Jobs in the United States

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Added 7 mins ago
Principal Solution Engineer
Austin, TX
The Principal Solution Engineer is a senior individual contributor and the solution expert on Certinia's most complex opportunities, with a focus on the industry's leading solution for…
Added 8 mins ago
O
Lead Principal Application Software Engineer- Forward Deployed Engineer
Oracle
Madison, WI
- $104,600 to $264,100 USD / year
Oracle Customer Success Services (CSS) is seeking a Senior Principal Forward Deployed Engineer to lead the delivery of strategic AI and data transformation programs for Oracle's largest…
Added 8 mins ago
2026 Summer Internship: Test Process Engineer
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 8 mins ago
2027 Summer Internship: Cab Trim Process Engineer (SG15/16)
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 8 mins ago
2027 Summer Internship: Manufacturing Engineer (SG15/16)
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 8 mins ago
2027 Summer Internship: Paint Process Engineer (SG15/16)
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 8 mins ago
2027 Summer Internship: Frame Process Engineer (SG15/16)
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 8 mins ago
2027 Summer Internship: Chassis Process Engineer (SG15/16)
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 18 mins ago
Principal RF Engineer
CACI
Springfield, VA · Springfield
CACI is hiring a Principal Electrical Engineer that will Leads project teams deployed worldwide to install, maintain and upgrade complex electronic mission systems, security systems and…
Added 21 mins ago
Consultant, Data Engineer
Nationwide Life and Annuity Insurance Co
OH
Data Engineer needed to design, implement, maintain, and support ETL, data warehousing, and enterprise data-integration workflows across relational databases, file systems, and service…
Added 21 mins ago
Consultant, Software Engineer
Nationwide Life and Annuity Insurance Co
OH
Software Engineer needed to design and write production scripts that resolve live application incidents across insurance platforms. Engage in mainframe development and support, including…
Added 21 mins ago
Consultant, Data Engineer
Nationwide Life and Annuity Insurance Co
OH
Software Engineer needed to design, develop, test, and implement scalable ETL/ELT data integration pipelines to acquire and centralize diverse, high-volume datasets from multiple source…
Added 21 mins ago
Specialist, Software Engineer
Nationwide Life and Annuity Insurance Co
OH
Software Engineer needed to develop and maintain end-to-end customer enterprise applications on AWS cloud platform utilizing EC2, EFS, and IAM. Create microservices based custom enterprise…
Added 21 mins ago
Consultant, Software Engineer
Nationwide Life and Annuity Insurance Co
OH
Software Engineer needed to develop batch and online mainframe COBOL/JCL/DB2/IMS and CICS/COBOL application within the insurance/underwriting domains. Perform object-oriented programming…
Added 23 mins ago
Principal Software Engineer
Fidelity Technology Group, LLC
Merrimack, NH
Fixed Income Technology is looking for a Principal Software Engineer to join the Trading Services team. As a member of our team, you will be working with product owners, UX designers, and…
Added 23 mins ago
FT
Principal Quant Developer
Fidelity Technology Group, LLC
Boston, MA
- $107,000 to $216,000 USD / year
…Technology group is seeking a highly motivated and curious Principal Quantitative Developer. In this role you will contribute to a dynamic and fast-paced development team supporting…
Added 26 mins ago
Principal Cybersecurity Engineer
Ally Bank
Detroit, MI
The Principal - Cyber Security Engineering works closely with members ofthe IPRM program to develop, implement and support a wide range of critical security controls at Ally. The engineer…
Added 28 mins ago
PI
Sr. Associate - Solutions Engineer
Pfizer Inc
NY · PA
- $79,400 to $132,400 USD / year
The Senior Associate, Solutions Software Engineer is a hands-on individual contributor who designs, builds, integrates, and supports digital solutions using approved enterprise platforms,…
Added 35 mins ago
Principal RF Engineer
CACI, INC.-FEDERAL
Springfield, VA
CACI is hiring a Principal Electrical Engineer that will Leads project teams deployed worldwide to install, maintain and upgrade complex electronic mission systems, security systems and…
Added 35 mins ago
Process Chemistry Supervisor
Amentum
Richland, WA
Monitor group and individual engineer performance and ensure appropriate communication to management is provided
Added 38 mins ago
Principal Software Development Engineer
Zscaler
San Jose, CA · Santa Clara, CA
Added 43 mins ago
XE
Distribution and Gas Planning Engineer (Staff, Senior, or Principal)
Xcel Energy
Minneapolis, MN
- $81,000 to $156,600 USD / year
The job summary below and responsibilities reflect the staff engineer level role . The successfully chosen candidate will be placed at a level that is commensurate with their skills and…
Added 45 mins ago
Principal Systems Engineer - Compute Platform Integration
Torc Robotics
Ann Arbor, MI
We are looking for a seasoned Principal Systems Engineer who can provide deep technical leadership across the full stack of compute and electrical integration - spanning hardware…
Added 46 mins ago
Principal Wireless/RF Engineer
Aerospace
San Jose, CA · Colorado Springs, CO
We're looking for an experienced and highly skilled Principal RF Design Engineer to join our thriving team in San Jose. In this pivotal role, you will provide leadership and direction in…
Added 47 mins ago
Senior Principal Systems Engineer II - Systems Architect
BAE Systems
Fort Wayne, IN
Job Description Senior Principal Systems Engineer II - Systems Architect

KBR

Principal Modeling & Simulation Software Engineer

Reston, VA, 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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More about this job

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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