Northrop Grumman Space Systems, Multi-Domain Operations, and Missile Defense Integration Business Unit (BU) has an exciting career opportunity for a Modeling and Simulation Engineer – Level 3 or 4 to join our team of qualified, diverse individuals. This position will be in Huntsville, AL.
Position Overview:
The selected Modeling and Simulation Engineer will support the Ground Weapons System (GWS) program as an individual contributor on the System Performance and Analysis - Test Exerciser team. This role is responsible for providing technical contributions and guidance to modeling and simulation products that directly support the design and development of the GWS capability on behalf of the Missile Defense Agency (MDA).
The selected candidate should thrive in a fast-paced work environment with high expectations, significantly diverse assignments, and collaborative/teams comprised of all experience levels.
Basic Qualifications:
- Principal Modeling & Simulation Systems Engineer – Leve 3: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 5 years of related experience, or a Master's Degree and 3 years of related experience, or 1 year of experience with a PhD.
- Sr. Principal Modeling & Simulation Systems Engineer – Level 4: Bachelor’s Degree in a STEM (Science, Technology, Engineering or Mathematics) discipline preferred from an accredited university and 8 years of related experience, or a Master's Degree and 6 years of related experience, or 4 years of experience with a PhD.
- Proficiency in strongly typed languages such as C, C++, or JAVA
- Experience with other software languages such as ADA or Python
- Experience with the Atlassian tool suite and software version control tools such as Git and Bitbucket
- Experience developing software using Object Oriented Design or SOLID principles
- Experience developing modeling and simulation software
- Experience debugging complex software systems
- Familiarity with MBSE requirements derivation
- Must be able to support an in-person / closed-area work environment
- Applicants must have a current active in-scope US Government issued Secret security clearance at the time of application, which is required to start
Preferred Qualifications:
- Experience developing software for iTEx
- Experience working with OSF (Objective Simulation Framework) and GTISS (Ground Test Integrated System Simulation)
- Experience optimizing runtime performance of algorithms or models and simulations (C++ is a bonus)
- Experience profiling multithreaded or distributed systems
- Experience working with the Boost thread library
- Strong understanding of data structures, concurrency, and scalable/efficient software design
Skills Required
- Bachelor's degree in a STEM discipline with 5 years related experience, or Master's with 3 years, or PhD with 1 year
- Bachelor's degree in a STEM discipline with 8 years related experience, or Master's with 6 years, or PhD with 4 years (Level 4)
- Proficiency in strongly typed languages such as C, C++, or Java
- Experience with other software languages such as ADA or Python
- Experience with Atlassian tool suite and software version control (Git, Bitbucket)
- Experience developing software using Object Oriented Design or SOLID principles
- Experience developing modeling and simulation software
- Experience debugging complex software systems
- Familiarity with MBSE requirements derivation
- Must be able to support an in-person / closed-area work environment
- Current active in-scope US Government issued Secret security clearance at time of application (required to start)
- Experience developing software for iTEx
- Experience working with OSF (Objective Simulation Framework) and GTISS
- Experience optimizing runtime performance of algorithms or models and simulations (C++ a bonus)
- Experience profiling multithreaded or distributed systems
- Experience working with the Boost thread library
- Strong understanding of data structures, concurrency, and scalable/efficient software design
Northrop Grumman Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Northrop Grumman and has not been reviewed or approved by Northrop Grumman.
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Retirement Support — 401(k) matching is considered strong, with additional defined-benefit coverage for certain cohorts and options like catch-up contributions. Retirement programs are repeatedly highlighted as a core strength of the total rewards.
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Leave & Time Off Breadth — PTO, company-paid holidays, and compressed work schedules (such as 9/80) provide meaningful time away and flexibility. These scheduling options are cited as a major quality-of-life benefit across many locations.
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Parental & Family Support — Paid parental leave alongside caregiver leave, adoption assistance, and back-up care supports a range of family needs. These programs have been expanded recently, signaling continued investment in family support.
Northrop Grumman Insights
What We Do
We are a close-knit community of big thinkers collaborating to keep the world safe. Our passion, creativity and expertise bring next-level technology solutions to life in autonomous systems, cyber, C4ISR, strike, space, and logistics and modernization for our customers around the globe. On the Northrop Grumman team, you’ll join our pursuit of excellence immersed in a dynamic culture of innovation and respect. Your unique perspective will help achieve our shared vision for the future of global security. Every step of the way, you'll be supported by world-class training, employee resource groups and a comprehensive benefits package that enables greater health and happiness for you and your family. Worldwide and across disciplines, we’re challenging what’s possible for technology to protect people and places from undersea to outer space and into cyberspace. And we see the impact of our performance every day. We are Northrop Grumman, and we work on what matters—now, you too can make a difference. Explore opportunities in engineering, IT, manufacturing, business management, cybersecurity and more with us. Northrop Grumman is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity/Affirmative Action Employer.







