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Principal Systems Engineer
The MITRE Corporation
McLean, VA · Springfield, VA
MITRE’s Systems Engineering Analytics department is looking for qualified Systems Engineer applicants to support the National Geospatial Agency’s (NGA) Sensor Integration Program Management…
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Staff Site Reliability Engineer
Veeam Software
Remote, United States
Veeam is launching a global Site Reliability Engineering (SRE) function to support the rollout and operation of our new SaaS offering: the Veeam Data Cloud. SRE at Veeam is a software…
Added 3 mins ago
GD
Principal Software Engineer
Green Dot Corporation
United States
- $159,400 to $230,000 USD / year
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Added 8 mins ago
Principal/Senior Plant Maintenance Engineer
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Data Engineer
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Quality Principal Engineer I
Zimmer, Inc.
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Senior Engineer, Mechanical - Fixed Equipment & Piping Integrity
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United States
The Staff Mechanical Engineer – Fixed Equipment & Piping Integrity is responsible for providing technical engineering support for the integrity, reliability, and regulatory compliance of…
Added 31 mins ago
Sr. Radio Frequency (RF) Engineer
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Transportation Project Engineer
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Principal Data Architect
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Principal Engineer, Identity & Access Management (IAM) - Microsoft Entra ID
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Principal Radar Systems Engineer
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Principal Analytics Engineer
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Remote, United States
The Principal Analytics Engineer is the organization’s most senior individual contributor for the enterprise data platform and serves as the end-to-end technical owner of Snowflake and its…
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Principal Imaging Engineer
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The Principal Imaging Engineer is a senior technical contributor responsible for the development, evaluation, optimization, and support of imaging technologies used in CT scanning systems.…
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Executive Protection Agent
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Miami, FL
- $145,000 USD / year
The Executive Protection Agent is tasked with numerous functions providing overall support to protective security detail in Miami, FL. This detail operates in a fast-paced, fluid,…
Added 1 hour ago
P
Vehicle Calibration Engineer - Software Integration (Driver Assistance Systems)
PACCAR
Mount Vernon, WA
- $70,500 to $105,800 USD / year
We are looking for a driven Calibration Engineer to join our Vehicle Calibration team. This role offers opportunity to focus on the calibration, integration, and in-vehicle verification of…
Added 1 hour ago
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Virtual Sales Engineer - West
Leybold USA Inc
Denver, CO
- $40,123 USD / year
Join Leybold as a Virtual Sales Engineer! Be the single point of contact for customers, driving sales in open territories and re-engaging lapsed accounts. Enjoy a hybrid work model after…
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Software Development Engineer II, Efficiency & Performance, Alloy, Region Flex Efficiency
Amazon.com Services LLC
Sunnyvale, CA
As a Software Development Engineer in Alloy, you will collaborate with service and infrastructure teams across Amazon to identify and eliminate performance bottlenecks in large-scale…
Added 1 hour ago
Software Development Engineer III, Efficiency & Performance, Alloy, Region Flex Efficiency
Amazon.com Services LLC
Sunnyvale, CA
As a Software Development Engineer in Alloy, you will collaborate with service and infrastructure teams across Amazon to identify and eliminate performance bottlenecks in large-scale…
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Principal Mechanical Design Engineer
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Phoenix, AZ
As a Principal Mechanical Design Engineer here at Honeywell Aerospace, you will be a key contributor to the design and development of cutting-edge mechanical solutions. You will play a…
Added 1 hour ago
IG
Principal Software Architect
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Smyrna, GA
- $140,000 to $240,000 USD / year
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Principal Robotics Engineer - R&D
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Boston Engineering is seeking a Principal Robotics Engineer - R&D to join our team in Waltham, MA!
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Principal Flight Controls Engineer
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As a Principal Flight Controls Engineer you will help support the development of the Control Laws for the EL9 Ultra Short aircraft.
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Senior Core Infrastructure Engineer
Oracle
Santa Clara, CA · Seattle, WA · Austin, TX · Nashville, TN
- $79,200 to $209,500 USD / year
As a Senior Software Development Engineer in the Oracle Cloud Infrastructure (OCI) Security Platform division, you will help build and operate OCI’s Key Management Service (KMS), a…

KBR Wyle Services, LLC

Principal Modeling & Simulation Software Engineer

United States

On-site

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

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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

Original job description

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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