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Sentinel Sr Principal Software Engineer

Northrop Grumman

$124,900 - $196,700
Sep 17, 2025
Colorado Springs, CO, USA • Huntsville, AL, USA
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Northrop Grumman is seeking a Sr Principal Software Engineer to support the Sentinel Program, working on revolutionary systems that impact people's lives around the world, and pushing the boundaries of possible across land, sea, air, space, and cyberspace.

Requirements

  • 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
  • Minimum 2 years Model-Based Systems Engineering (MBSE) experience
  • Able to create plans and standards for architecture, requirements, and design that can address selection process that accounts for providing safe, fault tolerant, and deterministic operation for critical functions.

Responsibilities

  • -Execution and Collaboration: Drive technical execution in support of major program events, collaborating within and across the Division SDS program portfolio to deliver exceptional customer value.
  • -Systems Challenges: Focus on resolving high-level systems challenges, ensuring the execution of the overall technical plan within the Integrated Master Schedule.
  • -Strategic Initiatives: Support strategic SDS Division initiatives on tools, processes, and cross-segment technical reviews, driving technical rigor into technical interchange meetings with C2 partners.
  • -Model-Based Engineering: Utilize Model-Based Engineering to deliver a highly sustainable Weapon System, advising the C2 program office on program, schedule, and technical matters.
  • -Perform requirements analysis, review and document source data for requirements, generate requirements verification, and work with suppliers and internal teams to ensure products designed meet requirements
  • -Interface with subject matter experts, analysts, architects, designers, system engineers and specialty engineers to capture Sentinel Node structure and behavior across UPDM/UAF/SysML/UML MBSE frameworks
  • -Support requirement decomposition, derivation, and traceability

Other

  • 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.
  • Travel: Yes, 10% of the Time
  • Relocation assistance may be available