CACI International

Wireless Protocols Software Engineer

CACI International$69K — $141K *
Telecommunications & Hardware
Less than 5 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's or higher in Computer Science, Electrical Engineering, or equivalent technical degree, or 4+ years of relevant experience in lieu of a degree
  • 2-4 years of experience in related fields
  • Familiarity with Signal Processing or Digital Signal Processing (DSP)
  • Proficiency in C/C++ programming, preferably with project examples
  • Experience with Linux-based software development
  • Strong communication skills and ability to understand technical specifications
  • Previous involvement with wireless protocols (3GPP, IEEE, ITU/ETSI standards)

Responsibilities

  • Define, design, implement, and test components of wireless protocol stacks
  • Participate in systems-level engineering discussions for software optimization
  • Assist internal and external customers integrating solutions into various applications
  • Debug, test, and validate capabilities through unit tests and user scenarios
  • Travel to customer sites and other locations as needed, typically up to 15% of the time

Benefits

  • Comprehensive healthcare and wellness benefits
  • Financial and retirement planning resources
  • Family support services
  • Continuing education opportunities
  • Flexible work-life balance options including hybrid work
  • Generous time off policies
Full Job Description
Job Title: Wireless Protocols 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: 11/30/2026

The ideal candidate for this position will have some previous experience in implementing digital signal processing (DSP) and physical layer (PHY) algorithms into real world applications.  Multiple vacancies are posted for this position across various junior, mid-level, and expert levels of experience.


This is an on-site position with hybrid work arrangements considered at any of the referenced locations.

More About the Role:

  • Define, design, implement, and test components of wireless protocol stacks, ranging from physical layer (PHY) 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.
  • 2-4 years of related experience in an industry environment.
  • Experience with Signal Processing or DSP.
  • Experience writing software for Linux-based operating systems
  • C/C++ programming experience (or proven ability in an alternate object-oriented language) 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
  • Previous experience with wireless protocols (e.g., 3GPP cellular protocols, IEEE wireless standards, and/or ITU/ETSI-defined mobile radio standards).

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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.

Since this position can be worked in more than one location, the range shown is the national average for the position.

The proposed salary range for this position is:

$69,100-$141,500

About CACI International

CACI International Inc is a multinational professional services and information technology company. It provides services to many branches of the federal government including defense, homeland security, intelligence, and healthcare. CACI has approximately 23,000 employees worldwide. The company's mission is to provide enterprise and mission technology services and solutions that best fit the needs of its customers. CACI has been named a Fortune World's Most Admired Company, a Washington Post Top Workplace, and a Forbes Best Employer for Diversity.
Learn more about CACI International
Size
22,000 employees
Market Cap
$7.1 billion
Industry
Net Income
$374.4 million
Founded
1962
5 Year Trend
+7.3%
Revenue
$5.8 billion
NASDAQ

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