large-scale systems.
The office is located at Sonol Tower, Tel Aviv, next to Carlebach rail station.
REQUIREMENTS:
- 4+ years hands-on experience with low-level programming in Go, C, C++, or Swift, with deep understanding of systems programming
- Strong knowledge of operating system internals and system-level development
- Experience building endpoint agents, system extensions, or similar low-level software
- Experience working with Windows and macOS environments
- Experience with reverse engineering and analyzing system behavior
- Rust experience is an advantage
- Demonstrated technical curiosity through projects, CTFs, competitions, or other hands-on technical activities
- Ability to work independently, move quickly, and take ownership of complex technical challenges
