Software Defined Radio Engineer, c, c++, Linux, celluar

Company: Affinity Executive Search
Location: Washington
Posted on: March 26, 2025

Job Description:

Job description:Senior Software Defined Radio Engineer, C, C++, Linux, Cellular - Job Order 3478Location: Seven Corners, VA 22044Strong C++ skillsCompensation: negotiablePermanent Residents and US citizens onlyNo contractors and no managersStock optionsRelocation allowance of up to $5KLocated in the northern Virginia, Washington, DC metro area, my client is a startup with patented communications technology that enables text messaging anywhere in the world with direct satellite to mobile device communications which does not require special dedicated receivers to operate, just your standard mobile device. Series B funding arrives in March 2025.Job SummaryMy client is developing cellular-based space payloads and seeks engineers with expertise and experience designing and developing SDR-based transceivers and custom SDR platforms. Aspects of the position require an understanding of SDR and FPGA hardware, firmware, signal processing and algorithms, and software for both transmit and receive paths.As a Senior SDR Engineer, you will support the development of SDRs for both its primary cellular service link and secondary TT and C and feeder link radio functions using a proprietary protocol. The SDRs will initially be tested in a lab environment, then on the payload prototype in a lab environment that simulates orbit operations, and finally in space. The SDR Engineer will also be responsible for implementing methods for SDR data acquisition to ensure successful testing, verification, and validation.Core Responsibilities

• The Senior SDR Engineer will be responsible for the design, development, and testing of all SDR software including its FPGA and host interface.
• Evaluating SDRs for incorporation into our payload and spacecraft systems.
• Understanding the hardware-based requirements of SDRs, such as FPGA size, speed, internal clock stability, I/O interfaces, sample rates, dynamic range, radio chip architecture, gains, and filtering as the signal progresses within the SDR.
• Designing and evaluating digital signal processing - DSP algorithms for satellite communication systems.
• Updating or creating host interface software to interact with the SDRs.
• Developing test software and drivers to support unit, integration, and system testing of all SDR software functions.
• Writing this software in C, C++, or other languages in a Linux environment.
• Working with other software team members to benchmark payload software applications.
• Testing and validating hardware blocks both in simulation and on target.
• Developing and maintaining documentation and ICDs for in-house IP blocks and other SDR related software.Qualifications:
  • A Master's degree or higher in Electrical Engineering, Computer Science, or a related field.
  • Excellent foundation in DSP and Communication Theory.
  • At least five years of recent experience working with SDRs.
  • In-depth knowledge of DSP algorithms and communication theory such as filter design, clock recovery, signal detection, channel estimation, and equalization.
  • Experience with implementing DSP algorithms in C, C++.
  • Experience with device drivers.
  • Ability to create test benches for benchmarking and testing.
  • Knowledge of PHY and MAC layers of cellular standards such as GSM, LTE, 5G is a plus.
  • Experience with implementing DSP algorithms in HDL such as SystemVerilog, VHDL is a plus.
  • Experience using lab equipment for testing and validation.
  • Experience with evaluating SDR platforms and specifications.Why is This a Great Opportunity:This is a well-funded startup with patented communications technology. Stock is part of the compensation.
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Keywords: Affinity Executive Search, Washington DC , Software Defined Radio Engineer, c, c++, Linux, celluar, IT / Software / Systems , Washington, DC