Senior Software Defined Radio (SDR) Engineer

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 systemsInterface directly with: FPGA-based SDR architectures High-speed Ethernet transport layers RF front ends and synchronization systemsDevelop 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 impairmentsIntegrate 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 disciplineMust 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 architecturesExperience 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) architectureStrong understanding of: RF fundamentals Wireless communications systems IQ signal processing Digital modulation techniques Wideband RF architectures Spectrum analysisExperience implementing: OFDM QPSK/QAM Channel estimation Synchronization algorithms FFT/channelization pipelines Adaptive filtering Signal detection and classification Time/frequency synchronizationPosition requires an activeSecret security clearanceor 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 systemsFamiliarity with: Xilinx FPGA architectures Vivado Verilog/VHDL Hardware acceleration pipelinesExperience with:10/40/100 GigE transport GPSDO/PPS synchronization Distributed SDR architectures Real-time operating systemsFamiliarity with: MIMO systems Beamforming SATCOM architecturesActive Top Secret clearance preferred Desired TraitsStrong 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 PostingOctober 13, 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 RangePay Range $107,900.00 - $195,050.00 About LeidosLeidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits: Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits. Commitment to Non-DiscriminationAll qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.