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Added 7 hours ago
Electrical Design Engineer, Senior
Axiom Space
United States
The AxEMU PLSS contains flight computers, radios, sensors, and network switches that enable communication and control during all aspects of a spacewalk. You will be responsible for creating…
Added 14 hours ago
Airworthiness Principle Engineer
TASC Technical Services
San Diego, CA
Principal Airworthiness Engineer working within the Airworthiness Engineering Directorate supporting certification efforts on various air vehicle platforms. The selected candidate will…
Added 14 hours ago
Sentinel - Principal/Sr Principal System Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Principal Systems Engineer or Sr. Principal Mechanical Engineer to join our team. This position will be located at Roy, UT to support the…
Added 14 hours ago
Sentinel - Principal / Sr Principal Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s…
Added 14 hours ago
Sentinel - Sr Principal Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s…
Added 14 hours ago
Sentinel - Principal / Sr Principal Systems Engineer
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Principal Systems Engineer/Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman…
Added 14 hours ago
Sr Principal Systems Engineer - Wing Test Capability Lead
Northrop Grumman
Roy, UT
Northrop Grumman Defense Systems is seeking a Sr. Principal Systems Engineer . This opening is in Roy, UT and will support the Sentinel Program . Northrop Grumman supports the Air Force’s…
Added 21 hours ago
Circuit Design Engineering Associate Manager, Avionics, Secret Clearance
Lockheed Martin
Littleton, CO
Certified Principal Engineer (CPE) or Responsible Systems Engineering (RSE) experience.
Added 22 hours ago
Principal/Sr Principal Software Engineer Guidance Navigation Control (GNC)
Northrop Grumman
Beavercreek, OH
We are looking for you to join our team as a Principal or Senior Principal Software Engineer - Guidance Navigation Control (GNC) based out of Beavercreek, OH . As a Software Engineer at…
Added 22 hours ago
SkillBridge - Network / Principal Network Communications Engineer
Northrop Grumman
Ellsworth AFB, SD
Northrop Grumman Aeronautics Systems has opening for an Network and Principal Network Communications Engineer to join our team of qualified, diverse individuals within our Ground Systems…
Added 1 day ago
*Guidance Navigation Control (GNC) Engineers - Level 3 - TS Cleared (AHT)
Northrop Grumman
Gilbert, AZ
Experience with performing spacecraft GNC design, analysis, Hardware (HW) and Integration & Test (I&T), or flight operations.
Added 1 day ago
Principal/Senior Principal Electronics Engineer
Northrop Grumman
Baltimore, MD
This Principal / Senior Principal Electronics Engineer position requires hands-on experience troubleshooting complex systems, experience working with Test and Measurement equipment, and…
Added 1 day ago
Principal Radar Modeling Simulation & Analysis Systems Engineer
Northrop Grumman
Baltimore, MD
…Baltimore and Partnered Sites (BaPs) Division is seeking a Principal Radar Modeling Simulation & Analysis Systems Engineer to join our team of qualified and diverse individuals. This…
Added 1 day ago
Principal Modeling Simulation and Analysis Systems Engineer
Northrop Grumman
Baltimore, MD
We are looking for a Principal Modeling Simulation and Analysis Systems Engineer to join our team in Baltimore, MD. This position requires 100% on-site work.
Added 1 day ago
Principal / Sr. Principal Engineer Software - Cloud & Applications
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Principal or Sr. Principal Software Engineer - Cloud and Applications to join our team of qualified, diverse individuals. This…
Added 1 day ago
Principal Platform Engineer - People Systems
Apple
Sunnyvale, CA
When you engineer for People Systems, your users are Apple’s most vital asset: its People. We are seeking a visionary Application Architect to shape the technical strategy for People…
Added 1 day ago
Engineer Senior Principal – Space Vehicle Systems / Simulators
BAE Systems
Boulder, CO
Job Description Our Aerospace & Mission Systems (AMS) division is seeking a Principal Systems/Software Engineer to join our Space Vehicle Simulator team. In this role, you will work at the…
Added 1 day ago
Sr. Principal Systems Engineer
V2X
Indianapolis, IN
V2X is seeking a Senior Principal Systems Engineer with a passion for autonomous vehicle system integration and test to join our Systems Engineering team in Indianapolis, IN. This position…
Added 1 day ago
J
Senior QA / Test Automation Engineer
Jobot
Gaithersburg, MD
- $150,000 USD / year
Build the Future of Aviation Through Next-Generation Test Automation
Added 1 day ago
Principal Engineer Manufacturing
Northrop Grumman
Sunnyvale
Northrop Grumman Mission Systems is looking for you to join our team as a Principal Engineer Manufacturing, based out of Sunnyvale, CA.
Added 1 day ago
Principal Engineer Process
Northrop Grumman
Los Angeles
The Manufacturing Engineering Department is looking for a multi-disciplined Manufacturing Engineer to support all aspects of precision navigation instrument assembly and test in an…
Added 1 day ago
Principal / Sr. Principal Engineer Software - Cloud & Applications
Northrop Grumman
El Segundo
Northrop Grumman Aeronautics Systems has an opening for a Principal or Sr. Principal Software Engineer - Cloud and Applications to join our team of qualified, diverse individuals. This…
Added 1 day ago
Sr Principal Engineer Manufacturing Systems
Northrop Grumman
San Diego
Northrop Grumman Mission Systems Manufacturing Engineering is seeking a Sr Principal Manufacturing Systems Engineer to join the Operations Team in San Diego, CA.
Added 1 day ago
IR Plume Mod/Sim Systems Engineer - Level 2 or 3
Northrop Grumman
Colorado Springs
This requisition may be fulfilled at either the Modeling and Simulation Systems Engineer – Level 2 or Principal Modeling and Simulation Systems Engineer – Level 3.
Added 1 day ago
Lead Automation Test Engineer - Level 4
Northrop Grumman
Colorado Springs
…Business Unit (BU) has an exciting career opportunity for a Sr. Principal Test Engineer Lead – Test Automation (Level 4) to join our team of qualified, diverse individuals. This position…

Closed listing

KBR

Senior/Principal Systems Modeling & Simulation Engineer

Greenbelt, MD, United States

Jobs on this contract range from $191,900.00 - $287,800.00 Pay range is specific to the Greenbelt, MD area.

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: Jobs on this contract range from $191,900.00 - $287,800.00 Pay range is specific to the Greenbelt, MD area.
Experience: ·15+ years of systems engineering experience.
Posting language: English
Posted: Nov 3, 2026

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Original job description

Archived listing. The details below describe a past opening.

Title:

Senior/Principal Systems Modeling & Simulation Engineer At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions.

Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

Position Summary

KBR is seeking a Senior/Principal Systems Modeling & Simulation/Systems Engineer to join the Structural Engineering and Analysis team supporting NASA Goddard Space Flight Center Programs. This position would provide structural engineering, analysis, and test support for a wide range of cutting edge and exciting aerospace projects including space telescopes, earth science satellites, Mars, Moon and asteroid science missions, robotic servicing missions, and associated mechanical ground support equipment.

Responsibilities

IM Modeling & Systems Analysis Duties

Implement necessary changes to convert the standard STOP structural model to support composite moisture desorption analysis for both steady state and transient cases; the latter includes coordination with thermal modelers/analysts to enable temperature mapping onto the structural model and implementation of temperature variability for key variables

Perform steady state and transient moisture desorption analysis for flight and TVAC test cases with primary responsibility for recovering distortions and coordinating with opto-mechanical and optical analysts to recover optical performance metrics

Perform Monte Carlo analysis as necessary to validate Model Uncertainty Factors (MUF) based on variability of key model properties Invar Growth Analysis Implement necessary changes to convert the standard STOP structural model to support Invar growth analysis

Perform steady state Invar growth analysis for flight cases with primary responsibility for recovering distortions and coordinating with opto-mechanical and optical analysts to recover optical performance metrics

Perform Monte Carlo analysis as necessary to validate Model Uncertainty Factors (MUF) based on variability of key model properties Gravity Release Analysis Implement necessary changes to convert the standard STOP structural model to support gravity release analysis

Perform gravity release analysis with primary responsibility for recovering distortions and coordinating with opto-mechanical and optical analysts to recover optical performance metrics

Perform Monte Carlo analysis as necessary to validate Model Uncertainty Factors (MUF) based on variability of key model properties

STOP Pipeline Tool Development Duties

Maintain and improve on an existing script database which includes tens of thousands of lines of custom code tailored to Roman and Habitable Worlds Observatory analysis workflows for Structural-Thermal-Optical Performance (STOP) analysis

Work with performance stakeholders (science, systems, optical, etc.) to define performance metrics that support understanding of overall observatory, telescope, and instrument optical performance; develop corresponding analysis scripts

Implement new analysis capabilities into the STOP pipeline tool to support analysis cycle objectives; this includes, but is not limited to adding functionality for composite moisture desorption and Invar growth analyses, and others as necessary

Identify and implement analysis process automation features as well as integrate the STOP Pipeline tool with separate industry toolsets that facilitate iterative systems analysis methods

Required and Preferred Qualifications, Education, and Experience Minimum Requirements

· Bachelor's degree in Systems Engineering, Aerospace Engineering, Electrical Engineering, Computer Engineering, Software Engineering, Computer Science, or related technical discipline.

·15+ years of systems engineering experience.

· Experience supporting requirements as leadership, management, or analysis.

· Knowledge of systems engineering lifecycle processes.

· Experience supporting verification and validation activities.

· Strong written and verbal communication skills.

Preferred Requirements

· Experience supporting NASA, FAA, DoD, or other federal programs.

· Master's degree in Systems Engineering or related discipline.

Basic Compensation:

Jobs on this contract range from $191,900.00 - $287,800.00 Pay range is specific to the Greenbelt, MD area.

The offered rate will be based on the position, contract affordability, the selected candidate’s working location, knowledge, skills, abilities, experience, and in consideration of internal parity.

Additional Compensation:

KBR may offer bonuses, commissions, or other forms of compensation to certain job titles or levels, per internal policy or contractual designation. Additional compensation may be in the form of sign on bonus, relocation benefits, short-term incentives, long-term incentives, or discretionary payments for exceptional performance.

KBR Benefits: KBR offers a selection of competitive lifestyle benefits which could include 401K plan with company match, medical, dental, vision, life insurance, AD&D, flexible spending account, disability, paid time off, or flexible work schedule. We support career advancement through professional training and development. Click here to learn more: KBR Benefits | KBR

Belong, Connect and Grow at KBR

At KBR, we are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together.

KBR is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.

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Skills

people@work
Structural engineering
Earth science
Aerospace engineering
Electrical engineering
Computer engineering
Computer science
Leadership
Communication skills

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