Sr. Principal Systems Engineer – (Satellite/Space Systems)

Requisition ID: 21003377

  • Category IconCategory: Engineering
  • Location IconLocation: Dulles, Virginia
  • Citizenship IconUS Citizenship Required for this Position: Yes
  • Clearance IconClearance Type: None
  • Telecommute IconTelecommute: No –Teleworking not available for this position
  • Shift IconShift: 1st Shift
  • Travel IconTravel Required: No
  • Positions IconPositions Available: 1

Embark on a career putting innovative, reliable, and agile products and ideas into orbit and beyond. Northrop Grumman has opportunities waiting for you that play a vital role in human space exploration, national defense, and scientific discovery, supporting multiple programs across the universe. With us, you'll discover a culture of curiosity and collaboration that will have you Defining Possible from the day you start. Our space systems connect and protect millions of people on Earth every day, now and for the future. Explore your future and launch your career today.

This Systems Engineer role is located in either Dulles, VA or Gilbert, AZ, supporting our Civil and Commercial Satellites programs that include technical roles at the mission, segment, and space-vehicle levels. They span the entire program life cycle from early concept studies, design development, system integration/test, launch and early operations, mission operations/sustainment, and system disposal. Programs range from small feasibility studies to medium-sized on-orbit technology demonstrations and large-scale national systems. Successful candidates for this position will work in a technical role for a space program in Dulles, VA, in the Civil and Commercial Satellites business area within the Tactical Space Systems Division. Model-Based Systems Engineering (MBSE) is gaining more visibility as the preferred systems engineering approach for space system architects and engineers within both industry and government. The selected candidate will be responsible for leading system modeling efforts performed by multi-disciplinary teams for the Human Landing System (HLS) program, by maturing the descriptive system model of the Transfer Element (TE) & building a cadre of capable systems & software engineers that can perform their responsibilities “in the model”. This position utilizes abilities to interact in an organized and solutions-oriented manner, with external entities who are contributing elements of the Human Landing System (HLS). Duties:
  • Maintain and evolve program descriptive-system models, supporting program profiles/repositories (re-usable model libraries/patterns, design patterns, product architecture, and design-artifact templates) to enable efficient implementation of program model-based systems engineering efforts for a complex space-system development program.
  • Work closely with the program Lead Systems Engineer and Engineering team leads to ensure the system-architecture models are in sync with the system design & correct.
  • Work closely with National Team partners to mature the integrated HLS model and ensure it remains consistent with the internal Transfer Element (TE) model.
  • Model the space-system architecture (functional and physical) at multiple levels of abstraction using Cameo Systems Modeler to:
    • Develop the system’s Concept of Operations (ConOps), including mission threads and use cases, mission phases, and mission activities.
    • Define the functions at each architectural layer, trace them to the developing requirements, and trace them to the other architectural layers.
    • Define the physical implementation of alternative design solutions (capturing composition, interfaces, performance) and mature the selected design throughout development.
    • Capture the system verification and validation plan, map V&V activities to the system elements/requirements and support system V&V and customer buyoff.
    • Facilitate review by the program team, subject-matter experts, stakeholders, and customers throughout development (and operations, if applicable).
    • Exercise the models to perform impact assessments of proposed changes and support design decisions, and modify the model to capture approved changes as the design matures.
    • Support the Division MBSE Architect in developing domain-specific language (DSL) profile extensions to codify ontologies in various engineering and operations disciplines to reflect standards/best practices and enable seamless integration with other model-based applications.
    • Mature NG modeling capabilities to improve the robustness and efficiency by which systems are developed, with particular focus on producing design and production artifacts from the model, developing tailored system views to enhance understanding and obtain insight, auditing the design through queries of the system model, and improving the speed by which the system design can be evaluated (verified & validated).
    • Support division, sector and corporate digital transformation efforts by integrating descriptive system models with analytical system models and other product-related systems, including Product Life-cycle Management (PLM), Manufacturing Execution System (MES), scheduling and cost-estimation/tracking tools, among others. 
    • Support MBSE efforts on programs across the Civil and Commercial Satellites (CCS) and National Security Systems (NSS) business areas. Help program teams to infuse MBSE approaches into their program development efforts to improve their cost, schedule, technical and risk performance.
    • Train the program technical staff, program office, and customers on usage of the model (model structure, model navigation, model views, use of Cameo, etc, as applicable).
    • Develop descriptive system models of complex space systems at various abstraction levels to support program Model-Based Systems Engineering (MBSE) and Model-Based Engineering (MBE) efforts aligned with corporate-, sector- and division-level digital-transformation goals and objectives.
    • NoVASpace

Basic Qualifications:  
  • Bachelor’s degree in STEM (Science, Technology, Engineering, Math) or related area) and 9+ years of experience, Master’s Degree and 7+ years, or PhD and 4 years of experience. Preference for degrees in systems engineering and computer science.
  • Extensive experience with Systems Modeling Language (SysML) and Unified Modeling Language (UML), including experience with developing SysML profiles to extend the language for domain-specific purposes.
  • High proficiency with either Cameo Systems Modeler or Cameo Enterprise Architect
  • Strong systems engineering skills, including ConOps development, activity/scenario analysis, requirements definition/allocation, functional decomposition, interface definition, verification & validation, requirements traceability to the test plans, & life-cycle management.
  • Broad technical and MBSE experience, across multiple platforms, and encompassing the entire product development lifecycle.
Preferred Qualifications:
  • Experience with java, java script, python, OCL and/or groovy (in an MBSE context)
  • Experience with Velocity Template Language (VTL), Cameo Collaborator, and related methods for extracting information from the descriptive model by use of other software applications.
  • Experience with autocode-generation from Cameo/SysML models.
  • Experience with various technical analysis tools, such as MATLAB, STK, ModelCenter, etc.
Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer, making decisions without regard to race, color, religion, creed, sex, sexual orientation, gender identity, marital status, national origin, age, veteran status, disability, or any other protected class. For our complete EEO/AA and Pay Transparency statement, please visit www.northropgrumman.com/EEO. U.S. Citizenship is required for most positions.

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What's great about
Northrop Grumman

  1. Be part of a culture that thrives on intellectual curiosity, cognitive diversity and bringing your whole self to work.
  2. Use your skills to build and deliver innovative tech solutions that protect the world and shape a better future.
  3. Enjoy benefits like work-life balance, education assistance and paid time off.


Did you know?

We offer an array of benefits to give you the support you need, including matching 401K, tuition assistance, health insurance and wellness options, coaching, mentoring and more.