Principal Solutions Architect

Leidos is seeking a Principal Solutions Architect to join the Air Traffic Business Area within the Homeland Sector
, supporting the development of the Leidos Common Automation Platform (L-CAP) and Common Baseline. L-CAP is a mission‑critical, future‑ready automation solution built on a hybrid cloud data mesh architecture. As a member of a large‑scale, Scaled Agile software development organization, you will play a central role in shaping next‑generation air traffic automation capabilities by bridging mission needs, systems engineering rigor, and Agile software delivery.

In this role, you will serve as the Solution Architect and will use your deep expertise in service‑based architectures (SOA/microservices) to support mission‑critical programs. This role will lead the design of scalable, secure, and resilient architectures that align with federal standards, cloud‑first strategies, and zero‑trust principles, while enabling rapid delivery and modernization. This position is intended for experienced practitioners who can balance innovation with discipline in a highly regulated, safety‑critical environment.

This position is located in Gaithersburg, MD or Egg Harbor Township, NJ. This is an opportunity to contribute to projects that impact millions of air travelers.

This is a hybrid position requiring 3 days onsite and 2 days working from home.

• Lead architecture design for service-based and microservices solutions supporting federal mission systems
• Define and enforce architecture standards, reference architectures, and design patterns across programs
• Partner with program managers, engineers, and customers to translate mission needs into scalable technical solutions
• Design and guide implementation of API‑first, loosely coupled, and event‑driven architectures
• Support cloud adoption and migration efforts (AWS, Azure, GCP), including hybrid and multi‑cloud environments
• Ensure compliance with federal security requirements (e.g., NIST, FedRAMP, Zero Trust Architecture)
• Provide technical leadership in Dev Sec Ops , CI/CD pipelines, and infrastructure as code (IaC)
• Conduct architecture reviews, trade studies, and technology evaluations
• Mentor engineering teams and promote best practices in distributed systems and integration patterns
• Support capture and proposal efforts by contributing to technical volumes and solutioning

• Bachelor’s degree in Computer Science, Engineering, or related field (additional experience may be considered in lieu of degree)
• 12+ years of experience in software development or systems engineering (or 10+ years of experience with a Master's degree) and 5+ years in architecture roles
• Demonstrated experience designing and implementing service-based architectures (SOA, microservices)
• Strong experience with API design (RESTful services), service integration, and messaging frameworks
• Hands‑on experience with at least one major cloud platform (AWS, Azure, or GCP)
• Knowledge of containerization and orchestration (Docker, Kubernetes/Open Shift)
• Familiarity with Dev Sec Ops  practices, CI/CD tools, and automation frameworks
• Understanding of federal security frameworks (NIST 800‑53, RMF, FedRAMP)
• Strong written and verbal communication skills, including customer engagement
• Ability to obtain and maintain a Public Trust
• U.S. citizenship required
• Successful completion of background investigations as required by the government customer

• Experience supporting federal civilian, DoD, or Intelligence Community customers
• Knowledge of event‑driven architectures and streaming technologies (e.g., Kafka)
• Cloud certifications (e.g., AWS Solutions Architect, Azure Solutions Architect)
• Familiarity with Zero Trust Architecture and identity‑based security models
• Experience with Agile/SAFe development environments
• Background in data architecture, analytics platforms, or AI/ML integration
• Agile certifications (CSPO, SAFe POPM)

$ - $

The Pay Range is a general guideline only and not a guarantee of compensation. Additional factors considered in extending an offer include responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Original Posting:
April 24, 2026

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.