Software Engineer

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

Anticipated Posting End: 6/23/2026

The Wireless Protocol Analysis Lab is looking for a new team member passionate about building the next generation of software-defined protocol processing frameworks and applications. Our team of approximately 20 engineers comprises a mix of digital signal processing experts, large-scale application developers, and wireless protocol experts who work together to create some of the most highly optimized, software-based, platform-independent protocol processing engines in the world. Our solutions, refined and advanced over two decades of development, allow for a mix of deployment options, ranging from low-power embedded SBCs to multi-core computing clusters with FPGA and GPU capabilities.

More About the Role:

• Define, design, implement, and test components of wireless protocol stacks, ranging from physical layer algorithms to layer 2/layer 3 procedures
• Contribute to systems-level engineering discussions that reconcile the various use cases for our software in pursuit of best-in-class solutions
• Work with customers (both internal and external to CACI) to help integrate our solutions into a wide variety of applications and use cases
• Debug, test, and validate our capabilities using both unit tests as well as scenarios reported by our end users
• Travel to other CACI locations and/or customer sites in the US as necessary (travel requirement is typically 0 - 15%)

What You Can Bring to Our Team:

• A drive to continuously improve and refine existing capabilities alongside new development opportunities.
• Ability to work with a distributed team and manage your time effectively across multiple, simultaneous projects.
• A strong understanding of modern C++ programming. We consider C++11 to be the minimum but love to use C++17/20 features where appropriate.
• Knowledge of wireless physical layer algorithms and their implementations, or an ability to learn and understand existing implementations.
• Code profiling experience, ability to identify critical code paths, and offer performance optimizations based on analysis over multiple scenarios.
• Experience using wireless test equipment in lab environments, including test setup design.

You’ll Bring These Qualifications:

• A bachelor’s degree (or higher) in Computer Science or Electrical Engineering or equivalent technical degree or an additional 4+ years of experience in lieu of degree.
• 5+ years of related experience
• Experience writing software for Linux-based operating systems
• C/C++ programming experience, shown through project work or code examples
• Demonstrated ability to read and understand technical specifications, and create software-based implementations of the procedures and methods described therein
• Excellent communication and interpersonal skills
• The ability to obtain and maintain and US Government Clearance at the TS/SCI level.
• Previous experience with wireless protocols (e.g., 3GPP cellular protocols, IEEE wireless standards, and/or ITU/ETSI-defined mobile radio standards).

Preferred Qualifications:

• Master’s degree in related field
• DSP
• Python
• Familiarity with virtualization technologies and containerization (e.g., Docker, KVM)

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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.