Senior Signal Processing Engineer

Push the boundaries of signal processing. Advance the future of Electronic Warfare.

Adversary emitters adapt faster than fielded systems can keep up. Waveforms are agile, spectrum is congested, and the signals that matter are often buried in noise, interference, and clutter. Leidos' Electronic Warfare Division builds the signal collection, processing, and dissemination systems that pull actionable information out of that environment, in support of the warfighter and national security.

We're looking for a Senior Signal Processing Engineer who wants to work on these problems at the algorithm level, then take solutions from simulation to the lab to the field. You'll do more than apply existing solutions: you'll develop innovative algorithms and help shape the next generation of EW capabilities.

What you'll do

• Develop novel algorithms for extracting information from signal sensors, in both time-series and spectral domains
• Build performance simulations and validate results against synthetic and real collected data
• Lead lab-based and field testing, and see your work run on real hardware and real signals
• Serve as technical team lead on multi-disciplinary teams, setting technical direction across one or more projects
• Shape what we pursue next by developing technical solutions and new ideas for capture efforts such as BAAs and RFPs
• Brief results to your team, leadership, and government customers, and build direct relationships with the people who use what you build

Basic qualifications

• U.S. citizenship with an active Secret clearance and the ability to obtain a TS/SCI clearance
• Bachelor's degree with 12+ years of relevant experience, or Master's degree with 10+ years
• Proficiency with tools such as MATLAB, Python, Linux, Mathematica, and Simulink, and languages such as C/C++ or Java
• Strong foundation in digital filtering, spectral estimation, detection and estimation theory, linear algebra, and stochastic processes
• Experience in EW, SIGINT, and/or radar systems
• Demonstrated success leading small multidisciplinary technical teams or projects
• Strong analytical, problem-solving, and communication skills, with the ability to work independently and collaboratively

Preferred qualifications

• PhD in a relevant technical discipline
• Experience in an R&D environment
• Experience supporting business development and capture, including technical proposals and white papers

Why Leidos

Challenging problems, advanced technology, and real-world impact. You'll apply your expertise to meaningful national security challenges while growing as an engineer and technical leader.

• 4+ weeks of paid time off and 11 paid holidays
• 401(k) with a 6% company match and immediate vesting
• Flexible schedules
• Employee Stock Purchase Plan
• Technical upskilling and professional development
• Education and training support
• Paid parental leave

Ready to make your mark in Electronic Warfare?

If you're energized by difficult technical challenges and want to help shape the future of EW, we want to hear from you.

NOTE: for this position the salary range will be $180,000 - $270,000 for qualified candidates with an active clearance and the ability to obtain a TS/SCI clearance. Must be able to work onsite in our Arlington, VA or San Diego, CA offices.

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ElectronicWarfare

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

October 26, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $131,300.00 - $237,350.00

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.