Jobs in the United States

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2027 Summer Internship: Design Engineer- Low Cab Forward
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added just now
2027 Summer Internship: Design Engineer- Routings Development
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
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2027 Summer Internship: Vehicle Performance Test Engineer
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
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2027 Summer Internship: Design Engineer- Future Electrification
PACCAR
Denton, TX
…information technology, and distributes truck parts related to its principal…
Added 1 min ago
J
Sr. QA/Test Automation Engineer
Jobot
Gaithersburg, MD
- $140,000 to $175,000 USD / year
Senior QA / Test Automation Engineer – Senior, Lead & Principal Levels
Added 1 min ago
J
Software Engineer (JAVA)
Jobot
Gaithersburg, MD
- $140,000 to $175,000 USD / year
Software Engineer – Senior, Lead & Principal Levels
Added 4 mins ago
ML
Lead Instrumentation Engineer
Messer LLC
Bridgewater, NJ
- $15.92 USD / hour
The purpose of the Lead Instrument Engineer is to provide technical expertise for plant Instrumentation and analyzer designs, specifications, installation, repairs, operations and code…
Added 4 mins ago
ML
Lead Machinery Engineer
Messer LLC
Bridgewater, NJ
- $15.92 USD / hour
The purpose of the Lead Machinery Engineer is to provide technical expertise within Messer's Project Execution department regarding various forms of plant rotating equipment including…
Added 4 mins ago
Lead Pressure Vessel & Piping Engineer
Messer LLC
Bridgewater, NJ
The purpose of the Lead Pressure Vessel and Piping Engineer is provide technical expertise within Messer's Project Execution department regarding various forms of plant static equipment…
Added 4 mins ago
O
Lead Principal Application Software Engineer- Forward Deployed Engineer
Oracle
Trenton, NJ
- $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 4 mins ago
AC
Electrical & Controls Systems Specialist
American Crystal Sugar Co
Moorhead, MN
- $91,381.26 to $114,226.57 USD / year
The principal accountabilities include, but are not limited to:
Added 9 mins ago
CC
Principal AI Engineer
Continental Casualty Company
Chicago, IL
- $97,000 to $189,000 USD / year
Acts as one of principal engineers for CNA's AI-native engineering platform, designing the end-to-end system spanning agentic coding workflows, skills and agent marketplaces, AI-augmented…
Added 11 mins ago
Principal Site Reliability Engineer
Hitachi Global
Raleigh, NC · Houston, TX · Atlanta, GA · Broomfield, CO
Hitachi Energy is seeking a Principal Site Reliability Engineer to ensure the secure, reliable, and efficient operation of cloud‑hosted environments that support ESS software products and…
Added 15 mins ago
SB
Lead Functional Safety Engineer
Standard Bots
Glen Cove, NY (Hybrid 3 days/week onsite), NY
- $170,000 to $230,000 USD / year
We're hiring a Lead, but if you're a strong functional safety engineer at Senior, Staff or Principal level, we still want to hear from you. We'll level the role and the offer to the person.
Added 20 mins ago
Principal Electrical Device Design Engineer - Indianola, PA
Bayer
Indianola, PA
Principal Electrical Device Design Engineer – Indianola, PA
Added 21 mins ago
Sr. Directory Services Engineer I (6228)
MetroStar
Washington, DC
As a Sr. Directory Services Engineer I , work as part of a collaborative and high-performing team providing your expertise to deliver solutions within the highest levels of the federal…
Added 24 mins ago
Principal Electrical Device Design Engineer - Indianola, PA
Bayer
Indianola
Principal Electrical Device Design Engineer – Indianola, PA
Added 26 mins ago
Senior Principal Solution Architect, Security and Risk
ServiceNow
Dallas, TX
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 26 mins ago
Senior Principal Solution Architect, Security and Risk
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 26 mins ago
Senior Principal Solution Architect, Security and Risk
ServiceNow
Remote, United States
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 35 mins ago
Principal Systems Engineer
Aerospace
Phoenix, AZ
As the Principal Systems Engineer, you will guide a team responsible for the requirements-based engineering of APU control system functions and components. While providing direction and…
Added 37 mins ago
Principal Software Engineer
Highmark Health
Remote, United States
The job is an integral member of an agile software engineer team responsible for building scalable software applications across all digital channels to serve our customers. The position…
Added 39 mins ago
Principal Digital Design Engineer
onsemi
Allen, TX
We are seeking a Principal Digital Design Engineer based in Allen, TX, to own the IO subsystem for onsemi’s microcontroller platform. In this role, you will be responsible for defining,…
Added 51 mins ago
UI
QMS Engineer III
UNIVERSAL INSTRUMENTS CORPORATION
Conklin, NY
- $85,000 to $95,000 USD / year
Added 51 mins ago
NH
CCS Principal Software Engineer
Nomura Holdings, inc.
Jacksonville, FL
- $95,000 to $125,000 USD / year

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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