Leidos is seeking a Software Architect who will focus on program CAS & FOSS as well as Infrastructure for full stack web applications. The CAS, FOSS, and Infrastructure Architect will join with other architects to provide high level design, process, and technical guidance to a team supporting development environments across a portfolio of Air Traffic Control programs, including the Federal Aviation Administration's (FAA) En-Route Automation Modernization (ERAM) system.
ERAM is the heart of the Next Generation (NextGen) Air Transportation System and the pulse of the National Airspace System, helping advance our transition from a ground-based system of air traffic control to a satellite-based system of air traffic management.
Responsibilities include ownership and execution of the engineering review process for software licenses; coordination and maintenance of the Software Architecture Document describing the environment and configuration of program COTS/FOSS; ownership of database architecture for web applications; hands-on database management; and ability to lead and guide others in database update activities.
Primary Responsibilities
Maintain software architecture document (SWAD) for ERAM operational, operational support, and factory environments.
As CAS SWAD owner ensure CAS/FOSS data records are up to date
Familiarize with the CAS/FOSS in the system to accumulate some expertise on how they are used within the system
Familiarize with system architecture in an effort to accumulate expertise for suggesting new CAS/FOSS for future SIGs
Participate in SIG/PRED preparation and reviews impacting CAS/FOSS
Consult as needed with software on design/implementation of solutions including CAS/FOSS
Participate in End Of Life assessment activities
Shepherd FOSS process and be FOSS manager approver
Shepherd NDI process and own NDI documentation
Monitor licensing of CAS/FOSS and coordinate with legal as needed
Interact with other programs to share best practices with regard to CAS/FOSS
Monitor security and problem reports for system CAS/FOSS
Determine whether CAS/FOSS has any limitations with regard to distribution to the FAA
Create keys and CSRs and maintain SSL certificates using OpenSSL.
Perform web application and database server maintenance on RHEL servers within the Gaithersburg and remote environments.
Separate bullet: Architect the maintenance and enhancement of web server configuration (Tomcat, Nginx) and RHEL server configuration using Ansible playbooks.
Handle software installation, software configuration, software updates, certificate and service account management, and DBA activities in MySQL, PostgreSQL, and Oracle SE.
Basic Qualifications
Preferred Qualifications
ATMC
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Original Posting:
May 12, 2026
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
Pay Range $131,300.00 - $237,350.00
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) 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.