Sr Principal Engineer Software (Software Systems Engineer)

Designing modeling and maintaining a complex software-intensive system, this engineer will assist and direct the creation of test plans, automating tests, and ensuring that the software functions per the requirements specification. Thorough understanding of software development lifecycle (SDLC) Work with stakeholders to identify, document, and refine software requirements, turning business needs into actionable technical specifications. Experience with test automation tools and frameworks Defining project scope, establishing change management processes, and ensuring requirements are clear and testable Collaborating with architects and developers to translate user needs into system architecture and design Managing the software and systems Models as well as documentation (e.g., user stories, SRS documents) and facilitating review sessions. Strong problem-solving and analytical skills Evaluating, prioritizing, and managing requirements effectively Experience with requirements management and tracking systems (e.g., DOORS) Experience with defect tracking systems (e.g., Jira, Bugzilla) Review, analyze, and incorporate technical requirements into end-to-end system architectures to include testing and documentation of results Willingness to work Temporary/short-term off-peak hours assignments for time constrained HW/SW integration efforts Ensure software and integration best practices Ability to obtain and maintain a DoD secret security clearance and Special Program Access is required. (Senior Principal Engineer Software) bachelor's degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline from an accredited university and 8 or more years of experience in software engineering OR a Master's degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline and 6 or more years of experience in software engineering or a PhD with 4 or more years software engineering experience. Experience with standard MBSE (Model-Based Systems Engineering) strategies Experience with Agile software development Experience with developing, maintaining and usage of standardized modeling languages like UML, SysML (Cameo EA), and SysML v2 to visualize system structure and behavior Experience with software testing, defect reporting, configuration management and debugging using industry standard tools and processes Experience with the Atlassian tool suite, plugins, Git, Jira and Confluence for planning and management of teams Experience converting standard document design into a Cameo Model The ability to obtain and maintain an active U.S. Government DOD Secret Clearance Must have the ability to obtain and maintain special program access Active certification at DOD 8570 IAT Level II (Security+) Experience with formal software test and Weapon System evaluations US citizen with a current in-scope DoD secret or higher clearance Currently the holder of a special program access Full software development life cycle experience Experience with engineering model maintenance and integrity Experience with Requirements traceability and integration into MBSE models Experience with decomposition of SSS and SSDS level requirements into Software level SRS level requirements Experience bridging and merging a Systems level MBSE model with a Software based MBSE model