Signal Processing Engineer

Leidos is seeking an underwater acoustic Signal Processing Engineer to lead cutting-edge development and testing efforts within the Maritime Systems portfolio. This role is a unique opportunity to drive innovation in acoustic systems installed on underwater vehicle systems or other deployments of sensors that support critical defense and national security missions. You will contribute to a multidisciplinary team developing advanced maritime technologies, ensuring system reliability and performance from prototype design to full-scale system deployment for ongoing Navy missions. Leidos’ Maritime business area is a recognized leader in C4ISR technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms. We’re known for achieving “industry firsts” in the most challenging maritime domains. Join us and be part of a world-class team delivering unmatched solutions for today's most pressing maritime missions.

Primary Responsibilities

• Lead the acoustic test of systems from bench testing, to tank testing, to open water testing.
• Test and Validate: Develop and execute comprehensive test plans, procedures, and protocols to ensure system functionality, reliability, and compliance with requirements.
• Hands-On Testing: Perform hands-on testing, validation, and verification of software and hardware systems, including integrated electro-mechanical systems.
• Collaborate: Work closely with systems engineers, software developers, and hardware teams to identify and resolve issues during testing phases.
• Automate Testing: Develop automated testing frameworks and tools to streamline validation processes.
• Analyze Results: Document and analyze test results, providing detailed reports and recommendations for system improvements.
• Support Development: Ensure a “design for testing” focus during system development and integration.
• Mentor Team: Guide and mentor a matrixed team of engineers through testing phases of the product lifecycle

Basic Qualifications.

• Bachelor’s degree in Engineering (Systems, Mechanical, Electrical, Software, Ocean), Computer Science, Physics, or Math with 4-8 years of experience.
• 4+ years of hands-on experience in underwater acoustic systems: use of acoustic test equipment, development of signal processing and software for acoustic systems, execution of test, and data analysis in Matlab/Python.  
• Strong software background, including Linux experience and experience with testing frameworks, scripting languages, and automation tools.
• Proficiency in test automation, data acquisition systems, and hardware-in-the-loop testing.
• Excellent problem solving skills and ability to troubleshoot complex technical issues.
• U.S. Citizenship with a current SECRET security clearance.

Preferred Qualifications.

• Experience with operational acoustic systems.
• Experience in C++ software development, use of software repositories, and in following configuration management best practices.
• Master’s degree in Engineering (Systems, Mechanical, Electrical, Software, Ocean), Computer Science, Physics, or Math.
• Familiarity with UUVs, deployed subsea systems, and underwater payloads.
• U.S. Citizenship with a current TOP SECRET clearance.

Come break things (in a good way). Then build them smarter.

We're the tech company everyone calls when things get weird. We don’t wear capes (they’re a safety hazard), but we do solve high-stakes problems with code, caffeine, and a healthy disregard for “how it’s always been done.”

Original Posting:

December 29, 2025

Pay Range:

Pay Range $87,100.00 - $157,450.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.