Junior Cyber Software Engineer

Aberdeen, MD

Full-time

Onsite

$70K/yr - $143K/yr

Entry Level

CACI International Inc is seeking a Junior Cyber Software Engineer to support next-generation tactical cyber infrastructure and mission-critical defense solutions. The role focuses on developing secure Rust-based software, mitigating vulnerabilities, integrating embedded and tactical systems, testing and debugging applications, and contributing to requirements, architecture, and technical documentation.

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Responsibilities

Develop clean, safe, and highly efficient code primarily in Rust, with supplemental modules in C, C++, or Go
Redesign and harden legacy software modules using memory-safe architectures to mitigate memory-corruption exploits such as buffer overflows
Support integration of software components with custom hardware, in-vehicle data networks, and tactical C5ISR communication systems
Review, debug, and test software using automated pipelines to meet strict design requirements and validate defense performance metrics
Contribute to requirements analysis, architecture development, and creation of technical documentation aligned with DoD software engineering standards

Qualification

Required

Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, or related STEM discipline
1–3 years of professional software development experience, or equivalent military / co‑op experience
Strong understanding of Rust fundamentals (safe/unsafe Rust, ownership & borrowing rules, concurrency)
Hands-on experience or working familiarity with C, C++, or Go
Proficiency with Linux environments, shell scripting, and version control using Git
Active DoD **Secret** security clearance required and must be maintained

Preferred

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**)

Benefits

Flexible time off benefit
Robust learning resources
Healthcare benefits
Wellness benefits
Financial benefits
Retirement benefits
Family support benefits
Continuing education benefits
Time off benefits

At CACI International Inc (NYSE: CACI), our 27,000 talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest challenges in national security.

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