Junior Cyber Software Engineer
CACI Open At a glance
Junior Software Engineering role at CACI. Aberdeen Proving Ground · full-time · $69,600–$142,700 base.
techroles summary, based on the employer's posting.
What you'll do
- Build efficient, secure software mainly in Rust, with supporting code in C, C++ or Go
- Rework older modules with memory-safe designs to reduce risks such as buffer overflows
- Help connect software to custom hardware, vehicle data networks and tactical C5ISR systems
- Use automated workflows to review, debug and test code against design and performance requirements
- Contribute to requirements work, software architecture and technical records aligned with DoD standards
What you bring
- A bachelor's degree in computer science, software or computer engineering, or a related STEM area
- One to three years developing software professionally, or comparable military or co-op experience
- Working knowledge of Rust ownership, borrowing, concurrency and safe and unsafe code
- Familiarity with C, C++ or Go, plus Linux, shell scripting and Git
- An active DoD Secret clearance that you can keep current
Who this fits
This junior role suits someone ready to develop secure systems software for embedded and tactical environments. You must hold and maintain an active Secret clearance, and travel may reach ten percent within the continental United States.
From the employer
In this role, you will apply Rust and other memory‑safe, systems-level languages to build efficient, secure, and resilient software across embedded architectures, military ground vehicles, and tactical networks. You will collaborate with a multidisciplinary engineering team to modernize the tactical cyber landscape, reduce vulnerabilities, and support critical
Secure Software Development
- Develop clean, safe, and highly efficient code primarily in Rust, with supplemental modules in C, C++, or Go.
Vulnerability Mitigation
- Redesign and harden legacy software modules using memory‑safe architectures to mitigate memory-corruption exploits such as buffer overflows.
Embedded & Tactical Systems Integration
- Support integration of software components with custom hardware, in‑vehicle data networks, and tactical C5ISR communication systems.
Testing & Debugging
- Review, debug, and test software using automated pipelines to meet strict design requirements and validate defense performance metrics.
Lifecycle & Documentation
- Contribute to requirements analysis, architecture development, and creation of technical documentation aligned with DoD software engineering standards.
Required Qualifications & Skills
Education
- Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or related STEM discipline.
Experience
- 1–3 years of professional software development experience, or equivalent military / co‑op experience.
Language Proficiency
- Strong understanding of Rust fundamentals (safe/unsafe Rust, ownership & borrowing rules, concurrency).
- Hands-on experience or working familiarity with C, C++, or Go.
Technical Environment
- Proficiency with Linux environments, shell scripting, and version control using Git.
Clearance
- Active DoD Secret security clearance required and must be maintained.
Preferred & Desired Qualifications
- Familiarity with memory-safe coding paradigms, static analysis tools, and cryptographic implementation approaches.
- Exposure to embedded systems development, hardware abstraction layers, or real-time operating systems (RTOS).
- Foundational understanding of DoD cybersecurity frameworks such as RMF and STIGs.
- DoD 8140/8570 compliance (e.g., Security+ CE).
What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. 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.
The proposed salary range for this position is:
$69,600 - 142,700 USDCACI 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.
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