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Principal Signals Software Engineer

Leidos

$148,850 - $269,075
Sep 22, 2025
Columbia, MD, US
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Leidos is seeking a Principal Signals Software Engineer to contribute to their National Security Sector's Cyber & Analytics Business Area, focusing on advancements in Security Engineering, Computer Network Operations, Mission Software, Analytical Methods and Modeling, Signals Intelligence, and Cryptographic Key Management.

Requirements

  • Twelve (12) years’ experience as a SSWE or equivalent on a project with a focus on Radio Frequency (RF) to include experience with Fourier transforms, filtering, communications theory, digital modulation, error control coding, signals analysis tools (e.g. WVT, DVT), and digital signal processing (e.g. adaptive beamforming/ filtering, demodulation).
  • Experience with software-defined radio architectures (e.g., SCA, REDHAWK, GNU) and commercial wireless standards.
  • Proficiency in software configuration management tools (e.g., GIT, Trac, Subversion).
  • Familiarity with Python, Eclipse IDE, Google Protocol Buffer, and model-based design tools like MATLAB or SIMULINK.
  • Knowledge of service-oriented architecture, Kubernetes, Docker, and cloud deployment (e.g., AWS).
  • Expertise in front-end technologies such as JavaScript, TypeScript, HTML, and CSS, including libraries like React, Vue, or Angular.
  • Experience working with REST APIs, WebSockets, and JavaScript 3D libraries (e.g.,Three is a plus).

Responsibilities

  • Analyze user requirements to derive software design and performance specifications.
  • Design, develop, and enhance software to add new features or improve existing functionality.
  • Debug and resolve defects in software systems.
  • Utilize signal processing techniques and digital modulation methods effectively.
  • Develop software using C++ and Java within Linux operating systems.
  • Integrate software into new or modified systems, ensuring seamless operation.
  • Lead or participate in the development and execution of test procedures for software components.

Other

  • Active TS/SCI with polygraph
  • A Master’s degree in Computer Science or a related field from an accredited institution is required, along with a minimum of 15 years of relevant experience. Alternatively, a Bachelor’s degree with at least 17 years of experience, or no degree with 19 years of directly related experience, will also be considered.
  • Background in Agile development teams and geolocation techniques.
  • Position is eligible for a $25,000 sign on bonus.