Job#: 3056685 Job Description: Senior Mechanical Simulation EngineerLocation: Onsite in Fremont, CA
Schedule: Monday-Friday, 8:00 AM - 5:00 PM PST
Interview Process:- Round 1: 1-hour virtual technical screen
- Round 2: 3-hour onsite panel interview
Position Overview
We are seeking a Senior Mechanical Simulation Engineer to support the analysis, validation, and optimization of complex equipment, subsystems, and components through advanced computational modeling and simulation.
This role will focus on reacting-flow CFD, species transport, chemical reaction modeling, heat transfer, fluid dynamics, structural analysis, and multiphysics simulations. The successful candidate will develop validated physics-based models that drive product development, improve performance, and support engineering decisions across a variety of highly technical applications.
The ideal candidate combines deep expertise in computational engineering with strong fundamentals in fluid mechanics, heat transfer, reaction kinetics, and numerical modeling.
Key Responsibilities
- Develop and execute advanced CFD, FEA, and multiphysics simulations to support product development and design optimization.
- Perform thermal, fluid flow, structural, chemical reaction, and species transport analyses.
- Build and maintain physics-based models involving reaction kinetics, gas-phase chemistry, surface reactions, and mass transport.
- Conduct reacting-flow simulations involving coupled fluid flow, heat transfer, mass transfer, chemical reactions, and material interactions.
- Develop, calibrate, simplify, and validate computational models using experimental data and engineering test results.
- Evaluate design concepts and support engineering decision-making through simulation-driven insights.
- Analyze process sensitivity, performance limitations, and optimization opportunities.
- Support development of process chambers, fluid delivery systems, thermal management solutions, advanced materials applications, and related technologies.
- Design validation methodologies, feasibility studies, test plans, and correlation activities.
- Partner with cross-functional engineering teams to improve product performance and reliability.
- Present technical findings, simulation results, recommendations, and design tradeoffs to engineering leadership and project teams.
- Generate technical reports documenting assumptions, model development, validation results, and recommendations.
Required Qualifications
- Master's degree or Ph.D. in:
- Mechanical Engineering
- Aerospace Engineering
- Computational Engineering
- Applied Mathematics
- Chemical Engineering
- Physics
- Data Science
- Or a related technical discipline
- Strong experience performing CFD and multiphysics simulation work.
- Deep understanding of:
- Fluid mechanics
- Heat transfer
- Thermodynamics
- Mass transfer
- Numerical methods
- Reaction kinetics
- Experience developing and validating computational models for engineering applications.
- Strong technical communication and presentation skills.
Required Technical Skills
CFD & Multiphysics
- ANSYS Fluent
- ANSYS Mechanical
- STAR-CCM+
- COMSOL Multiphysics
- Equivalent CFD/FEA platforms
Simulation Areas
- Reacting Flow CFD
- Species Transport
- Heat Transfer
- Fluid Flow Analysis
- Chemical Reaction Modeling
- Reaction Kinetics
- Structural Analysis
- Thermal Management
- Multiphysics Coupling
Engineering Fundamentals
- Fluid Mechanics
- Thermodynamics
- Mass Transfer
- Heat Transfer
- Numerical Analysis
- Model Validation
- Data Correlation
Preferred Qualifications
- Experience developing reaction kinetics models.
- Experience with gas-phase chemistry and surface reaction modeling.
- Experience with advanced materials including:
- Metals
- Ceramics
- Quartz
- Plastics
- Advanced coatings
- Experience with CAD platforms:
- Siemens NX
- Creo / ProE
- SolidWorks
- Experience supporting development of complex industrial equipment, advanced manufacturing systems, process equipment, energy systems, aerospace systems, or related technologies.
Top Skills (Must-Haves)
1. Reacting-Flow Simulation & Species Transport
Candidates should have direct experience modeling reacting flows, mass transport, reaction kinetics, and coupled physics problems.
2. CFD / FEA & Multiphysics Analysis
Strong hands-on experience performing advanced simulations involving fluid flow, thermal performance, structural behavior, and multiphysics interactions.
3. ANSYS Fluent / STAR-CCM+ / COMSOL
Recent professional experience utilizing industry-standard simulation platforms.
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at
Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.
