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Cylake

Endpoint Engineer

Sunnyvale$150k–$250kfulltimemidAdded 1 month ago

About this role

Lead the design and development of a cross-platform endpoint security agent built in Rust, responsible for threat detection and prevention across Windows, Linux, and macOS. You'll architect a resilient, lightweight agent with advanced OS introspection, autonomous threat prevention, and offline telemetry capabilities in a small team of industry veterans.

What you'll do

  • Architect and build the core endpoint security agent from the ground up with deep OS-level visibility
  • Implement user-mode API interception, kernel-level behavioral analysis, and anti-tampering mechanisms
  • Design cross-platform telemetry collection using Windows ETW, Linux eBPF, and macOS ESF
  • Develop low-overhead threat detection heuristics and autonomous prevention capabilities
  • Engineer resilient distributed systems with offline disk spooling and secure mTLS synchronization
  • Lead technical decisions on self-healing architectures and fail-safe rollback mechanisms

What they're looking for

  • Rust programming (high-performance, low-level)
  • Windows OS internals (ETW, IPC, Named Pipes, Services, kernel drivers)
  • Cross-platform telemetry (Linux eBPF, macOS ESF)
  • Dynamic binary instrumentation and process injection
  • Distributed systems design and optimization
  • Endpoint security concepts and threat detection
  • Systems-level programming and concurrent applications
  • Anti-tampering and process protection mechanisms

Benefits

  • Competitive salary: $150,000–$250,000 per year
  • Comprehensive health and well-being benefits package
  • Opportunity to architect next-generation security products
  • Career growth with early-stage company
  • Work with industry veteran team leaders
  • Equal opportunity, inclusive workplace
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Cylake

Cylake builds an AI-native cybersecurity platform that combines endpoint security agents, observability infrastructure, and petabyte-scale data lakehouse capabilities to detect and prevent threats across systems. The company is hiring for platform engineers, data architects, frontend engineers, and systems engineers to build core infrastructure, analytics pipelines, security agent technology, and user experiences for threat investigation.

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Likely interview questions

  • Walk us through your experience architecting a cross-platform endpoint agent. What were the key challenges in supporting Windows, Linux, and macOS simultaneously, and how did you approach them?
  • Describe your hands-on experience with Windows ETW, eBPF on Linux, and ESF on macOS. How have you leveraged these technologies for telemetry collection in a production environment?
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