Jobs in the United States

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Added 2 mins ago
UA
Apprentice Engineer- UNION
US AMR-Jones Lang LaSalle Americas, Inc.
San Francisco, CA
- $49.73 USD / hour
…services. We take our responsibility to protect the personal information provided to us seriously. Generally the personal information we collect from you are for the purposes of processing…
Added 7 mins ago
IT Systems Engineer
M9 Solutions
Sunnyvale, CA
…include IT Talent Solutions, Data Delivery & Analytics, Cyber Security, Cloud Migration, Applications and Infrastructure, Software Development, and Finance &…
Added 8 mins ago
Cyber Threat Engineer
System One
Merrifield, VA
Bachelor's degree in cybersecurity, computer science, information technology, information systems, engineering, or a related technical discipline preferred; relevant experience may be…
Added 10 mins ago
Radioisotope Processing Facility (RPF) Modular Hot Cell Program Manager
Oak Ridge National Laboratory
Oak Ridge, TN
Support the Project Director with communicating and reporting project status and performance information to all DOE stakeholders, ORNL staff members and collaborators.
Added 12 mins ago
Resident Services Coordinator
KW Property Management
Bal Harbour, FL
…include setup requests and times. Provide guest list and event information to valet, security, housekeeping staff and arrange for additional staffing as required within the cost and…
Added 13 mins ago
Advanced Mechanical Engineer, Tester Lead
General Dynamics Mission Systems, Inc
Pittsfield, MA
CLEARANCE REQUIREMENTS:Department of Defense Secret security clearance is required at time of hire. Applicants selected will be subject to a U.S. Government security investigation and must…
Added 16 mins ago
Development Manager, Amazon Cloud Management Frameworks
Amazon.com Services LLC
Seattle, WA
The MAGIC team (Multi Account Governance in the Cloud) is a part of Amazon Security's Amazon Cloud Management Foundations (ACMF) group in the Secure Tools Foundation (STF) division. We own…
Added 16 mins ago
Data Center Chief Engineer
Amazon Data Services, Inc.
New Albany, OH
The Data Center Chief Engineer (CE) is responsible for ensuring that all electrical, mechanical, and fire/life safety equipment within the data center is operating at peak efficiency. This…
Added 17 mins ago
Outside Commercial Sales Representative-Must Have Entry Door Experience
DH Pace
Houston, TX
…of commercial, industrial, and residential door, docking and security products. In 2026, DH Pace is celebrating its 100th anniversary in…
Added 17 mins ago
New Construction Commercial Sales Representative - Selling to General Contractors
DH Pace
Denver, CO
…of commercial, industrial, and residential door, docking and security products. In 2026, DH Pace is celebrating its 100th anniversary in…
Added 17 mins ago
Electrical Field Engineer
Bechtel Corporation
Port Arthur, TX
…lasting positive impact. We serve the Infrastructure; Nuclear, Security & Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from…
Added 17 mins ago
Piping Field Engineer
Bechtel Corporation
Port Arthur, TX
…lasting positive impact. We serve the Infrastructure; Nuclear, Security & Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from…
Added 17 mins ago
Instrumentation Field Engineer
Bechtel Corporation
Port Arthur, TX
…lasting positive impact. We serve the Infrastructure; Nuclear, Security & Environmental; Energy; Mining & Metals, and the Manufacturing and Technology markets. Our services span from…
Added 17 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 17 mins ago
A
Manufacturing Engineer
adecco
Corry, PA
- $70,000 USD / year
Adecco is currently seeking an experienced full-time Manufacturing Engineer on 1st shift in Corry Pa(6am to 4:30pm/Monday thru Thursday). The ideal candidate will be responsible for…
Added 17 mins ago
A
Senior Quality Engineer - DIRECT HIRE
adecco
Devens, MA
- $85,000 to $130,000 USD / year
Adecco is hiring a Senior Quality Engineer in Devens, MA!
Added 19 mins ago
NA
Senior Project Manager
North America
Atlanta, GA
- $131,456 USD / year
Education and Experience: Bachelor of Science degree in Computer Science, Engineering (any branch), Information Technology, Systems/Technology Management or Computer/Management Information…
Added 20 mins ago
Software Engineer - Security Operations
Electrosoft
Atlanta, GA
Candidate will hold a ComSci/CIS/InfoSec/Cybersecurity/IT related bachelor’s degree (or higher) with 10 years of Information Security work experience or an equivalent combination of…
Added 22 mins ago
Fleet and Facilities Coordinator
Allied Universal
Dallas, TX
Join Allied Universal® Technology Services, a global leader in transforming the security industry. We integrate advanced technology - video surveillance, electronic access control, alarm…
Added 22 mins ago
Network Engineer
Good Samaritan
Vincennes, IN
Job Summary: Design and implement computer and information networks, such as local area networks (LAN), wide area networks (WAN), intranets, extranets, and other data communications…
Added 22 mins ago
VoIP Network Engineer
Good Samaritan
Vincennes, IN
Job Summary: We are seeking a VoIP Network Engineer to join our Infrastructure Network team and lead the design, operation, and modernization of our enterprise voice infrastructure. This…
Added 22 mins ago
MD
Stationary Operations Engineer 3rd Shift- Alexandria, VA
M.C. Dean, Inc
Alexandria, VA
- $43.57 to $54.47 USD / hour
Clearance Requirement: Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to…
Added 23 mins ago
Associate Design Engineer I - Civil New Graduate
Fluor Careers
Houston, TX
Engineer-in-Training achievement status accomplished
Added 24 mins ago
Engineer III
at Marriott
Irving, TX
Follow all company and safety and security policies and procedures; report any maintenance problems, safety hazards, accidents, or injuries; complete safety training and certifications; and…
Added 24 mins ago
Lead Software Engineer
JPMC page
Jersey City, NJ
As a Lead Software Engineer at JPMorganChase within Cloud Foundational Services, you will build secure, scalable, self-service platform capabilities that standardize how teams consume AWS…

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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