Senior Modeling & Simulation Engineer

KBR • Reston, VA

5d • $130,000 - $160,000 • Onsite

About The Position

KBR is seeking a Senior Modeling & Simulation Engineer for a dynamic, multidisciplinary team of military and intelligence subject matter experts, operations research analysts, modelers, and software engineers. The team conducts modeling, simulation, and analysis of emerging concepts using advanced techniques and tools, including mission engineering, joint operational planning, and emerging operational concepts. Its work includes kill chain and kill web analyses supporting combatant commands and Echelon 1 Department of War stakeholders.

The engineer independently carries out modeling, simulation, and analysis tasks for mission engineering studies and operational analyses, contributes technical recommendations, and helps plan and execute study activities. The role supports modeling, simulation, and software development across the analytic and software development lifecycles, including model development, experiment design, data collection, and analytic products. The engineer works with military subject matter experts and other stakeholders to represent architectures and concepts in simulation, instantiate system and mission elements, lead focused technical tasks as needed, and contribute to quality deliverables and reports.

The position is on-site, with minimal travel (0–20%) and standard working hours. The role is within KBR's Mission Technology Solutions business, which is planned to spin off as Trinzic in January 2027; employees who join before the spin-off will transition to Trinzic when the separation is complete without needing to reapply.

Requirements

• Bachelor of Science in Computer Science, Operations Research, or another STEM field, plus 5 years of relevant experience.
• At least 3 years of demonstrated proficiency developing and employing mission-level models within AFSIM or comparable simulation environments.
• 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 7 years of relevant experience.
• At least 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.

Responsibilities

• Independently execute modeling, simulation, and analysis tasks for mission engineering studies and operational analyses.
• Provide technical recommendations and contribute to the planning and execution of study activities.
• Support modeling, simulation, and software development across the full analytic and software development lifecycles.
• Support study execution through model development, experiment design, data collection, and analytic products.
• Collaborate with military subject matter experts and stakeholders to characterize architectures and concepts in the simulation environment.
• Apply established modeling approaches, experiment designs, and analytic methods, and recommend improvements.
• 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.
• Collaborate with multidisciplinary teams and share technical expertise with peers.
• Lead focused modeling, simulation, or analysis tasks and coordinate activities across multidisciplinary team members as required.
• Contribute to the creation and quality control of deliverables and reports.

Benefits

• 401K plan with company match.
• Medical, dental, vision, and life insurance.
• AD&D coverage.
• Flexible spending account.
• Disability coverage.
• Paid time off.
• Flexible work schedule.
• Professional training and development.
• Potential additional compensation such as sign-on bonus, relocation benefits, short- and long-term incentives, or discretionary payments for exceptional performance.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior