> Markdown version of [/jobs/ext/4297978-principal-digital-hardware-engineer](https://www.wearedevelopers.com/jobs/ext/4297978-principal-digital-hardware-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Digital Hardware Engineer - **Company:** RTX - **Location:** Madison, AL, United States - **Experience:** Expert - **Salary:** $107,500.0 - $204,500.0 - **Contract:** Permanent contract - **Skills:** Digital Electronics, Ethernet, Field-Programmable Gate Array (FPGA), Hardware Design, PCI Express, Schematic Capture, Signal Integrity, Universal Asynchronous Receiver/Transmitter, Serial Peripheral Interface, Mentor Graphics - **Published:** October 2, 2026 - **Apply:** https://www.disabledperson.com/jobs/75673374-principal-digital-hardware-engineer ## About the Role The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, * Typically requires a Bachelor's Degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience * Minimum of eight (8) years engineering digital circuit design experience * Experience in the development and design of electronic circuit designs, and/or multi-assembly system/unit design * The ability to obtain and maintain a US security clearance prior to the start date. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance., * Experience in taking design concepts from block diagram or requirements level to development of complete hardware designs, with verification via test and integration * Experience with PCB design process and expertise with design tools (schematic capture) to analyze and simulate designs prior to hardware execution * Experience using Mentor Graphics Design Creation (Siemens EDA) tools: DxDesigner, xDX Designer VX, and/or Expedition * Experience using PCB electronic circuit design software: HyperLynx signal integrity, power integrity and analog simulation, and/or Xpedition Enterprise (xPCB) ## Description The Principal Electrical Engineer is responsible for the design, analysis, simulation, test, and integration of digital electronic modules and/or CCAs for missile applications. The candidate should be experienced in all aspects of circuit card design including hardware designs with processors, FPGAs, memory, and industry interfaces, such as PCIe, Ethernet, I2C, SPI, and UART.