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Senior Software Defined Radio (SDR) Engineer

Senior Software Defined Radio (SDR) Engineer

Leidos

Arlington, VA • On-site

$107.90K - $195.05K/yr

Full-time

Posted 10 days ago

Leidos rating

8.4

Company rating: 8.4 out of 10

Based on 146 frontline employees who took The Breakroom Quiz

57th of 425 rated business services

Job description

Today, Electronic Warfare (EW) is a growing enterprise - protecting the warfighter and our national security against ever-adapting threats. Our division currently has an exciting opportunity for a Software Defined Radio (SDR) Engineer to perform design, development, and hardware/software integration in Arlington, VA for the Electronic Warfare Division.
Our division primarily focuses on research & development and advanced prototyping, transforming state-of-the-art signal processing algorithms into real-time software systems deployed on advanced RF platforms.
The successful candidate will be an individual contributor responsible for designing, developing, and integrating high-performance SDR solutions using Ettus Research USRP platforms. This role requires expertise in real-time RF signal processing, low-latency streaming architectures, and software development close to the hardware layer. The ideal candidate is comfortable building production-grade SDR systems from the ground up and optimizing them for demanding operational environments.
Primary Responsibilities
  • Design, develop, and deploy advanced SDR systems using Ettus Research USRP hardware
  • Develop high-performance SDR applications using:
    • C++
    • UHD (USRP Hardware Driver)
  • Implement and optimize:
    • Real-time DSP pipelines
    • Custom waveform generation
    • Modulation/demodulation chains
    • RF streaming architectures
    • High-throughput signal processing systems
  • Interface directly with:
    • FPGA-based SDR architectures
    • High-speed Ethernet transport layers
    • RF front ends and synchronization systems
  • Develop software for low-latency and real-time RF applications
  • Perform RF system integration, testing, calibration, and troubleshooting
  • Analyze and optimize:
    • Spectral performance
    • Timing synchronization
    • Throughput bottlenecks
    • RF impairments
  • Integrate SDR platforms into larger communications, sensing, or EW architectures
  • Produce technical documentation, interface definitions, and software architecture artifacts
  • Support lab and field testing activities, travel up to 15%

Basic Qualifications
  • Bachelor's degree in:
    • Electrical Engineering
    • Computer Engineering
    • Computer Science
    • Related technical discipline
  • Must have 8+ years of expereince including strong hands-on experience with:
    • Ettus Research USRP platforms (X310/X410, N320/N321, X440, B-Series platforms)
  • Strong proficiency in:
    • Modern C++
    • Python
    • Linux systems programming, including Linux performance optimization
    • Multithreaded and concurrent software architectures
  • Experience deploying systems with Red Hat Linux
  • Experience developing with:
    • UHD API
    • Real-time streaming systems
    • High-rate packet processing
    • Socket programming
    • Low-latency software architectures
    • Ettus RF Network On Chip (RFNoC) architecture
  • Strong understanding of:
    • RF fundamentals
    • Wireless communications systems
    • IQ signal processing
    • Digital modulation techniques
    • Wideband RF architectures
    • Spectrum analysis
  • Experience implementing:
    • OFDM
    • QPSK/QAM
    • Channel estimation
    • Synchronization algorithms
    • FFT/channelization pipelines
    • Adaptive filtering
    • Signal detection and classification
    • Time/frequency synchronization
  • Position requires an active Secret security clearance or the ability to obtain and maintain one

Preferred Qualifications
  • Experience with:
    • Electronic Warfare (EW)
    • SIGINT/ELINT systems
    • Tactical communications
    • Spectrum operations
    • Radar or RF sensing systems
  • Familiarity with:
    • Xilinx FPGA architectures
    • Vivado
    • Verilog/VHDL
    • Hardware acceleration pipelines
  • Experience with:
    • 10/40/100 GigE transport
    • GPSDO/PPS synchronization
    • Distributed SDR architectures
    • Real-time operating systems
  • Familiarity with:
    • MIMO systems
    • Beamforming
    • SATCOM architectures
  • Active Top Secret clearance preferred

Desired Traits
  • Strong systems engineering mindset
  • Ability to troubleshoot complex RF/software interactions
  • Comfortable working directly with hardware in lab and field environments
  • Capable of building production-grade SDR software from the ground up
  • Strong debugging, optimization, and performance tuning skills
  • Self-starter capable of operating in fast-paced R&D environments

NKE
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:
May 21, 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 $107,900.00 - $195,050.00
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.

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About Leidos

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At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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