Jobs in the United States

25+ jobs

Save this search

Added just now
A
Civil Engineer
Actalent
Frankfort, KY
- $30 to $40 USD / hour
Job Title: Civil EngineerJob DescriptionThis Civil Engineer role focuses on the design and construction support of solid waste landfill facilities, including grading, stormwater management,…
Added just now
A
Project Engineer
Actalent
Winnebago, IL
- $25 to $27 USD / hour
On-Site Project Engineer | Community Solar Projects
Added 2 mins ago
Integration Engineer 4 (Email / Proofpoint)
Capital One
McLean, VA · Richmond, VA
Do you love building and pioneering in the technology space? Do you enjoy solving complex business problems in a fast-paced, collaborative, inclusive, and iterative delivery environment? At…
Added 6 mins ago
Cyber Threat Engineer
System One
Merrifield, VA
Develop, test, document, and maintain YARA rules and supporting detection processes.
Added 7 mins ago
AP
Test Engineer
Ardent Principles, Inc.
Chantilly, VA
- $130,000 to $260,000 USD / year
We are seeking a talented Test Engineer to help ensure the quality, reliability, and performance of modern web applications and backend services. You'll work alongside developers,…
Added 11 mins ago
Advanced Mechanical Engineer, Tester Lead
General Dynamics Mission Systems, Inc
Pittsfield, MA
As a mechanical engineer for Fleet Ballistic Missile Fire Control programs, you’ll lead a cross functional team responsible for all Mechanical Engineering Tester support in the Pittsfield,…
Added 11 mins ago
Advanced Software Engineer - AI Reliability Engineering
General Dynamics Mission Systems, Inc
Remote, United States
…and everything in between. You will be part of the Operations Technology team, a forward deployed engineering group that embeds directly with users to understand workflows, define…
Added 14 mins ago
Electrical Field Engineer
Bechtel Corporation
Port Arthur, TX
…Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from initial planning and investment, through start-up and operations. Core to…
Added 14 mins ago
Piping Field Engineer
Bechtel Corporation
Port Arthur, TX
…Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from initial planning and investment, through start-up and operations. Core to…
Added 14 mins ago
Instrumentation Field Engineer
Bechtel Corporation
Port Arthur, TX
…Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from initial planning and investment, through start-up and operations. Core to…
Added 15 mins ago
Fuels Engineer
Chevron U.S.A. Inc. - Chevron Global Downstream
Richmond, CA
The Fuels Technology (FT) team is comprised of chemists, engineers, and technical specialists who are responsible for the research and development, quality assurance, and integrity…
Added 15 mins ago
Sr. Presales Systems Engineer
Forescout Technologies Inc.
United States
Forescout has an excellent opportunity for a strategic and business-focused Sr. Presales Systems Engineer to join our high-energy, multi-cultural, world-changing team. As the Sr. Presales…
Added 20 mins ago
DT
Junior Systems Engineer - Colorado Springs, CO
Davidson Technologies, Inc.
Colorado Springs, CO
- $97,000 to $110,000 USD / year
…The MDS department delivers cutting-edge expertise in concept development, architectural design, requirements generation and flow-down, modeling and simulation, systems analysis,…
Added 20 mins ago
DT
Senior Test Engineer - Woburn, MA
Davidson Technologies, Inc.
Woburn, MA
- $187,000 to $214,000 USD / year
Davidson is seeking a Senior Test Engineer in Woburn, MA
Added 20 mins ago
A
Senior Avionics Hardware Engineer – Military GPS (MAVRC).
Aurex
El Segundo, CA
- $165,000 to $215,000 USD / year
…defense to hardened networks and orbital systems, we design, test, and deliver the platforms that turn unproven ideas into battlefield-ready…
Added 20 mins ago
DT
Principal Systems Engineer - Woburn, MA
Davidson Technologies, Inc.
Woburn, MA
- $187,000 to $213,000 USD / year
…The MDS department delivers cutting-edge expertise in concept development, architectural design, requirements generation and flow-down, modeling and simulation, systems analysis,…
Added 24 mins ago
System Safety Engineer SAFE
Point Blank Enterprises
Tempe, AZ
Safe, Inc. is a highly specialized product development, engineering, and technology research firm based in Tempe, Arizona, focused on crashworthiness, aviation safety, and crew…
Added 27 mins ago
Automation Engineer
Morgan Engineering Systems Inc
Alliance, OH
We are seeking a full-time Automation Controls Engineer to join our growing team in Alliance, Ohio. This role is essential in designing and developing advanced controls solutions for…
Added 29 mins ago
UG
Senior Software Engineer
UnitedHealth Group
Boston, MA
- $91,700 to $163,700 USD / year
Optum is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes…
Added 34 mins ago
A
Mechanical Engineer
Actalent
PARSIPPANY TROY HILLS, NJ
- $100,000 to $140,000 USD / year
As a Senior Mechanical Engineer, you'll serve as both a technical leader and project leader, guiding projects from early concept development through construction completion.
Added 35 mins ago
A
Controls Engineer
Actalent
Greenfield, IN
- $52.88 to $60.1 USD / hour
Support the development of technology, resources, and production requirements for power module programs, including specification and implementation of capital equipment and automation…
Added 35 mins ago
Senior Software Engineer, Embedded Systems, Platforms and Devices
Google
Kirkland, WA · Seattle, WA
…mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google’s needs with opportunities to switch teams and projects as…
Added 36 mins ago
Software Engineer (Senior)
BAE Systems
Sterling, VA
We are looking for experienced Software Engineers to join our technology-based program supporting a key government customer. This program will deliver engineering services for network…
Added 36 mins ago
Senior Principal Engineer – Ground/Application Software Integration
BAE Systems
Broomfield, CO · Westminster, CO · Boulder, CO
…looking to expand our team with a talented and energetic software engineer focused on delivering high-quality, embedded software and associated test infrastructure. This position supports a…
Added 36 mins ago
Principal Software Engineer - Systems Integration
BAE Systems
Nashua, NH · Manchester, NH
…cross-functional, multi-disciplinary team to design, integrate, debug, and test web-based analytics and visualization tools. Focused on delivering innovative Electronic Warfare (EW)…

KBR

Principal Modeling & Simulation Software Engineer

Reston, VA, United States

On-site

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

Apply About employer

Applications open in a new tab.

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.

Apply About employer

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

Report this job