Modeling & Simulation Engineer - Digital Twins

Redwire Corporation; Chantilly (VA); On-site; USD 85,000 - 150,000; Full time

Job summary

Redwire Corporation seeks a Modeling & Simulation Engineer to develop high-fidelity digital twins and scalable simulation architectures for spacecraft programs supporting National Security Space.

You will integrate physics-based computation with MBSE practices, collaborating with systems, software, and mission-analysis teams to ensure datadriven simulation capabilities across aerospace applications.

Qualifications

• Bachelor's degree in Engineering, Systems Engineering, or related STEM field.
• 1–5 years of Modeling & simulation development experience.
• Proficiency in MATLAB/Simulink, Python, or C++ for numerical modeling.

Responsibilities

• Develop and enhance simulation models supporting mission analysis and system design.
• Design and maintain digital twins for spacecraft and mission systems.
• Architect simulation frameworks with component models and interfaces.
• Implement numerical and multidomain models using physics-based computation.
• Perform virtual integration and V&V for simulation components.
• Evaluate system performance using defined metrics and criteria.
• Collaborate with engineering teams to align outputs with mission needs.
• Communicate technical results through documentation and presentations.

Skills

Modeling & simulation

MBSE

Systems engineering

Python

MATLAB/Simulink

C++

Verification & validation

Technical communication

Cross-functional collaboration

Education

Bachelor's degree in Engineering or related field

Tools

STK

GMAT

Orekit

Trick

Modelica

Three.js

WebGL

Job description

Redwire is an innovative space and defense technology company driving advanced capabilities across the aerospace sector. We are looking for a leader who can contribute to concept of operations development, mission solution design, and strategic analysis for spacecraft programs supporting National Security Space. This includes work spanning space domain awareness, space resiliency, mission autonomy, structures, sensors, and nextgeneration space systems.

The Modeling & Simulation Engineer is responsible for developing, integrating, and maintaining highfidelity digital twins and simulation architectures that support the company's modeling, missionanalysis, and digitalengineering ecosystems. This role blends physicsbased computation, systemsengineering discipline, and softwaredriven simulation development to ensure that digital twins, scenario models, and systemlevel simulations are accurate, scalable, and aligned with mission and product objectives. You will design and validate simulation components, implement numerical and multidomain models, support virtual integration and V&V activities, and collaborate closely with systems engineers, software teams, mission analysts, and UI/UX partners to deliver coherent, datadriven simulation capabilities across aerospace and defense applications.

Responsibilities

• Develop and enhance simulation models supporting mission analysis, system design, and digitalengineering workflows.
• Design and maintain digital twins for spacecraft, vehicles, and mission systems, including datadriven updates and configuration management.
• Architect simulation frameworks including component models, interfaces, scenario generation, and systemlevel integration.
• Implement numerical and multidomain models using physicsbased computation and advanced simulation techniques.
• Perform virtual integration and V&V for simulation components and endtoend system behavior.
• Evaluate system performance using defined metrics, technical performance measures, and simulationbased criteria.
• Collaborate across engineering disciplines to align simulation outputs with mission, product, and systemdesign needs.
• Communicate technical results through documentation, design artifacts, and presentations for reviews and proposals.

Ideal Experience

• STEM foundation - Bachelor's degree in Engineering, Systems Engineering, Mechanical Engineering, Computer Science, Physics, Applied Mathematics, or related STEM field.
• Modeling & simulation development - 1-5 years building physicsbased models or simulation engines.
• Physicsbased computation - Proficiency with MATLAB/Simulink, Python (NumPy/SciPy/JAX), or C++ for numerical modeling and system dynamics.
• Digital engineering & MBSE - Experience applying MBSE, SysML, or digitalthread methodologies.
• Simulation architecture - Ability to design and validate simulation architectures and systemlevel integrations.
• Digital twins & digital threads - Experience creating and evolving digital twins for mission systems.
• Interface design & simulation - Ability to model and simulate system and subsystem interfaces.
• Numerical methods - Knowledge of integration methods, control theory, estimation, orbital mechanics, or multidomain modeling.
• Verification & validation - Experience with virtual integration and V&V of simulation components.
• Performance evaluation - Ability to define and assess simulationbased performance metrics.
• Crossfunctional collaboration - Ability to work with systems, software, mission analysis, and UI/UX teams.
• Technical communication - Skilled in presenting simulation results and design artifacts.

Desired Skills

• Highfidelity simulation tools - STK, GMAT, Orekit, Trick, Modelica, or similar frameworks.
• Realtime & HIL simulation - Experience with realtime or hardwareintheloop environments.
• HPC & GPUaccelerated workflows - Familiarity with CUDA, Vulkan compute, OpenCL, or HPC pipelines.
• Graphbased data modeling - Knowledge of metadata lineage and digitalthread integration.
• API integration - Experience integrating simulation engines with REST, gRPC, or GraphQL APIs.
• Simulation visualization - Experience with Three.js, WebGL, React Three Fiber, or CesiumJS.
• Aerospace & missionsystem experience - Background in aerospace, defense, or highintegrity engineering.
• MBSE tooling - Experience with Cameo, Teamwork Cloud, or similar tools.
• Requirements management - Experience with Jama, DOORS, or comparable systems.
• Systems engineering certifications - INCOSE ASEP/CSEP, OCSMP, or related credentials.
• Travel readiness - Ability to travel 10-15% as required.
• Security eligibility - U.S. Citizen; able to obtain and maintain DoD Secret clearance (TS/SCI preferred).

Grow with us as we innovate the next generation capabilities for a new era of space exploration!

We offer a highly competitive benefits package along with a commitment to our core values of Integrity, Innovation, Impact, Inclusion, and Excellence.

Don't meet every single requirement above? No worries. We want people who can grow, collaborate and build a stronger team. We strive to build a diverse and inclusive culture, so if you 're excited about this job posting, we encourage you to apply. You may be just the right candidate for this or other roles.

Pay Rate

$85,000 - $150,000/year

How We Determine What We Pay (Compensation Philosophy)

Redwire determines pay for positions using local, national, and industry-specific survey data, for our locations throughout the US. We will evaluate external equity and the cost of labor/prevailing wage index, in the relative marketplace for jobs directly comparable to jobs within our company. For new hires, we strive to make competitive offers allowing the new employee room for future growth. Salaries will be based on the applicant's level of experience, education, and specialized knowledge and skills. Additionally, we consider the external market rate, the amount we have budgeted internally, and internal equity within the company for the same position. An employee/candidate with a stronger skill set will receive higher pay.

Redwire Space is an Equal Opportunity Employer; employment with MIS is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

All offers of employment at Redwire Space are contingent upon clear results of a thorough background check.

To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the Click Here

This position may require access to information, materials, or technology subject to the International Traffic in Arms Regulations ("ITAR") and/or the Export Administration Regulations ("EAR"). To comply with these regulations, applicants may be asked to provide documentation to verify their status as a "U.S. person" as defined under the ITAR and EAR, or their eligibility to obtain any required U.S. Government export authorization. Redwire complies with all applicable anti-discrimination laws, including the Immigration and Nationality Act, and does not discriminate on the basis of citizenship status or national origin except as required by law.