Jobs in the United States

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Added 1 min ago
AI Operations Administrator - Gravitee - Remote US
SitusAMC
Indianapolis, IN
…and provides a foundation for growth into the AI Operations Engineer…
Added 55 mins ago
Traveling Senior Commissioning Manager - MSG - Dat
Turner Construction
Jackson, MS
…Manage site-specific end-to-end Commissioning activities during Level 1 through Level 5 for delivery of new or retrofit of existing facility. Establish and maintain collaborative working…
Added 1 hour ago
RE
Network Administrator I
Rochester Electronics, LLC
Newburyport, MA
- $63,000 to $85,680 USD / year
Assist and support the Network Engineer with projects, upgrades, maintenance, and troubleshooting.
Added 1 hour ago
Specialist, Systems Engineer - RC-135 Computer Systems Administrator
L3Harris
Offutt Air Force Base, NE
Job Title: Specialist, Systems Engineer - RC-135 Computer Systems Administrator
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IPS Analysis Chief (Associate Project Manager 2)
City of New York
Queens, NY
…Upstate New York, and has a wastewater conveyance and treatment system capable of processing over 1.3 billion gallons of wastewater per day to protect the environment and the city’s…
Added 1 hour ago
CO
Assistant Civil Engineer
City of Sacramento
Sacramento, CA
- $38.76 to $54.55 USD / hour
The Assistant Civil Engineer is a journey-level classification filled with multiple incumbents. Incumbents are responsible for performing moderately difficult professional engineering work…
Added 1 hour ago
District Planning Engineer (Civil Engineer IV)
State of Massachusetts
Lenox, MA
…and Responsibilities * Coordinates with Project Development Engineer, Projects Engineer, Maintenance, Bridge, Traffic, and Design Sections as needed to initiate MassDOT District projects in…
Added 1 hour ago
Assistant District Construction Engineer/Design-Build (Civil Engineer V)
State of Massachusetts
Taunton, MA
…Responsibilities * Manages Construction Phase Services for Owner’s Engineer for Alternative Delivery & other Projects for the Items of Work identified in the MassDOT Scope of Services. *…
Added 1 hour ago
Electrical / Physics Engineer Advanced Imaging
MIT Lincoln Laboratory
Lexington, MA
The Advanced Imager Technology Group performs research and development of imager devices and subsystem-level technology for the DoD and scientific community. Our efforts include visible-…
Added 1 hour ago
Manufacturing Engineer 3 - 31037
HII
Pocasset, MA
Support system-level integration, functional testing, environmental testing, and acceptance testing in accordance with defense and customer requirements.
Added 2 hours ago
Manufacturing Systems and Simulation MP&P Engineer
The Boeing Company
North Charleston, SC
Advanced Production and Automation is seeking a Manufacturing Systems and Simulation MP&P Engineer – Modeling & Simulation (Mid-Level or Lead) for the Production System Modeling, Simulation…
Added 2 hours ago
Lead Inspection Engineer - AMRT
GE Vernova
Greenville, SC
As a Lead Inspection Engineer within the Advance Manufacturing and Repair Technologies (AMRT) Inspection Team, you will develop and deploy inspection and measurement solutions that support…
Added 2 hours ago
UX/Human Factors Engineer
MIT Lincoln Laboratory
Lexington, MA
MIT Lincoln Laboratory Assistant Staff provide critical support for domain-level innovative research supporting the Laboratory's national security mission. They prototype state-of-the-art…
Added 2 hours ago
RF Communications System Engineer/Analyst-Associate Staff
MIT Lincoln Laboratory
Lexington, MA
…communications systems. Example daily activities could include system analysis (e.g., link budgets, detection and jamming performance modeling) and/or elements of RF system design depending…
Added 2 hours ago
Senior Geothermal Consultant Job Details | Black & Veatch Family of Companies
Black & Veatch
Kansas City, MO
+ Support Owner's Engineer / Independent Engineer scopes through disciplined technical review.
Added 2 hours ago
Loads & Dynamics Engineering Manager
The Boeing Company
Hazelwood, MO
The Boeing Defense, Space & Security (BDS) team is seeking a Loads & Dynamics (L&D) First Level Manager to join our Air Dominance team in Hazelwood, MO.
Added 2 hours ago
Network Engineer, Foundation & Support
Meta
Jefferson City, MO
Meta's Edge & Network Services (ENS) team is actively looking for a Network Engineer to help us tackle the unique set of challenges and opportunities we face, while contributing to our…
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Sr. Manufacturing & Controls Engineer
Clarios
Saint Joseph, MO
The Sr. Manufacturing & Controls Engineer will ensure production equipment operates safely, reliably, and efficiently. This role will manage and support manufacturing projects of varying…
Added 2 hours ago
Software Release Systems Engineer
Ford Motor Company
Dearborn, MI
p]:inline">Own the system-level design and define the overarching architecture. Decompose high-level requirements into logical component responsibilities and define precise integration…
Added 2 hours ago
High Voltage Core Systems Engineer
Ford Motor Company
Dearborn, MI
Support the development of generic high voltage electrical architecture, including high voltage electricallayout and subsystem interaction, to optimize high voltage system-level designs.
Added 3 hours ago
VV
Senior Optical Engineering Specialist
Veracity Ventures Inc.
Rochester, NY
- $120,000 to $155,000 USD / year
Experience supporting system-level performance verification.
Added 3 hours ago
VV
Lead Systems Engineering I Systems Integration Test
Veracity Ventures Inc.
Rochester, NY
- $140,000 to $178,000 USD / year
The ideal candidate is a senior-level Systems Integration and Test Engineer with strong experience developing, integrating, verifying, and qualifying complex electro-optical or…
Added 3 hours ago
IT PROGRAM MANAGER (APPSW/SYSANALYSIS)
U.S. Northern Command
Peterson AFB, CO
…Command and United States Northern Command (N/NC) Directorate level Knowledge Management Engineer. Responsibilities Designs and develops custom software applications. Serves as the…
Added 3 hours ago
Sr. Systems Engineer - EADGE-T
Lockheed Martin
Virtual Three, CO
…and bring new capabilities to the UAE customer. The EADGE-T system is an integrated air missile defense, air battle management capability for the UAE integrating existing sensors, weapons…
Added 3 hours ago
Circuit Design Engineering Associate Manager, Avionics, Secret Clearance
Lockheed Martin
Littleton, CO
Electronics hardware design, development and test experience of avionics electronics, at the circuit card and unit level.

Trinzic

Principal Modeling & Simulation Engineer

Reston, VA, United States

On-site

Compensation range for Virginia is $157,000 to $182,000.

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Job details

Pay: Compensation range for Virginia is $157,000 to $182,000.
Workplace: On-site
Posting language: English
Posted: Nov 5, 2026

Original job description

Title:

Principal Modeling & Simulation 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 Principal Modeling & Simulation Engineer to join a dynamic, high-performing, multi-disciplinary team consisting of operational military and intelligence subject matter experts (SMEs), operations research analysts, modelers, and software engineers who conduct modeling, simulation, and analysis (MS&A) of emerging concepts using advanced MS&A techniques and tools. This team employs mission engineering, Joint operational planning, and emerging operational concepts to conduct kill chain and kill web analyses in support of combatant commands and Echelon 1 Department of War stakeholders. The selected candidate will:

Work independently on complex modeling and simulation tasks with minimal oversight.
Be able to think creatively and offer grounded, out-of-the-box solutions when appropriate.
Be comfortable working in a dynamic environment and with making or supporting decisions under uncertainty.
Support modeling, simulation, and software development efforts across the full analytic and software development lifecycles.
Support the analytic team lead in the execution of study plans.
Collaborate with military subject matter experts and other stakeholders to characterize architectures and concepts under study in the simulation environment.
Contribute to the development of modeling approaches, experiment designs, and analytic methods.
Instantiate combat system, platform, and behavior models in the simulation environment.
Instantiate kill chains, battle management command and control relationships, and other scenario-specific mission and operational factors in the simulation environment.
Support the development and instantiation of an experiment design in the simulation environment.
Provide technical guidance to less experienced engineers and analysts when required.
Contribute to the creation of quality deliverables and reports and quality control thereof.

Work Environment:

Location: On-site
Travel Requirements: Minimal 0-20%
Working Hours: Standard

Qualifications:

Required:

Bachelor of Science in Computer Science, Operations Research, or other STEM field, plus 8 years of relevant experience
5+ years of demonstrated proficiency developing and employing mission-level models within AFSIM or comparable simulation environments
Proven ability to translate models, behaviors, and other implementation concepts between disparate simulation frameworks.
Proficiency in C++, Python, or other programming language
Active Top-Secret clearance with Sensitive Compartmented Information (SCI) and Special Access Program (SAP) eligibility

Desired:

Master’s Degree in Computer Science, Operations Research, or other STEM field, with 10 years of relevant experience
6+ years of demonstrated proficiency developing and employing mission-level models within AFSIM or comparable simulation environments
Proficiency in model-based systems engineering tools such as CAMEO
Proficiency in SysML

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 $157,000 to $182,000.

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- and 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 defense and national security and working on projects that matter, we encourage you to apply and join our team at KBR. Let's shape the future together.

KBR Benefits

KBR offers a selection of competitive lifestyle benefits which 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 KBRAt 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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