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60 Str Senior Software Engineer Jobs Hiring in VA

STR

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

STR is a technology company specializing in advanced research and development for defense, intelligence, and national security. They are seeking experienced Senior Software Engineers to join their ...

STR

Senior Software Engineer

Arlington, VA · On-site

$155K - $195K/yr

About the Team STR's Intelligence Division researches and develops advanced analytics and machine ... The Role As a Senior Software Engineer , you will leverage your skills in systems and software ...

STR

Senior Software Engineer

Arlington, VA · On-site

$155K - $195K/yr

About the Team STR's Intelligence Division researches and develops advanced analytics and machine ... The Role As a Senior Software Engineer , you will leverage your skills in systems and software ...

STR

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

STR is a technology company focused on advanced research and development for defense, intelligence, and national security. They are seeking experienced Senior Software Engineers to join their cyber ...

STR

Senior Software Engineer

Arlington, VA · On-site

$134K - $184K/yr

STR is hiring experienced Senior Software Engineers to join our multidisciplinary cyber/networking team committed to developing cutting-edge technologies that have an immediate and significant impact ...

STR

Senior Software Engineer

Arlington, VA · On-site

$134K - $184K/yr

STR is hiring experienced Senior Software Engineers to join our multidisciplinary cyber/networking team committed to developing cutting-edge technologies that have an immediate and significant impact ...

STR

Senior Software Engineer

Arlington, VA

$134K - $184K/yr

STR is hiring experienced Senior Software Engineers to join our multidisciplinary cyber/networking team committed to developing cutting-edge technologies that have an immediate and significant impact ...

STR

Senior Software Engineer

Arlington, VA

$155K - $195K/yr

About the Team STR's Intelligence Division researches and develops advanced analytics and machine ... The Role As a Senior Software Engineer , you will leverage your skills in systems and software ...

STR

Autonomy Algorithms Software Engineer

Arlington, VA · On-site +1

$115K - $145K/yr

STR's Analytics & C2 (AC2) Division develops novel technologies to solve challenging national ... As an Autonomy Software Engineer, you will work as part of a tightly knit team to design, develop ...

STR

Autonomy Algorithms Software Engineer

Arlington, VA · On-site

$115K - $145K/yr

STR's Analytics & C2 (AC2) Division develops novel technologies to solve challenging national ... As an Autonomy Software Engineer, you will work as part of a tightly knit team to design, develop ...

STR

Autonomy Software Engineer

Arlington, VA · On-site

STR is a growing technology company focused on advanced research and development for defense and national security. The Autonomy Software Engineer will work within the SAAM group on autonomy ...

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Infographic showing various Senior Software Engineer job openings at Str in Virginia as of August 2026, with employment types broken down into 100% Full Time. Highlights an 82% Physical, 2% Hybrid, and 16% Remote job distribution.

Senior Software Engineer

STR

Arlington, VA • On-site

$141K - $186K/yr

Full-time

Re-posted 27 days ago

Job description

Job Summary:
STR is a technology company specializing in advanced research and development for defense, intelligence, and national security. They are seeking experienced Senior Software Engineers to join their multidisciplinary cyber/networking team, focusing on developing cutting-edge technologies that enhance data communications and networking solutions.
Responsibilities:
• Collaborate closely with a small, dedicated research team to develop innovative solutions to complex problems
• Take ownership of significant features or components of projects and deliver them with minimal supervision
• Lead technical discussions, guide architectural decisions, and mentor junior engineers
• Develop and test novel software solutions spanning research, development, and deployed production systems
• Analyze and improve existing designs and processes to optimize performance
• Deliver high-quality software in a rapid-paced, research-focused team environment
• Develop operational prototypes for experimentation and performance analysis
• Create customer-facing operational systems, ensuring they meet high reliability and usability standards
Qualifications:
Required:
• This position requires the ability to obtain a Top Secret (TS) security clearance, for which U.S. citizenship is required by the U.S. Government
• 5+ years of experience in relevant software engineering roles
• Proficient in Python, C, C++, or similar interpreted or low-level programming languages
• Experienced with designing and implementing open architectures and rapid prototyping methodologies
• Strong working knowledge of software testing, evaluation best practices, and industry-standard development lifecycles
• Significant hands-on experience developing software with GNU/Linux toolchains using open-source software
• Deep understanding of networking principles, including the 5-layer OSI networking stack
• Strong team player with excellent communication skills, both verbal and written
• Bachelor's (or higher) degree in Computer Science, Electrical & Computer Engineering, Applied Mathematics, or a related field, with at least 5 years of relevant experience or equivalent expertise gained through prior roles
Preferred:
• Active Top Secret (TS) Security Clearance
• Advanced experience in Python, MATLAB, and/or other high-level programming languages
• Proven ability to build, deploy, and maintain production-ready software systems
• Experience writing software in a multi-party, large-scale codebase
• Demonstrated success managing technical challenges in experimental/laboratory environments, including performing quantitative analysis
• Familiarity with multi-threaded or multi-core real-time operating concepts
• Knowledge of high-level software architecture design and scalability principles
• Demonstrated leadership abilities, including mentoring junior staff and contributing to team efficiency
Company:
STR is built on people & technology platforms tackling tough problems in cybersecurity, distributed sensing & artificial. Founded in 2010, the company is headquartered in Woburn, USA, with a team of 501-1000 employees. The company is currently Late Stage.

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