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# Senior DSP Engineer - TS/SCI

- **Company:** Parsons Corporation
- **Location:** Herndon, VA, United States
- **Experience:** Expert
- **Salary:** $112,200.0 - $196,400.0
- **Contract:** Permanent contract
- **Skills:** Algorithm Design, C++ (Programming Language), Channel Access Method, Signals Intelligence, Nvidia CUDA, Computer Engineering, Data Transmissions, Linux, Electronic Data Interchange (EDI), Python (Programming Language), Linux System Administration, MATLAB, Signal Processing, Git, Low Latency, X-midas, Software Version Control
- **Published:** November 6, 2026
- **Apply:** https://www.adzuna.com/details/5888744451

## About the Role

* Bachelor's degree in Electrical Engineering, Computer Engineering, or a closely related discipline; Master's degree preferred. Equivalent experience may be considered in lieu of a degree.
 * 8 years of experience required
 * U.S. citizenship
 * An active Top Secret / SCI clearance
 * Ten or more years of professional experience developing DSP algorithms for digital communications, COMINT, or closely related SIGINT applications.
 * Deep working knowledge of communications theory: modulation and coding, multiple access, synchronization, estimation and detection, channel models, and link-budget fundamentals.
 * Hands-on experience demodulating and exploiting communications waveforms used for command-and-control and data exchange among surface, airborne, and space assets-not limited to a single band or access method.
 * Proficiency in implementing signal processing in C/C++ and Python in Linux environments; version control with Git.
 * Experience with at least one mission-relevant framework or environment such as MATLAB, GNU Radio, or X-Midas.
 * Demonstrated ability to work from raw I/Q through bits and recoverable protocol structure under operationally realistic impairments.

Security Clearance Requirement:
An active Top Secret SCI security clearance is required for this position.

## Description

Seeking a Senior DSP Engineer to design, implement, and field advanced processing chains for communications signals of interest (SOIs) across terrestrial, airborne, maritime-surface, and space segments. The role centers on detection, characterization, demodulation, and exploitation of tactical and strategic data-bearing waveforms in congested, contested, and degraded electromagnetic environments. Work spans algorithm development through operational software deployed against collected I/Q from wideband receivers and software-defined radios., * Architect and implement DSP pipelines for detection, classification, parameterization, and tracking of communications signals across HF through Ka-band collections.

 * Develop synchronization, carrier and symbol recovery, equalization, and demodulation algorithms for both well-documented and poorly characterized waveforms, including frequency-hopped, spread-spectrum, and low-probability-of-intercept / low-probability-of-detection constructions.
 * Recover payload bits and reconstruct higher-layer structure from tactical and strategic data links, including line-of-sight, beyond-line-of-sight, and satellite communications carriers (protected and commercial).
 * Design multi-rate channelizers, polyphase filter banks, and wideband front-end processing suitable for high-occupancy spectrum and mixed narrowband / wideband collections.
 * Characterize and mitigate real-world impairments typical of long-range and over-water paths: Doppler from moving platforms, multipath, co-channel interference, phase noise, IQ imbalance, and low SNR.
 * Perform SOI development and waveform discovery against unidentified or evolving communications systems; produce reusable signal models, feature sets, and processing recipes.
 * Implement and optimize algorithms in C/C++ and Python on Linux, with GPU/CUDA or equivalent acceleration where throughput or latency requires it; integrate with SDR hardware and existing mission processing frameworks.
 * Validate processing chains against laboratory-generated and field-collected I/Q using quantitative metrics (detection probability, false-alarm rate, EVM, BER, protocol decode success).
 * Support end-to-end integration with RF front ends, collection systems, and downstream analytic or C2 consumers; contribute to lab, ground, and occasional field test events.
 * Mentor junior engineers, review designs, and translate operational collection needs into technical requirements and processing architectures.
 * Document algorithms, interfaces, and performance so capabilities can be sustained and transitioned.