Principal Software Engineer

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Principal Software Engineer in USA

STR
Full time
Email

USA
10/09/2026
Report

Atlanta, GA

Responsibilities

Lead the technical design, development, integration, and validation of real-time RF sensor software in C/C++.
Integrate signal-processing algorithms into open-architecture software frameworks.
Define and execute integration tests and system-level validation tests.
Debug real-time, multithreaded, and distributed software systems.
Transition MATLAB and Python prototypes into optimized production C/C++ implementations.
Document software designs, test procedures, results, technical reports, integration plans, briefings, and customer presentations.
Support system demonstrations, field testing, and approximately 10% travel for integration and customer events.
Establish best practices for software quality, configuration management, test automation, documentation, and technical risk management.
Mentor junior and mid-level engineers and provide technical guidance.
Interface with government sponsors, customers, program managers, and technical stakeholders.
Contribute to proposals through technical approaches, work-breakdown planning, technical writing, cost estimation, white papers, and presentations.
Contribute to user interfaces, dashboards, and visualization tools for observability, test execution, data analysis, and integration workflows.

Requirements

Active Secret clearance with the ability to obtain and maintain a Top Secret clearance; U.S. citizenship is required by the government.
BS, MS, or PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related field.
Ten or more years of professional software development experience, including leadership of complex software development, integration, and test efforts.
Expert-level programming proficiency for high-performance, real-time applications.
Experience with Git and Linux.
Experience developing or integrating real-time software for signal-processing, embedded, distributed, or hardware-connected systems.
Demonstrated technical leadership and mentoring experience.
Experience contributing substantially to proposal efforts, technical writing, technical approaches, cost estimation, and customer presentations.
Top Secret clearance, preferably TS/SCI.
Proficiency in Python or MATLAB and experience with hands-on hardware testing or laboratory equipment.
Experience in signal processing, RF sensor-system architectures, real-time or embedded software, multithreaded programming, synchronization, open-architecture principles, user interfaces, dashboards, or visualization tools.

Benefits

Full-time salary range of $220,000-$260,000.
Approximately 10% travel for integration events, field testing, and customer demonstrations.
Work is based at one of the company’s listed locations near Boston, Arlington, Dayton, Melbourne, Carlsbad, Atlanta, or Denver.

Salary: $220k - $260k/yr

STR

STR is a technology company dedicated to advanced research and development in defense and national security. We build innovative solutions in areas like cyber technology and artificial intelligence, serving clients who prioritize safety and security. Our team combines extensive experience to deli...

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