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Senior Modeling & Simulation Engineer

Trinzic

Reston, VAFull-time$130–160K/yrSeen todaySeen in employer's feed today

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At a glance

Compensation
$130–160K/yr
Location
Reston, VA
Schedule
Full-time
Work Authorization
US work authorization required

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

TS/SCI clearanceBachelor's degree

Job overview

The Senior Modeling & Simulation Engineer will join a multidisciplinary team conducting modeling, simulation, and analysis of emerging concepts for national security and space missions. The role supports mission engineering studies and operational analyses for combatant commands and Department of War stakeholders, using models, experiment designs, and analytic methods. The position is on-site in Reston, Virginia, and requires an active Top-Secret clearance with SCI and SAP eligibility.

Skills & qualifications

RequiredNice to have

Skills

Mission-Level ModelingAFSIMSimulation Framework TranslationProgrammingC++PythonMission EngineeringOperational AnalysisCAMEOSysML

Qualifications

Bachelor's in STEM5 Years Relevant Experience3 Years Mission-Level ModelingActive Top-Secret ClearanceSCI and SAP EligibilityMaster's in STEM7 Years Relevant Experience5 Years Mission-Level Modeling

Benefits

401(k) Match
Medical Insurance
Dental Insurance
Vision Insurance
Paid Time Off
Relocation Assistance

Full job description

Title:

Senior 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 Senior 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:

  • Independently execute modeling, simulation, and analysis tasks in support of mission engineering studies and operational analyses. Provide technical recommendations and contribute to the planning and execution of study activities.

  • 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 study execution through development of models, experiment designs, data collection, and analytic products.

  • Collaborate with military subject matter experts and other stakeholders to characterize architectures and concepts under study in the simulation environment.

  • Apply established modeling approaches, experiment designs, and analytic methods while contributing recommendations for improvement.

  • 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.

  • Collaborate effectively with multidisciplinary teams and share technical expertise with peers when appropriate. Lead focused modeling, simulation, or analysis tasks and coordinate activities across multidisciplinary team members as 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 5 years of relevant experience

  • 3+ 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 7 years of relevant experience

  • 5+ years of demonstrated proficiency developing and employing mission-level models within AFSIM or comparable simulation environments

  • Mission engineering or operational analysis experience

  • 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 $130,000 to $160,000.

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.

How this job compares

Set against the 509 open Simulation Engineer jobs on Olive Jobs, counted November 5, 2026.

Pay
  • This posting$130–160K/yr
  • US median$130–200K/yr364 salary ranges

This range's midpoint, $145K, is 12% below the US median midpoint ($165K) — in the middle half of Simulation Engineer salary ranges across the US.

Openings
Olive Jobs lists 11 open Simulation Engineer jobs in Virginia and 509 across the US. 5% of them nationwide are listed as remote or flexible.
Hiring the most across the US
Experience
This posting asks for at least 5 years of experience; Simulation Engineer postings that state a minimum ask for 5 years at the median (412 postings).
Education
This posting asks for a bachelor's degree; 209 of the 509 open Simulation Engineer jobs (41%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 5, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

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