Senior Embedded Engineer — Security & Reverse Engineering

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

Job summary

CACI International in Florham Park, NJ, seeks a Senior Embedded Software Engineer to tackle embedded firmware, reverse engineering, and cybersecurity challenges. You’ll craft custom tools, uncover vulnerabilities, and contribute to national cybersecurity efforts.

The role emphasizes low-level software/hardware analysis, collaboration with hardware teams, and reporting to security and engineering groups. Strong C/C++, assembly, RTOS, and scripting skills are essential.

Qualifications

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

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

C

C++

Assembly

Python3

RTOS

GDB

JTAG

Ghidra

IDA Pro

Tools

IDA Pro

Ghidra

Binary Ninja

GDB

JTAG

SWD

Job description

CACI International in Florham Park, NJ, seeks a Senior Embedded Software Engineer to tackle embedded firmware, reverse engineering, and cybersecurity challenges. You’ll craft custom tools, uncover vulnerabilities, and contribute to national cybersecurity efforts.

The role emphasizes low-level software/hardware analysis, collaboration with hardware teams, and reporting to security and engineering groups. Strong C/C++, assembly, RTOS, and scripting skills are essential.