Senior Embedded Security Engineer

CACI International Inc; Florham Park (NJ); On-site; USD 113,000 - 238,000; Full time

Job summary

CACI International Inc in Florham Park, NJ seeks a Senior Embedded Software Engineer with expertise in embedded systems, reverse engineering, and cybersecurity. The role focuses on evaluating security and robustness of proprietary embedded systems and developing custom tools to uncover vulnerabilities.

The candidate will reverse engineer firmware and drivers, perform extraction and analysis, and collaborate with hardware engineers to access debug interfaces.

Qualifications

• Must be a US citizen and the ability to obtain a security clearance.
• 5+ years of professional experience in embedded software development with reverse engineering skills.
• Proficiency in C, C++, and assembly programming for embedded architectures such as ARM, MIPS, x86, or RISC‑V.
• Experience with RTOS environments, including VxWorks and embedded Linux device driver development.
• Understanding of embedded software IPC mechanisms, such as message queues, shared memory, and semaphores.
• Familiarity with embedded hardware interfaces, including SPI, I2C, PCIe, UART, and memory‑mapped I/O.
• Proficient in Python3 for scripting and automation.
• Hands‑on experience with disassembly and decompilation tools (e.g., IDA Pro, Ghidra, Binary Ninja) and debugging tools (GDB, JTAG).
• Knowledge of embedded security concepts, including secure boot, firmware encryption, and hardware authentication.

Responsibilities

• Reverse engineer embedded firmware, device drivers, and proprietary telecom systems to identify undocumented functionality and potential security issues.
• Perform firmware extraction, binary diffing, static and dynamic analysis, and hardware-assisted debugging.
• Collaborate with hardware engineers to access debug interfaces (e.g., JTAG, SWD), extract flash images, and inspect hardware state.
• Develop custom tools and scripts (e.g., in Python3) to automate analysis workflows such as firmware unpacking, protocol decoding, and memory analysis.
• Investigate edge‑case behaviors, error‑handling routines, and low‑level system initialization logic to reveal attack surfaces.
• Document findings clearly and translate technical complexity into actionable reports for security and engineering teams.

Skills

Reverse engineering

Embedded systems

Cybersecurity

Low-level software

Tools

C

C++

Assembly

Python

IDA Pro

Ghidra

Job description

CACI International Inc in Florham Park, NJ seeks a Senior Embedded Software Engineer with expertise in embedded systems, reverse engineering, and cybersecurity. The role focuses on evaluating security and robustness of proprietary embedded systems and developing custom tools to uncover vulnerabilities.

The candidate will reverse engineer firmware and drivers, perform extraction and analysis, and collaborate with hardware engineers to access debug interfaces.