Senior Principal Software Engineer (REQ 352)

OverviewWe are seeking a Senior Principal Engineer to join our team in Arlington, VA. Candidates should hold a BS (15+ years), MS (12+ years), or PhD (9+ years) with a proven record of leading high-complexity, high-impact proposals and projects. You will architect cross-program capabilities and drive strategic initiatives.Our environment emphasizes innovation, high technical standards, and an entrepreneurial mindset. Team members are encouraged to contribute ideas, take ownership of their work, and help shape solutions to complex national-level challenges.Job Functions And ResponsibilitiesArchitect cross-program communications and networking capabilities with strategic impactLead the most complex command-and-control interfaces, simulations, and visualizations spanning organizationsChampion advanced algorithms for signal processing, autonomy, and embedded systems; set company-wide standardsDirect integration strategies for distributed or real-time systems across programs; ensure robust performanceLead high-impact proposal efforts and strategic initiatives; influence technical roadmaps company-wideRequired Skills and AttributesBS or MS in computer science, engineering, applied math/physics, or a related fieldFluency in C++, Rust, Python, or other modern programming languagesExperience developing on Linux platformsExperience using modern software engineering tooling, such as git, CI pipelines, Docker, Kubernetes, and UnityStrong understanding of software design principles and user experience considerationsAbility to obtain and maintain a U.S. Department of Defense Secret Security ClearancePreferred Skills and AttributesBackground or interest in autonomy, networking, embedded systems, or communications theoryFamiliarity with IP/TCP/UDP networking and serial communication protocolsExperience with NoSQL databases (e.g., MongoDB)Experience with Zynq SoC platforms, microcontrollers, FPGAs, VHDL, or embedded developmentExperience with autonomy or robotics frameworks such as ROSExperience with numerical algorithms, modeling, or real-time systemsFluency with TypeScript and front-end web development frameworks such as React, Angular, or VueAPS, a wholly owned subsidiary of the General Dynamics Corporation, offers competitive salaries, excellent benefits, and comfortable working conditions. Candidates must possess or be able to obtain a DoD security clearance. Please note, obtaining a security clearance is a condition of employment which typically requires US citizenship and a thorough background investigation.Qualified applicants are invited to submit a resume and application online at www.aphysci.com, fax them to 860-495-1744, Attn: Human Resources, or mail to the company address. Please reference the requisition number and title of the position in the subject line of your submission.EOE: Vet/DisabilityInvitation to Self-Identify In keeping with our commitment to Equal Employment Opportunity (EEO), Applied Physical Sciences invites all applicants to self-identify pre-offer as a protected veteran.Invitation to Self-Identify as Protected Veteran Online Form