Principal Software Engineer

The RF Design Software Engineer will play a critical role in the design development and testing of Azures complex PCBs and PCBAs. This individual will work with the HW design engineering team in the design development and testing of complex RF and mixed signal circuit boards from prototype to full rate production.

RF Design Software Engineer DSP Xilinx & Embedded Linux

Key Responsibilities:

• Design implement and optimize DSP algorithms for RF applications such as modulation/demodulation filtering FFTs channelization and digital down/up conversion.
• Develop and maintain embedded Linux applications using PetaLinux on Xilinx SoC platforms.
• Interface embedded software with FPGA logic using AXI DMA interrupts EMIO and memory-mapped peripherals.
• Communicate with and control programmable RF devices including:
  • RF attenuators
  • PLLs and frequency synthesizers
  • Programmable gain amplifiers
  • RF upconverters and downconverters
  • High-speed RF ADC and DAC devices
  • Interface and control of ADC/DAC JESD information for signal processing.
• Implement and debug SPI I²C GPIO and register-level control interfaces.
• Support JESD204 (A/B/C) link bring-up in coordination with FPGA and hardware teams.
• Perform system bring-up debugging calibration and performance optimization.
• Collaborate with RF FPGA hardware and systems engineers on architecture and requirements.
• Validate designs using RF lab equipment (spectrum analyzers signal generators oscilloscopes VNAs)
• Document software algorithms interfaces and test procedures
• Write low level firmware for board level controls via FPGA and/or microcontroller in VHDL and/or C/C.

Required Experience:

• Ability to obtain security clearance.
• 4-year degree in college in an engineering discipline.
• 10 years of electronics design experience.
• Experience with RF transceivers (e.g. Analog Devices AD936x AD908x or similar)
• FPGA design experience using Vivado and/or Vitis
• Understanding of Digital Electronics and able to follow Schematic diagrams.
• Familiarity with AXI interconnects DMA engines and high-throughput data paths
• Experience with spidev IIO frameworks or custom Linux drivers
• Knowledge of GNU toolchains cross-compilation and Yocto-based workflows
• Understanding of wireless or SDR systems (LTE 5G Wi-Fi radar or custom waveforms)

Optional Experience:

• Experience working with Cadence tools including schematic design with OrCad.
• Experience writing Interface Control Documentation or high-level design documents.
• Experience writing automated test code and control of external test equipment.
• Familiarity with PIC microcontrollers.
• Knowledge of STM32 ARM microprocessors and software development.
• Able to use test equipment such as an oscilloscope and/or logic analyzer in the debug of device control interfaces.
• GUI design experience in C# or CC for PC control and test application development.

What You Can Expect:

A culture of integrity.

At CACI we place character and innovation at the center of everything we do. As a valued team member youll be part of a high-performing group dedicated to our customers missions and driven by a higher purpose to ensure the safety of our nation.

An environment of trust.

CACI values the unique contributions that every employee brings to our company and our customers - every day. Youll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.

A focus on continuous growth.

Together we will advance our nations most critical missions build on our lengthy track record of business success and find opportunities to break new ground in your career and in our legacy.

Pay Range:

There are a host of factors that can influence final salary including but not limited to geographic location Federal Government contract labor categories and contract wage rates relevant prior work experience specific skills and competencies education and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI you will receive comprehensive benefits such as; healthcare wellness financial retirement family support continuing education and time off benefits.

The proposed salary range for this position is: