Principal Software Engineer Jobs in Fairfax, VA

Lead the charge in engineering RF-enabled enterprise systems, ensuring mission success through advanced design, integration, and sustainment of complex architectures across multi-domain infrastructure...

Unlock potential by leading the engineering and sustainment of sophisticated enterprise systems, delivering senior-level technical authority in complex RF-enabled environments and integrated Linux inf...

Take ownership of cutting-edge FPGA design and integration activities, ensuring on-time completion within budget. Mentor engineers and drive technology solutions by analyzing requirements, documenting...

Join our innovative team to lead digital transformation as a Senior Software Engineer. You'll mentor a full stack development team and drive agile practices, influencing architecture and solutions to...

Lead transformative AI initiatives by guiding teams to adopt cutting-edge technology, ensuring impactful platform improvements, and creating efficiencies across Root's organization for enhanced produc...

Lead the charge in developing scalable AI-integrated solutions, enhancing core platform capabilities, and driving complex technical initiatives within an innovative enterprise environment to empower s...

Join a team that engineers innovative backend solutions, designing scalable systems for complex transactions, while partnering across teams to establish engineering standards and support transformativ...

Lead daily operations for mission-critical systems, collaborating with diverse teams. Oversee upkeep of lab environments and ensure compliance with standards while managing infrastructure needs, hardw...

Pioneer the management of mission-critical machine rooms, ensuring operational excellence and compliance. Lead a small team in maintaining secure, organized environments while coordinating effectively...

Lead the development of innovative AI solutions, architecting and optimizing high-performance systems while mentoring engineers, driving modernization, and ensuring top code quality for enterprise-gra...

Lead the charge in developing innovative software solutions for critical infrastructure, enhancing user experience and security while collaborating with small teams on full stack applications using mo...

Lead the charge in developing and optimizing analytics services for a global mission platform, driving architecture and delivery while ensuring performance, observability, and operational readiness ac...

Engage in building and evolving a global B2B technology platform by designing secure, scalable microservices and APIs using Java and Spring Boot, while collaborating in an Agile environment to transfo...

Lead the design and development of scalable applications within a modern microservices ecosystem, collaborating with a dynamic team to enhance software solutions and tackle complex challenges in a fas...

Join a team that's shaping innovative solutions in a collaborative environment. Leverage your software engineering skills to design and develop scalable applications in a modern microservices ecosyste...

Engage with stakeholders to build impactful healthcare tools as a Senior Software Engineer. Collaborate across teams, leveraging your expertise in full-stack engineering and AI to drive meaningful out...

Lead a small scrum team to develop and enhance features in a client-focused application. Blend hands-on coding with management to ensure high-quality technical delivery and foster an AI-first engineer...

Join a high-performance engineering team to tackle complex architectural challenges, drive technical strategies, and shape AI capabilities for scalable platforms serving billions of messages in real-t...

Join a team that optimizes complex technical programs to drive AI-focused initiatives. Collaborate across product, engineering, and security to translate strategy into impactful execution, enhance cap...

Lead innovative design and reverse engineering efforts in aerospace, enhancing aircraft development through collaboration and technical expertise, while ensuring compliance with industry standards and...

Champion cutting-edge, scalable systems to drive financial automation and data integrity across Upstart's operations, ensuring the reliability and performance of critical financial workflows and pavin...

Drive innovative software solutions by developing and enhancing complex systems while ensuring optimal performance and adherence to design requirements. Collaborate with teams to tackle real-time data...

Unlock potential by leading diverse software development projects, enhancing complex systems, and utilizing cutting-edge technologies to solve impactful challenges. Collaborate with experts in a dynam...

Collaborate with engineers and scientists to design and implement innovative AI systems. Lead efforts in architecture and strategy while mentoring team members to enhance product quality and customer...

Transform engineering outcomes by leading a software team focused on C#/.NET, Azure, and Blazor development while driving crucial transitions from React applications. Deliver high-quality architecture...