Senior Software Engineer

CACI International • Florham Park, NJ

2d

About The Position

We are seeking a Senior Software Engineer to design and develop advanced cyber capabilities that strengthen national security. In this role, you'll work across real‑time embedded systems, network technologies, and mission‑critical cybersecurity solutions. You’ll collaborate with engineers, analysts, and customers to solve complex technical challenges, perform deep‑dive research, and build innovative tools that address emerging cyber threats.

Requirements

• 7+ years of software development experience using C, C++, Python, or similar languages
• Hands‑on Linux experience (boot, kernel, and user‑space layers)
• Demonstrated competency with at least one assembly language: MIPS, x86, PowerPC, or ARM
• Solid understanding of IP networking concepts and telecommunications systems
• Bachelor’s degree in Computer Science, Computer Engineering, or related discipline
• Active Top Secret clearance

Nice To Haves

• Active TS/SCI clearance strongly preferred
• Knowledge of cybersecurity, vulnerability analysis, and modern network technologies (IP, wireless, optical)
• Ethical hacking experience and familiarity with reverse engineering tools
• Experience with embedded system software development
• Ability to apply multiple assembly languages across diverse architectures

Responsibilities

• Lead the design, development, and testing of real‑time embedded and application‑level software for networked systems
• Develop advanced security analysis tools, vulnerability research workflows, and software‑hardening techniques
• Conduct reverse engineering across Windows, Linux, mobile, and embedded platforms
• Serve as a subject matter expert in key network technologies (IP/MPLS, 4G/5G, optical transport, and related areas)
• Analyze and evaluate security strengths and weaknesses across diverse systems and technologies
• Shape system requirements and technical direction through direct collaboration with customers
• Mentor junior engineers and contribute to team technical leadership
• Obtain and maintain a government security clearance

Benefits

• Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives.
• We offer competitive compensation, benefits and learning and development opportunities.
• Our broad and competitive mix of benefits options is designed to support and protect employees and their families.
• At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Number of Employees: 5,001-10,000 employees