Principal Modeling & Simulation Engineer

KBR•Reston, VA

9d•$157,000 - $182,000•Onsite

About The Position

KBR is seeking a Principal Modeling & Simulation Engineer to join a multidisciplinary team of military and intelligence subject matter experts, operations research analysts, modelers, and software engineers. The team uses modeling, simulation, and analysis (MS&A) to assess emerging concepts, applying mission engineering, Joint operational planning, and advanced MS&A techniques and tools. Its work includes kill chain and kill web analyses supporting combatant commands and Echelon 1 Department of War stakeholders. The selected candidate will work independently on complex modeling and simulation tasks, support analytic and software-development efforts across their full lifecycles, and help execute study plans. They will collaborate with subject matter experts and stakeholders to characterize architectures and concepts in simulation environments, develop modeling approaches and experiment designs, instantiate models and operational scenarios, and contribute to quality deliverables. The role also includes providing technical guidance to less experienced engineers and analysts when required. The position is on-site, with minimal travel (0–20%) and standard working hours. The scheduled workweek is 40 hours. Candidates who join KBR’s Mission Technology Solutions business before its planned spin-off, expected in January 2027, will transition to Trinzic when the separation is complete and will not need to reapply.

Requirements

Bachelor of Science in Computer Science, Operations Research, or another STEM field, plus 8 years of relevant experience.
At least 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 another programming language.
Active Top-Secret clearance with Sensitive Compartmented Information (SCI) and Special Access Program (SAP) eligibility.

Nice To Haves

Master’s degree in Computer Science, Operations Research, or another STEM field, with 10 years of relevant experience.
At least 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.

Responsibilities

Work independently on complex modeling and simulation tasks with minimal oversight.
Develop creative, grounded solutions and support decisions in a dynamic environment with uncertainty.
Support modeling, simulation, and software development across the full analytic and software-development lifecycles.
Support the analytic team lead in executing study plans.
Collaborate with military subject matter experts and other stakeholders to characterize architectures and concepts in the simulation environment.
Contribute to 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 development and instantiation of experiment designs in the simulation environment.
Provide technical guidance to less experienced engineers and analysts when required.
Contribute to quality deliverables and reports, including quality control.