Principal Software Engineer - AI-Enabled Platforms (Remote)

About the Role

Leidos is seeking a Principal Software Engineer to join our team in a remote capacity. This is not just a maintenance role; it’s a reinvention role where you will provide technical leadership for the design and delivery of AI-enabled software platforms and developer tools that support the modernization of mission-critical systems. As a Principal Software Engineer, you will be responsible for system-level technical leadership, defining architectural direction, and resolving complex technical challenges.

What You'll Do

• Serve as the technical owner for major systems or platforms within an established strategic direction.
• Define and evolve architectural patterns, design standards, and reference implementations.
• Lead design reviews and guide teams toward sound technical decisions.
• Identify and resolve complex technical risks spanning multiple components or teams.
• Design and implement critical or high-risk components.
• Review and elevate code quality across teams through deep technical feedback.
• Lead the technical design of AI-enabled capabilities using approved models, frameworks, and platforms.
• Establish patterns for AI integration, evaluation, testing, and validation.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related technical field.
• 12+ years of relevant software engineering experience.
• Demonstrated experience leading the design of complex, distributed systems.
• Expert proficiency in two or more modern programming languages (e.g., Python, Java, Go, TypeScript).
• Deep understanding of service-based or microservice architectures.
• Proven ability to influence technical direction without formal authority.
• Strong communication skills across technical and non-technical audiences.
• Must be authorized to work in the U.S.

Nice to Have

• Experience designing or integrating AI-enabled or data-driven systems in production.
• Background in developer tools, platform modernization, or large-scale system evolution.

What We Offer

• Competitive compensation and benefits package.
• Health and Wellness programs.
• Income Protection, Paid Leave, and Retirement plans.
• Opportunities for professional growth and development.
• Work in a dynamic and innovative environment.