Job Summary

We are seeking a Linux developer with a strong background in C/C development, reverse engineering (e.g. disassemblers & decompilers), Unix features (e.g. pThreads, Mutexes, Signal Handlers), and familiarity with OS subsystems (e.g. Binder) on the Android platform. Applicants will join a team of developers building high-impact native applications for Android devices, with continuous and meaningful feedback from users. Applicants are expected to integrate reverse engineering results into development products and expand their knowledge of the Android platform to meet development objectives and customer requirements.

CODEX (Cyber Offense and Defense Experts) division brings together an elite team of mission-focused industry experts who are well known for their ability to overcome the most advanced technical challenges. The team comprises engineers of multiple disciplines including vulnerability research, reverse engineering, CNO/CNE development, hardware emulation, system engineering, and data analytics. Our engineers do more than just work with cutting-edge technology—they ensure the missions succeed for the customers! CODEX offices span the nation and offer its engineers the ability to advance their careers through mentorship, training, and an expansive technical portfolio that covers every side of cyber.

Role Type

This position is an onsite role.

Basic Qualifications:

• Experience with C/C on Unix/Linux platforms using Make/CMake build systems
• Experience with core Unix features, including
• Named Pipes / Pipes
• pThreads
• Signal Handlers
• Familiarity with static decompilers (e.g HexRays) & disassemblers (e.g. Ghidra)
• Experience developing against or working with large opensource projects (e.g. AOSP)
• Active and transferable U.S. government-issued TS/SCI with polygraph security clearance is required prior to start date.
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Desired Skills:

• Experience with the ARM64/ARM32 Architecture
• Experience with Linux/Unix bootloaders (e.g. u-boot, aboot)
• Experience developing and productizing N-days for
• Experience with and knowledge of SELinux, cgroups, and other Linux permission models

Familiarity with APK decompilation tools such as JEB, JADX or Dex2Jar