Senior Security Engineer

Overview

Remote
Depends on Experience
Full Time

Skills

security
engineering
product security
endpoint security
reverse engineering
fuzzers
EDR
windows
c
c++
python
Rust
jenkins

Job Details

Senior Security Engineer

Salary: Open + Bonus + Stock Options

Location: Remote

*We are unable to provide sponsorship for this role*

Qualifications

  • Product security or endpoint-focused consulting, with hands-on testing of Windows-based agents or EDR/AV products
  • Experience building fuzzers or integrating existing fuzzing frameworks for native code
  • Experience and capability in building automated test harnesses from the ground up
  • Strong Windows OS internals knowledge, especially user-mode hooking and Win32 API behaviors
  • Proficient in C/C++ and Python, with solid experience calling with Windows APIs
  • Experience reviewing and validating security findings
  • Comfortable researching and suggesting security features end-to-end and creating technical content

Preferred

  • Rust development experience, particularly around FFI or unsafe code
  • Published tooling or research in vulnerability discovery, fuzzing, and/or automated test frameworks
  • Hands-on experience with CI platforms (GitHub Actions, Jenkins) to automate security workflows

Responsibilities

  • Design and implement security test harnesses from scratch to simulate real-world ransomware behavior
  • Develop and integrate fuzzers (libFuzzer, AFL/WinAFL, or custom tools) for automated crash and vulnerability discovery
  • Build user-mode hooking instrumentation and explore EDR bypass techniques to exercise agent internals
  • Triage, reproduce, and analyze security findings against our agent and libraries
  • Perform root-cause analysis on crashes or logic flaws; build minimal PoC exploits or reproducer cases
  • Deep understanding of Windows internals (ring transitions, memory management, Win32 API) with focus on user-mode security hooks
  • Collaborate on driver-level or API-level integrations when necessary (no kernel-driver dev required)
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