Staff Modeling and Simulation Engineer
Overview
Join Commonwealth Fusion Systems as a Staff Modeling and Simulation Engineer to drive next-generation hardware development. You will serve as a lead technical expert for advanced simulations, delivering predictive validation of complex systems in a collaborative fast-paced environment. This role offers the chance to make a significant impact while thriving among mission-driven thinkers and makers.
What You'll Do8
- 1Execute Simulation and Modeling: Lead advanced Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) for advanced processing equipment
- 2Run Multi-Physics Analysis: Build, run, and evaluate highly coupled simulations covering structural mechanics, high-temperature thermal management, fluid/gas flow dynamics, and chemical reaction kinetics
- 3Apply Engineering Best Practices: Implement engineering workflows for simulation data management, mesh convergence criteria, and rigorous verification and validation (V&V) protocols using physical test data
- 4Drive Design Reviews: Provide analytical leadership during technical design reviews, verifying structural margins, thermal stress distributions, and flow uniformity to guide design choices
- 5Collaborate & Interface: Partner closely with cross-functional teams, including Mechanical Designers, Electrical Engineers, Materials Scientists, and Chemical Specialists, to translate simulation insights into actionable hardware modifications
- 6Project Accountability: Own and report on modeling milestones, timelines, and computational resources to stakeholders, ensuring on-time and in-spec delivery
- 7Mentor Talent: Coach and mentor junior engineering staff on modeling methodologies, simulation accuracy, and the practical application of finite element principles to real-world hardware
- 8Get Things Done: Act with speed to solve critical engineering bottlenecks, validating design optimization paths from concept through prototype deployment
Requirements10
- 1Education: Master’s or PhD degree in Mechanical Engineering Aerospace Engineering Physics or a related field with a heavy focus on computational mechanics and multi-physics modeling
- 2Experience: 10+ years of experience in simulation and predictive analysis of complex R&D systems
- 3Software Mastery: Advanced, hands-on expert in ANSYS COMSOL Multi-physics or equivalent high-end FEA/CFD simulation platforms
- 4Multi-Disciplinary Analytical Expertise: Proven track record of successfully running coupled simulations e.g. fluid-structure interaction thermal-structural behavior and chemical reaction modeling
- 5Empirical Correlation: Ability to bridge the gap between virtual models and the shop floor by validating simulation results against physical test metrics like strain gauge data thermal imaging and flow sensors
- 6Leadership: Demonstrated ability to influence hardware design direction through analytical data and lead cross-functional initiatives in a matrixed environment
- 7Bonus points for: Standards Knowledge: Familiarity with applying industry codes to simulation-driven design validation
- 8Motion & Dynamics: Experience running transient dynamic simulations or modeling precision motion systems in extreme thermal environments
- 9Will need: Ability to lift up to 25 lbs occasionally perform activities such as stooping climbing standing sitting for extended periods of time willingness to travel or work required nights/weekends/on-call occasionally
- 10Dedication to safety to mitigate industrial hazards that may include heat cold noise fumes strong magnets lead (Pb) high voltage high current pressure systems and cryogenics
Salary Insight
$130 - $200k per year
Location
Required Skills
Similar open positions
Explore active roles that match your skills and interests.
Radiant Industries
VerifiedSenior Thermal-Hydraulics Engineer - CFD Modeling
You will own thermal CFD analysis for the Kaleidos microreactor, a 1-megawatt portable nuclear reactor targeting rapid deployment. You will use STAR-CCM+ and Ansys Fluent to model turbulent flow, heat transfer, and multi-physics interactions, ensuring high fidelity and safety across reactor systems. Working with cross-functional teams in El Segundo, you will drive simulation workflows and reduced-order methods to accelerate commercialization. This role stands out for its direct impact on the first mass-produced microreactor, with a path to test at Idaho National Laboratory.
Actalent
VerifiedSenior Mechanical Engineer, Electromechanical Systems
This role leads the development of complex electromechanical systems from concept through production. You will own mechanical design, analysis, and testing for high-reliability, mission-critical mechanisms. The position spans CONOPS, 3D CAD modeling, FEA analysis, and design reviews. You will collaborate with multidisciplinary teams and mentor junior engineers. This contract-to-hire role is onsite in Silver Spring, MD, with 5+ years of experience required.
REC_RTX_Ext_Gateway
VerifiedSystems Engineer II Modeling Simulation Analysis
Lead development of high-fidelity models and simulations for missile design and flight test activities. Design and implement solutions to evaluate system performance through trade studies and engineering analyses. Collaborate with GNC Signal Processing and Performance Simulation teams to support program objectives. Analyze simulation results to influence system architecture and performance. Support product lifecycle from concept through fielded operations. Participate in technical reviews to resolve challenges and improve performance. Develop simulation tools for engineering analyses and verification. Systems Engineer II – Modeling, Simulation & Analysis supports RTX Business.
Radiant Industries
VerifiedSenior Thermal Analyst Radiant Industries
Radiant seeks a driven Senior Thermal Analyst to lead thermal CFD analysis for the Kaleidos microreactor. You will design and execute simulations to ensure high fidelity reliability and safety across reactor systems. This role drives milestones toward commercialization of the first mass-produced nuclear reactor.
Executive Recruiting Group
VerifiedSenior Aerodynamics CFD Engineer
We seek a Senior Aerodynamics/CFD Engineer for our Boulder Colorado location. This role offers remote flexibility with travel. The position involves designing loft and optimizing components affecting aircraft aerodynamics and outer mold line. You will build models clean CAD geometry and generate meshes for CFD simulations that inform trade studies and certification decisions. You will support aerodynamic design across all phases develop high-fidelity databases for performance prediction and execute post-processing analysis for stakeholders. Collaboration with cross-functional teams ensures model accuracy and provides CFD expertise. You will improve software methods and support verification validation activities including failure hazard assessments. Training and mentorship of junior engineers are required.
Actalent
VerifiedSenior Software Simulation Engineer, Flight Simulators
Design and develop software for advanced flight simulators supporting multiple aircraft platforms, including avionics, tactical environments, and interfaces to audio, visual, motion, and I/O systems. Work across full lifecycle in Linux and Windows using C++ and FORTRAN. Collaborate with a team of 12-15 engineers on modeling, simulation, and training solutions. This role offers the chance to lead technical design in a mission-critical environment with 30% travel for integration and customer engagement.