Jobs in the United States

25+ jobs

Save this search

Added 11 mins ago
Senior Staff/Principal Engineer, Foundation Model Compute Infra
Apple
Cupertino, CA · Santa Clara, CA · Seattle, WA
As a Senior Staff/Principal Engineer on the Foundation Model Compute Infrastructure team, you will architect, build, and operate large-scale infrastructure powering foundation model…
Added 11 mins ago
Distinguished Platform Engineer
ServiceNow
Santa Clara, CA
As a Principal Engineer in HRSD, you set the technical direction for model-driven capability across the HR domain, the agentic and conversational experiences that interpret employee,…
Added 11 mins ago
Principal Technical Consultant-Federal
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 16 mins ago
Principal Systems Engineer
Onto Innovation Inc-US
United States
We are seeking a Principal Systems Engineer to independently contribute to the development of complex automated optical inspection and metrology platforms for the semiconductor industry.…
Added 19 mins ago
TI
Principal Solutions Engineer
Trimble Inc.
Boulder, CO
- $143,300 to $202,200 USD / year
Transform the Future of Infrastructure: Principal Sales Solutions Architect - Asset Lifecycle Management (ALM)
Added 21 mins ago
N
Principal Product Engineer - Advanced Technology
nLIGHT
Camas, WA
- $125,000 to $160,000 USD / year
nLIGHT is searching for a Principal Advanced Technology Product Development Engineer to lead and work within a multidisciplinary team focused on the design, documentation, and release to…
Added 23 mins ago
Senior Principal Engineering Support Specialist
General Dynamics Mission Systems, Inc
Remote, United States
As a Senior Principal Engineer Support Specialist, you’ll serve as prime consultant and external spokesperson for the organization on highly significant matters relating to policies,…
Added 26 mins ago
Sr. Executive Research Recruiter, Global Speciality Recruiting
Amazon.com Services LLC
Austin, TX · Nashville, TN · Seattle, WA · Santa Clara, CA · Arlington, VA · New York, NY
Executive Advisory: Serve as talent adviser to leaders across Amazon - educating hiring managers about the external Principal Engineer demographic. Provide strategic guidance to executive…
Added 28 mins ago
Chemical Engineer
Oak Ridge National Laboratory
Oak Ridge, TN
The successful candidate, in collaboration with principal investigators and project management at ORNL, will be a participating member in projects that design, fabricate, assemble, and…
Added 42 mins ago
SO
Regional Transportation Director - Grand Junction
State of Colorado
Grand Junction, CO
- $14,500 to $15,300 USD / month
…Team, reporting to the Executive Director, and serves as the principal strategist and steward of resources for their region. The person holding this position provides visionary yet…
Added 47 mins ago
Network Engineer Principal - TS/SCI with Polygraph
GD Information Technology, Inc.
United States
Transform technology into opportunity as a Network Engineer Principal at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your engineering…
Added 48 mins ago
AC
Control Systems Engineer-Factory
American Crystal Sugar Co
Drayton, ND
- $109,993.9 to $137,492.38 USD / year
We are seeking a motivated individual with strong instrumentation and controls experience to join our team as a Control Systems Engineer at the Drayton factory. The purpose of this position…
Added 49 mins ago
Program Manager
Vanir Construction Management, Inc.
El Centro, CA · San Diego, CA
Primary contact and liaison for owner and principal partner entities for the contract, design, systems, procedures and related deliverables
Added 51 mins ago
Software Engineer IV
ARUP Laboratories
Salt Lake City, UT
A Software Engineer IV is a senior engineer and leading contributor to software development projects, designing and delivering software products and services. The engineer takes…
Added 1 hour ago
Senior Principal Engineer
Autodesk
CA · San Francisco, CA · ON, CA · San Francisco
GET Engineering is seeking an experienced Senior Principal Engineer – AI and Engineering Excellence to lead the technical strategy and evolution of our cloud platform, developer experience,…
Added 1 hour ago
Senior Engineer - Structural - Mi-Tech Services, Inc.
Michels Corporation
Salt Lake City, UT · 180 W Ostend St Baltimore, MD · Renton, WA · South Jordan, UT
In your role as a senior structural engineer at Mi-Tech, you’ll design a wide variety of temporary and permanent structures associated with the construction of utility, infrastructure and…
Added 1 hour ago
A
RF Microwave Engineer
Actalent
Dallas, TX
- $80 to $95 USD / hour
Basic Qualifications Principal Electronics Engineer:
Added 1 hour ago
O
Principal Platform Software Engineer
Oracle
Nashville, TN
- $104,500 to $234,600 USD / year
As a Principal Software Developer, you will provide technical leadership in designing and building a scalable, highly available, and reliable artifact management system for OCI. You will…
Added 1 hour ago
Senior Engineer - Structural - Mi-Tech Services, Inc.
Michels Corporation
Milwaukee, WI · 180 W Ostend St Baltimore, MD · Renton, WA
In your role as a senior structural engineer at Mi-Tech, you’ll design a wide variety of temporary and permanent structures associated with the construction of utility, infrastructure and…
Added 1 hour ago
Senior Engineer - Structural - Mi-Tech Services, Inc.
Michels Corporation
Baltimore, MD · 180 W Ostend St Baltimore, MD · Renton, WA
In your role as a senior structural engineer at Mi-Tech, you’ll design a wide variety of temporary and permanent structures associated with the construction of utility, infrastructure and…
Added 1 hour ago
Senior Engineer - Structural - Mi-Tech Services, Inc.
Michels Corporation
Renton, WA · 180 W Ostend St Baltimore, MD
In your role as a senior structural engineer at Mi-Tech, you’ll design a wide variety of temporary and permanent structures associated with the construction of utility, infrastructure and…
Added 1 hour ago
Java Full Stack Software Engineer - Mid Level
United Services Automobile Asn
United States
As a dedicated Java Full Stack Software Engineer - Mid Level, you will join a dynamic, startup-minded team within the Investment Experience Technology organization at USAA, part of the…
Added 1 hour ago
Principal Engineer, Storage/Performance
Amazon Web Services, Inc.
Seattle, WA
As a Principal Engineer on the Storage team, you will help build a high performance storage engine and storage service that is able to support all types of database workloads. You will…
Added 1 hour ago
Principal Database Engineer, Distributed SQL
Amazon Development Center U.S., Inc.
Seattle, WA · East Palo Alto, CA
As a Principal Database Engineer for Aurora DSQL, you will lead technical enablement for our most strategic and business-critical customers. You will solve complex migration and query…
Added 1 hour ago
Senior/Principal Systems Modeling & Simulation Engineer
KBR Wyle Services, LLC
Greenbelt, MD
KBR is seeking a Senior/Principal Systems Modeling & Simulation/Systems Engineer to join the Structural Engineering and Analysis team supporting NASA Goddard Space Flight Center Programs.…

Trinzic

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 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.

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