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Added 18 mins ago
System Software Engineer, UEFI Firmware
NVIDIA USA
CA · CO
We are now hiring a System Software Engineer for the UEFI Firmware team! You will be heavily involved with the early modeling and simulation required to produce our world-class products,…
Added 52 mins ago
Radar Modeling and Simulation Analyst
BOOZ ALLEN HAMILTON INC
Dayton, OH
Job Number: R0243235 Radar Modeling and Simulation Analyst The Opportunity: Your engineering skills and determination are needed to develop the cutting-edge technology used to support the…
Added 52 mins ago
A
PCB Layout Design Engineer
Actalent
Cincinnati, OH
- $75 to $85 USD / hour
We are seeking an experienced PCB Layout Design Engineer to support the development of advanced, high-reliability electronic hardware for mission-critical applications.
Added 2 hours ago
GM
Applied AI Engineer
General Matter
Los Angeles, CA
- $100,000 to $200,000 USD / year
Building AI tooling so that every engineer can run complex safety and physics analyses before design reviews, without waiting on a specialist.
Added 2 hours ago
IG
Senior Energy Distribution & Management Engineer
Insight Global
Costa Mesa, CA
- From $77 USD / hour
Experience with power system simulation tools
Added 2 hours ago
IG
Senior Energy Storage and Regulation Engineer
Insight Global
Costa Mesa, CA
- From $77 USD / hour
Familiarity with battery modeling and simulation tools
Added 2 hours ago
2027 Associate Structural Engineer / Structural Engineer - Huntsville AL
Northrop Grumman
Huntsville
…solutions in aircraft sustainment and modernization, training and simulation, integrated battle command systems, advanced weapons, and software development and IT modernization and…
Added 2 hours ago
FPGA Engineer
Northrop Grumman
Rolling Meadows
…counter-measure systems (IRCM), automatic test equipment, modeling and simulation, and situational awareness…
Added 2 hours ago
Principal/Sr. Principal FPGA Engineer
Northrop Grumman
Rolling Meadows
…counter-measure systems (IRCM), automatic test equipment, modeling and simulation, and situational awareness…
Added 2 hours ago
Guidance Navigation Control Engineer - 20429*
Northrop Grumman
Manhattan Beach
Northrop Grumman Defense Systems is seeking Guidance Navigation Control Engineer. This position will be located in Manhattan Beach, CA and will support GSSC.
Added 2 hours ago
Principal Guidance Navigation Control Engineer - 20430*
Northrop Grumman
Manhattan Beach
Northrop Grumman Defense Systems is seeking Principal Guidance Navigation Control Engineer - 20430. This position will be located in Manhattan Beach, CA and will support GSSC.
Added 2 hours ago
2027 Associate Systems Engineer - San Diego CA
Northrop Grumman
San Diego
Added 2 hours ago
PG
Robotics Simulation Engineer
Premier Global Links
San Francisco · San Francisco, CA
- $150,000 to $300,000 USD / year
We are seeking a Robotics Simulation Engineer to build high-fidelity 3D simulations and digital environments that help train next-generation robots. This is an opportunity to work on…
Added 2 hours ago
Staff Engineer, Design Verification
Micron Technology
San Jose
As a Staff Design Engineer at Micron Technology, Inc., you will be responsible for designing and analyzing digital and analog circuits used in the development of memory products! We are…
Added 2 hours ago
Principal AI Systems Performance Engineer
Micron Technology
Austin
JR116021 Principal AI Systems Performance Engineer
Added 3 hours ago
Staff/Principal AI Transformation Engineer
DiDi Labs
San Jose, CA · Mountain View, CA
We are seeking a visionary, highly technical, and mission-driven Staff or Principal AI Transformation Engineer to act as the ultimate catalyst for our company-wide AI transformation. In…
Added 3 hours ago
Sr. / Staff Software Engineer, Infrastructure (Autonomy)
DiDi Labs
San Jose, CA · Mountain View, CA
We are seeking an experienced Sr. Software Engineer / Staff Software Engineer, Infrastructure to lead the architecture and evolution of the core platform powering our autonomous driving…
Added 3 hours ago
Modeling and Simulation Software Engineer
LEIDOS, INC.
Beavercreek, OH
Leidos is hiring a Modeling and Simulation Engineer with an active Secret clearance in our Beavercreek Ohio Office. The successful candidate will use strong technical capabilities and…
Added 3 hours ago
Telemetry Engineer
Parsons Government Services Inc.
AL
Parsons is seeking a skilled Telemetry Engineer to support the Missile Defense Agency (MDA) Targets and Countermeasures Engineering Directorates. In this role, you will provide critical…
Added 3 hours ago
2027 Associate Systems Engineer - San Diego CA
CORP-Corporate Office
United States
Added 3 hours ago
Industrial Engineer 2
Sysco Payroll, Division of Sysco Resources Services, LLC
United States
The Industrial Engineer II, Supply Chain will implement and maintain the engineering program across warehouse and delivery operations for US and/or International locations. The engineer…
Added 3 hours ago
South Carolina Traffic Discipline Leader
STV Incorporated
North Charleston, SC · Columbia, SC
…analyses, traffic signal timing plans, microscopic and macroscopic simulation modeling, signal warrants, speed studies, capacity analysis, traffic operations, safety analysis, and parking…
Added 3 hours ago
Senior Site Reliability Engineer
Bentley Systems
Exton, PA · Philadelphia, PA
We are looking for a Senior Site Reliability Engineer to take on the responsibility of automating cloud-based services infrastructure and tooling, with a specific focus on DevOps automation…
Added 3 hours ago
System Architecture Engineer
Modern Technology Solutions Inc
Hill AFB, UT · Ogden, UT · Hill AFB · Ogden
Modern Technology Solutions, Inc. (MTSI) is seeking a highly skilled System Architecture Engineer to support Intercontinental Ballistic Missile (ICBM) programs within the Air Force Nuclear…
Added 3 hours ago
Senior Controls Engineer
Parallel Systems
Los Angeles, CA
Parallel is seeking a Senior Controls Engineer with deep expertise in control systems development to join our engineering team. This role focuses on modeling, simulating, and designing the…

Closed listing

KBR

Principal Modeling & Simulation Software Engineer

Reston, VA, United States

On-site

Compensation range for Virginia is $170,000 to $195,000

This opening has closed.

The original listing is kept below for reference.

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Job details

Pay: Compensation range for Virginia is $170,000 to $195,000
Workplace: On-site
Posting language: English
Posted: Nov 2, 2026

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Original job description

Archived listing. The details below describe a past opening.

Title:

Principal Modeling & Simulation Software 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.

Key Responsibilities:

KBR is seeking a highly skilled and experienced Principal Modeling & Simulation Software Engineer to join a dynamic, high-performing, multidisciplinary team of military domain SMEs, modelers, and analysts located in Northern Virginia. This team leverages advanced modeling, simulation, and analysis (MS&A) tools such as SAFE-SiM to shape and inform Concept Exploration, Course of Action Analysis, and Operational Planning efforts for Department of War (DoW) stakeholders. The ideal candidate shall:

Design, develop, and maintain modeling primitives, behaviors, and reusable software components using AFSIM scripting languages, C#, Razor, and other applicable technologies.
Implement new model capabilities and enhancements that accurately represent operational systems, platforms, sensors, weapons, command-and-control functions, and other mission-relevant entities.
Develop model compositions and complex behaviors by integrating lower-level primitives into reusable simulation constructs.
Create and execute verification and validation test plans to ensure model functionality, performance, and fidelity prior to integration into the core simulation framework.
Identify, troubleshoot, and resolve software defects and model performance issues through structured testing and debugging.
Prepare technical documentation describing model design, implementation approaches, assumptions, limitations, and test results.
Collaborate closely with software engineers, integration teams, analysts, and subject matter experts to ensure models meet mission and technical requirements.
Support integration, regression testing, and configuration management activities associated with deployment into enterprise modeling and simulation environments.
Provide technical guidance and peer reviews to promote software quality, consistency, and adherence to development standards.

Work Environment:

Location: On-site
Travel Requirements: Minimal 0-20%, supporting strong work-life balance
Working Hours: Standard

Qualifications:

Required:

Bachelor of Science in Computer Science, Software Engineering, or other STEM field with 10+ years of relevant experience
4+ years of modeling, simulation, and analysis (MS&A) experience with one or more mission-level combat simulation frameworks such as AFSIM, NGTS, ITASE, SAFE-SiM, or similar environments
Demonstrated proficiency in object-oriented software development using C#, C++, Python, or comparable programming languages
Experience developing, modifying, testing, and debugging models, behaviors, or simulation components within AFSIM or similar modeling and simulation environments
Experience applying software engineering best practices including version control, structured testing, documentation, and configuration management
Active Top-Secret clearance with Sensitive Compartmented Information (SCI) eligibility
Demonstrated ability to work effectively in a small, high-performance team environment
Strong collaborative skills with experience working in expert-driven, multidisciplinary teams

Desired:

Master of Science in Computer Science, Software Engineering, or other STEM field with 12+ years of relevant experience
Experience developing or modifying Razor-based model components
Experience developing reusable software libraries, model primitives, behaviors, or simulation extensions for integration into larger modeling and simulation frameworks
Familiarity with MBSE techniques and tools, with the ability to translate operational concepts and behavioral models into executable simulation capabilities
Familiarity with automated testing, continuous integration, or software quality assurance processes within modeling and simulation environments
Experience with source control, software configuration management, automated build pipelines, and CI/CD tools such as Git, GitLab, Jenkins, DevOps, or similar platforms
Experience representing military systems, sensors, weapons, effects, or command-and-control processes in mission-level simulations
Scheduled Weekly Hours:40hrs
Basic Compensation:The offered rate will be based on the selected candidate’s knowledge, skills, abilities and/or experience and in consideration of internal parity.
Compensation range for Virginia is $170,000 to $195,000

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. Ready to Make a Difference?If you’re excited about making a significant impact in the field of national defense and working on projects that matter, we encourage you to apply and join our team at KBR. Let's shape the future together.KBR BenefitsKBR 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.

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
C#
Troubleshoot
Debugging
Computer science
Software development
C++
Python
Programming languages
Documentation
Software libraries
Test automation
CI/CD
Quality assurance methodologies
Git
GitLab
Jenkins
DevOps

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