Jobs in the United States

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Added 1 min ago
Senior Instrument & Controls Engineer
Westinghouse Electric Company, LLC
Warrendale, OR
As a Senior Instrumentation & Controls Engineer you will perform integrated testing activities on Safety Instrumentation and Control (I&C) Systems for Commercial Nuclear Plant equipment.…
Added 6 mins ago
IG
Sr. Buoyancy Engineer
Insight Global
Costa Mesa, CA
- From $77 USD / hour
Contribute to test planning and execution for buoyancy validation
Added 11 mins ago
Sr SW Design Quality Assurance Engineer
Dexcom
Remote, United States
You will guide Software Design and Test teams on software design assurance activities such as requirements traceability, software configuration management, tool validation, and integration…
Added 12 mins ago
Mac Engineer II
Akima, LLC
Ashburn, VA
Cloud Lake is looking for a Mac Engineer II to work in Ashburn, VA. As an integral member of the CBP End User Device IT Management Services team, the Mac Support Engineer II (Intermediate)…
Added 13 mins ago
Support Engineer
Skild AI
San Mateo, CA
We are looking for a Support Engineer to develop the systems and processes that ensure quality, reliability, and performance across our robotics and autonomous platforms. This role is…
Added 15 mins ago
O
Principal Core Infrastructure Engineer
Oracle
Nashville, TN
- $114,600 to $234,600 USD / year
Leads development and begins architecting components of scalable, elastic distributed systems. Defines and enforces scalability requirements for owned components; optimizes code and data…
Added 19 mins ago
Plasma and Laser Physics Engineer
ASML US, LP. (US30)
San Diego, CA
As a Plasma and Laser Physics Engineer within the EUV Source Performance team, you will play a critical role in validating and optimizing EUV source performance to ensure products meet or…
Added 20 mins ago
Senior Director, Forward Deployed Engineer - Operational AI
Aerospike, Inc.
Remote, United States
As a Senior Director, Forward Deployed Engineer at Aerospike, you will work directly with Global 2000 engineering teams to build that fabric. You will own the technical solution from…
Added 30 mins ago
Industrial Control System (ICS) Automation Consultant
RED Group
Metairie, LA
Design, write, test and document PLC and HMI software.
Added 33 mins ago
Process Engineer
Northrop Grumman
Rolling Meadows, IL · Rolling Meadows
The Process Engineer will be part of Northrop Grumman's Manufacturing Engineering team, where they will work on products such as Electro-Optical Distributed Aperture (EO DAS), Internal FLIR…
Added 34 mins ago
2027 Associate Systems Engineer - San Diego CA
Northrop Grumman
San Diego, CA · San Diego
Supporting technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses may be performed at…
Added 34 mins ago
Principal Engineer Electrical
Northrop Grumman
Chandler, AZ · Chandler
The Principal Engineer Electrical - Level 3 supports program analyses and testing of Ionizing radiation effects on electronics systems. Examples include x-ray and/or electromagnetic…
Added 36 mins ago
Manufacturing Systems Engineering Manager 2 (20637 - 20634)
Northrop Grumman
Roy, UT · Roy
The Manufacturing Systems Engineer function develops requirements, performs technical planning, manufacturing system development/integration, verification and validation, and evaluates cost…
Added 39 mins ago
Cybersecurity Engineer (Cloud)
Amentum
Carson City, NV
Configure and test security policies, infrastructure-as-code controls, deployment automation, and supporting integrations in coordination with cloud platform and application owners.
Added 39 mins ago
Staff Engineer, Design Verification
Micron Technology
San Jose, CA · 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 39 mins ago
Product Pathfinding Engineer- HIG-TPG
Micron Technology
Boise, ID · Boise
Work closely with other PE groups like System Engineering, Component Validation, and Media Health teams. Together, plan responses to future technology node changes. Ensure adequate test…
Added 56 mins ago
Data and AI Product Engineer
Information Systems
United States
The Data and AI Product Engineer designs and develops modern data, analytics, AI, and web-based products that enable users to interact with data and analytics in intuitive ways. This role…
Added 1 hour ago
Mechanical Engineer 2
Lam Research
Fremont
Support the full life cycle of mechanical and electro-mechanical systems from concept to productization including conceptualization, designing, CAD modeling, development, and…
Added 1 hour ago
Mechanical Engineer 5
Lam Research
Fremont
Support the full life cycle of mechanical and electro-mechanical systems from concept to productization including conceptualization, designing, CAD modeling, development, and…
Added 1 hour ago
Satellite Hardware Development Engineer, Amazon Leo
Amazon Kuiper Manufacturing Enterprises LLC
San Diego, CA
As a Hardware Development Engineer, you will lead the design workstream on some of the most innovative, challenging, and exciting gateway systems in industry. You will engage with an…
Added 1 hour 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 1 hour ago
Principal Engineer Electrical
SP - Launch Vehicles
United States
The Principal Engineer Electrical - Level 3 supports program analyses and testing of Ionizing radiation effects on electronics systems. Examples include x-ray and/or electromagnetic…
Added 1 hour ago
2027 Associate Systems Engineer - San Diego CA
CORP-Corporate Office
United States
Supporting technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses may be performed at…
Added 1 hour ago
Technical Content Engineer, Claris
Apple
Sunnyvale, CA
You'll work within Documentation & Localization and partner closely with engineering, product, and our team of experienced technical writers. The engineering work is central to this role:…
Added 1 hour ago
Principal Project Engineer - Electrical
Westinghouse Electric Company
New Stanton, PA

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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