Systems Engineer – Principal Systems Engineer

Northrop Grumman

. Develop, integrate, and maintain models and simulations in the AFSIM framework for mission-level analysis .

Posted 9/17/2026full-timeBeavercreek • Ohio • United StatesLead💰 $83,400 - $155,400 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in developing and maintaining models and simulations within the AFSIM framework, utilizing programming languages such as Python and C++. Capable of collaborating effectively with cross-functional teams and communicating complex technical information to diverse stakeholders.

Highest-signal resume keywords

AFSIM Development ExperienceObject-Oriented ProgrammingAgile Development MethodologiesTechnical Documentation SkillsActive TS/SCI Security Clearance

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

PythonC++Model-Based Systems EngineeringObject Detection/IdentificationSimulation ArchitectureData VisualizationMATLABSQLJavaAnsys Systems Tool Kit

Soft Skills

Strong Written CommunicationStrong Verbal CommunicationCollaborative TeamworkAutonomous Work CapabilityMentoring Junior Engineers

Tools & Technologies

AFSIMJiraAgile Development ToolsModeling and Simulation ToolsDoD Tools

Certifications & Qualifications

Bachelor of Science Degree in Computer ScienceBachelor of Science Degree in Software EngineeringMaster of Science Degree in Related STEM DisciplineActive TS/SCI Security Clearance

Industry Keywords

Mission-Level AnalysisSystems EngineeringIntelligence MissionsCounter-Space OperationsDepartment of Defense

Tech Stack

Tools & technologies

JavaPythonSQLTypeScriptC++

About the role

Key responsibilities & impact

Develop, integrate, and maintain models and simulations in the AFSIM framework for mission-level analysis
Design and implement AFSIM scenarios and plugins, including object detection/identification and system-of-systems behaviors
Collaborate with modeling and simulation engineers, software developers, analysts, and government/DoD stakeholders
Understand mission objectives and analysis needs
Translate requirements into simulation architectures and models
Validate and document models and results
Use Python, C++, and related languages to extend AFSIM capabilities and interface with external tools, data sources, and visualization environments
Contribute to technical documentation, including intelligence-based reports, model documentation, and design descriptions
Communicate assumptions, limitations, and results
Work as part of an Agile development team using Jira to plan work, track progress, and deliver incremental capability
Support continuous improvement of the modeling and simulation environment
Incorporate lessons learned, new capabilities, and customer feedback
Communicate technical information to technical and non-technical stakeholders
Support space, counter-space, and intelligence missions for NASIC and/or NSIC
Travel domestically up to 10% as required by program needs

Requirements

What you’ll need

Systems Engineer (Level 2): Bachelor of Science degree in Computer Science, Software Engineering, or related STEM discipline and 2+ years of relevant experience; or a Master of Science degree in a related STEM discipline and 0 years of relevant experience
Systems Engineer (Level 3): Bachelor of Science degree in Computer Science, Software Engineering, or related STEM discipline and 5+ years of relevant experience; or a Master of Science degree in a related STEM discipline and 3+ years of relevant experience
U.S. Citizenship
Active TS/SCI security clearance and ability to maintain it
Experience as an AFSIM user or developer
Experience with object-oriented programming, such as C++ and/or Python
Experience working on software or modeling projects in a team environment
Strong written and verbal communication skills, including ability to contribute to complex technical documents
Ability to work autonomously and collaboratively in a fast-paced environment
Direct AFSIM development experience preferred
Experience with AFSIM version 2505 or later preferred, if applicable
Experience using Jira and Agile development methodologies preferred
Experience with Ansys Systems Tool Kit (STK) and other DoD modeling and simulation tools preferred
Additional programming experience with Python, C++, MATLAB, SQL, or Java preferred
Prior IC or domain experience preferred
Familiarity with Model-Based Systems Engineering (MBSE) concepts and tools preferred
Experience mentoring and supporting junior engineers preferred

Benefits

Comp & perks

Relocation assistance may be available
Overtime eligibility may be available depending on position
Shift differential may be available depending on position
Discretionary bonus eligibility
Health insurance coverage
Life and disability insurance
Savings plan
Company-paid holidays
Paid time off (PTO) for vacation and/or personal business