Sr. Principal Software Engineer: 8 Years with Bachelor's in related field of study, 6 Years with Masters, 4 Years with PhD or 04 additional years in lieu of a degree. US Citizenship with Active DoD Secret clearance with a reinvestigation date occurring in the last 6 years. Ability to obtain Special Program Access (SAP). Ability to team plan, execute, and manage the technical scope, and support leadership planning. Current understanding of software engineering best practices Experience in software engineering, system design, software requirements, and test Experience with Agile and working in a cross-functional Scrum team. Experience performing Safety Critical Functional Thread Analysis (SCFTA) Experience designing for and writing requirements for Safety Critical Functions Experience with USAF Nuclear Surety (AFMAN91-119) and/or Cyber Certification Experience integrating multiple engineering specialties and stakeholders across multiple Integrated Product Teams and Suppliers Experience leading requirements, design, and integration of complex systems Detailed knowledge of the Command and Launch system and mission objectives SysML Model Builder Fundamental Certification Experience with verification planning and system buildup for Flight Tests Experience using Model Based Product Line Engineering Concepts Experience with the Atlassian Tool Suite including Jira and Confluence and working in a cross-function Scrum team. Experience performing Safety Critical Functional Thread Analysis (SCFTA) Experience integrating multiple engineering specialties and stakeholders across multiple Integrated Product Teams and Suppliers Ability to establish a Software Requirements Peer Review Process and verification plans that include identification of all artifacts required for peer review.