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Northrop Grumman

Builds stealth bombers, missiles, and satellites

Principal/Senior Principal Space Systems Engineer Interface Management

Spacecraft & Launch Vehicle SystemsPosted on Nov 9
Full-timeChantilly, VA, USA

About the Job

Requirements

  • Level 3 requires a bachelor's degree with 5 years of professional experience, a master's degree with 3 years of professional experience, or a PhD with 1 year of professional experience.
  • Level 4 requires a bachelor's degree with 8 years of professional experience, a master's degree with 6 years of professional experience, or a PhD with 4 years of professional experience.
  • An active Top Secret/Sensitive Compartmented Information clearance is required at the time of application.
  • Demonstrated experience supporting development of a space or ground system is required.
  • Demonstrated systems engineering experience is required, such as requirements management, system architecture development, CONOPs development, mission engineering, or modeling and simulation.

Responsibilities

  • Own the definition, control, and management of external system interfaces across complex, multi-segment architectures.
  • Develop, maintain, and baseline Interface Control Documents, interface requirements, and associated models to ensure consistent, traceable implementation throughout the program lifecycle.
  • Engage with stakeholders to provide recurring status updates, including weekly metrics, execution health, and schedule adherence.
  • Produce high-level and detailed technical artifacts such as interface diagrams, sequence/flow diagrams, data models, and API/interface contracts.
  • Work with mission partners to model and mature mission elements, operational concepts, interfaces, and execution plans.
  • Develop and manage mission, system, and subsystem requirements, including decomposition, allocation, traceability, verification, and validation.
  • Define and manage internal and external interfaces among spacecraft, payloads, host vehicles, sensor suites, ground systems, and mission partners.
  • Support major program milestones, technical reviews, and mission-readiness reviews by developing technical content and translating complex engineering information into clear assessments and briefings for customers, program leadership, and other key stakeholders.
  • Author and contribute to mission-engineering products, systems engineering artifacts, technical reports, and other critical program deliverables.

Desired Qualifications

  • Experience developing and managing Interface Control Documents, interface requirements, and associated models across the system lifecycle.
  • Experience with external interface integration, API onboarding, or modernization efforts, such as migrating or integrating with new enterprise platforms or services.
  • Experience with enterprise platforms/APIs for command and telemetry interfaces.
  • Experience modeling and documenting interfaces and software designs using tools such as SysML/UML, sequence diagrams, data models, and API specifications.
  • Experience developing technical briefings and communicating complex engineering information to senior technical, program, customer, or executive stakeholders.
  • Experience collaborating across multiple engineering disciplines to resolve technical issues and develop integrated spacecraft or mission solutions.
  • Experience in Space Superiority mission design, satellite ground software, or distributed modeling and simulation.
  • Experience with mission system requirements, verification/validation planning, mission planning/execution, mission analysis, modeling/simulation, or system trade studies.

About the Company

Northrop Grumman

Builds stealth bombers, missiles, and satellites

Northrop Grumman builds military aircraft, missiles, rocket motors, satellites, and electronic systems, mostly for the American military and allied governments. It designed the B-2 stealth bomber and built NASA's James Webb Space Telescope, the largest telescope ever sent to space. The company works through four businesses: aircraft, missiles and ammunition, radar and communications systems, and space hardware such as satellites and solid rocket boosters. Most revenue comes from long-term government contracts, many of them classified. Its roots go back to Northrop Aircraft, founded in 1939, and it took its name after buying Grumman in 1994 and is based in Falls Church, Virginia.

Company size
10,001+
Company stage
IPO
Headquarters
Falls Church, VA
Founded
1939

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