Sr Principal Systems Engineer Architect

Northrop Grumman•Melbourne, FL

30d•$122,800 - $184,200•Onsite

About The Position

At Northrop Grumman, we offer employees incredible opportunities to work on revolutionary systems that impact lives globally and for generations to come. Our pioneering spirit has led us to be at the forefront of technological advancements, from the first transatlantic flight to stealth bombers and moon landings. We seek individuals with bold ideas, courage, and a pioneering spirit to join us in inventing the future. Our culture fosters intellectual curiosity, cognitive diversity, and encourages employees to bring their whole selves to work, driven by an insatiable desire to achieve the seemingly impossible. Our employees are not just part of history; they are making history. Northrop Grumman Aeronautics Systems is looking for a Sr. Principal Systems Engineer to provide senior technical leadership in model-based systems engineering, requirements development, and architecture definition for a complex aerospace system. This role emphasizes the use of Cameo to capture and manage system requirements, functional and physical architectures, and interfaces throughout the program lifecycle. The Sr. Principal Systems Engineer will lead requirements and architecture development in Cameo, ensuring the digital system model accurately represents system requirements, behaviors, and interfaces. Working under consultative direction, this individual will independently develop solutions and collaborate with chief engineers, Integrated Product Teams (IPTs), and specialty disciplines to support design decisions, mission effectiveness, and verification planning.

Requirements

Bachelor’s degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline and 8 years of related engineering experience, OR Master’s degree in STEM and 6 years of related engineering experience, OR PhD in STEM and 4 years of related engineering experience.
US Citizenship and ability to obtain and maintain a DoD security clearance as required by the program.
Extensive systems engineering experience with emphasis on requirements development, decomposition, and architecture definition for complex systems.
Hands-on experience using Cameo/MagicDraw (or equivalent MBSE tool) for SysML-based modeling, including creation and maintenance of system-level models.
Demonstrated ability to critically present technical approaches and findings to customers, engineers, and management from multiple disciplines.

Nice To Haves

Experience supporting mission planning and ground systems, including definition of operational concepts, workflows, and interfaces between air vehicle and ground mission systems.
Experience defining and managing air vehicle requirements, including performance, mission, avionics, and integration requirements, and capturing those requirements in an MBSE/Cameo model.
Experience with mission systems and communications architectures, including data links, networks, and interfaces between onboard systems, ground segments, and external assets.
Proven application of MBSE/SysML to represent mission threads, mission planning workflows, or end-to-end operational scenarios that span vehicle, mission systems, and ground systems.
Hands-on experience integrating Cameo models with requirements management tools (e.g., DOORS/DOORS Next) and generating traceability/coverage reports.
Prior role as a systems engineering or MBSE lead on a defense or aerospace program involving air vehicle, mission planning, or communications systems.

Responsibilities

Lead requirements development, decomposition, allocation, and traceability within Cameo, translating customer and stakeholder needs into system, segment, and subsystem requirements.
Develop and maintain system architectures (operational, functional, and physical) using SysML and MBSE methods, including use case, activity, sequence, block definition, and internal block diagrams.
Integrate requirements, behaviors, interfaces, and constraints into a cohesive model that supports mission analysis, system design, and verification/validation strategies.
Establish and apply modeling conventions and guidelines; provide recommendations that directly influence major program and organizational objectives.
Coordinate architecture and requirements updates with multi-disciplinary teams (mission systems, avionics, ground systems, communications, vehicle teams, etc.), capturing cross-discipline impacts and dependencies.
Generate model-based views and reports for technical reviews (SRR, PDR, CDR, etc.), clearly communicating requirements coverage, interface definition, and design maturity.
Provide MBSE and Cameo guidance and mentorship to other engineers; help grow modeling capability across the team.
Collaborate with requirements management and configuration management to baseline the Cameo model and maintain alignment with tools such as DOORS/DOORS Next.