Software Engineer, Unix​/Linux

Job Title:

Software Engineer

Job Category:
Engineering

Time Type:
Full time

Minimum Clearance Required to Start:
None

Employee Type:
Regular

Percentage of

Travel Required:

Up to 10%

Type of Travel:
Continental US

We are seeking a 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.

• 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
• Contribute to team technical leadership

• 5+ 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
• Must be a US Citizen and the ability to obtain a security clearance

• 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

$94,400 - $198,200

CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.