> Markdown version of [/jobs/ext/3883418-principal-hardware-software-engineer](https://www.wearedevelopers.com/jobs/ext/3883418-principal-hardware-software-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 Hardware Software Engineer - **Company:** Leidos, Inc. - **Location:** Annapolis Junction, MD, United States - **Salary:** $154,050.0 - $278,475.0 - **Contract:** Permanent contract - **Skills:** C++ (Programming Language), Linux, Field-Programmable Gate Array (FPGA), Signal Processing, Vivado - **Published:** October 23, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3466566834&tx=YT1414THV&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Technical Proficiency : Strong experience required for FPGA coding, Digital Signal Processing theory & application, Interfacing FPGA code with existing code bases and software; Knowledge of signal processing blocks and related DSP components, Linux OS, coding ability in C and C++. * Qualifications : Bachelor's degree plus 8 years of relevant experience or equivalent. * Security Clearance : Candidates must possess an active TS/SCI with Polygraph to be considered for this role. * Desirable Skills : Additional experience with Vivado required; experience with Epiq Solution PDK preferred. ## Description * Mission Focus : Candidate is expected to implement DSP and associated technical components in FPGA for code base integration.