Junior Cyber Software Engineer

Posted 4 Days Ago
Be an Early Applicant
Aberdeen Proving Ground, MD, USA
In-Office
70K-143K Annually
Junior
Information Technology • Consulting • Defense
The Role
Develop and secure tactical cyber software using Rust and other memory-safe languages. Integrate software with embedded hardware, vehicle networks, and tactical C5ISR systems. Harden legacy modules against vulnerabilities, perform testing and debugging, support requirements and architecture development, and produce technical documentation. Requires a bachelor’s degree, 1–3 years of software development experience, Linux and Git proficiency, and an active DoD Secret clearance.
Summary Generated by Built In
Job Title: Junior Cyber Software Engineer

Job Category: Information Technology

Time Type: Full time

Minimum Clearance Required to Start: Secret

Employee Type: Regular

Percentage of Travel Required: Up to 10%

Type of Travel: Continental US

* * *

he C5ISR Center Cybersecurity Division is seeking a highly motivated Junior Cyber Software Engineer to design, develop, and secure next-generation tactical cyber infrastructure and mission‑critical defense solutions.
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 & SkillsEducation
  • 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 USD

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.

Skills Required

  • Bachelor’s degree in Computer Science, Software Engineering, Computer Engineering, or a related STEM discipline
  • 1–3 years of professional software development experience or equivalent military/co-op experience
  • Strong understanding of Rust fundamentals, including safe and unsafe Rust, ownership, borrowing, and concurrency
  • Hands-on experience or working familiarity with C, C++, or Go
  • Proficiency with Linux environments, shell scripting, and Git version control
  • Active DoD Secret security clearance that must be maintained
  • 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
  • Foundational understanding of DoD cybersecurity frameworks such as RMF and STIGs
  • DoD 8140/8570 compliance, such as Security+ CE

CACI International Inc Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about CACI International Inc and has not been reviewed or approved by CACI International Inc.

  • Healthcare Strength — Pay is supported by a broad set of health-plan options across multiple national carriers, with telemedicine and tax-advantaged accounts included. Dental and vision choices are also described as multi-option, which strengthens overall coverage breadth.
  • Leave & Time Off Breadth — Flexible Time Off is available for many salaried-exempt roles, while hourly roles accrue PTO, creating multiple time-off pathways by employment class. Paid disability coverage, fixed holidays, and paid leave programs (including parental leave and other leave types) further round out time-off and leave coverage.
  • Retirement Support — Retirement support includes a 401(k) match structure described as 50% up to 8% of pay (effective 4%) and an Employee Stock Purchase Plan with a discount. Tuition reimbursement and certification support also add to the overall rewards package that complements core retirement benefits.

CACI International Inc Insights

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The Company
HQ: Reston, VA
17,673 Employees
Year Founded: 1962

What We Do

CACI’s approximately 23,000 talented employees are vigilant in providing the unique expertise and distinctive technology that address our customers’ greatest enterprise and mission challenges. Our culture of good character, innovation, and excellence drives our success and earns us recognition as a Fortune World's Most Admired Company. As a member of the Fortune 1000 Largest Companies, the Russell 1000 Index, and the S&P MidCap 400 Index, we consistently deliver strong shareholder value. Visit us at www.caci.com.

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