Associate II

Job Title: Associate II

Location: Mason, OH

Posting End Date: 12/15/2026

Employee Type: Regular-Full time

Here’s what you will do:

• Contribute to and support engineering projects across the medical device, consumer product, and oil & gas industries.
• Develop and validate finite element models for structural, thermal, Multiphysics, fatigue, and creep analysis using software such as Abaqus, Ansys, and LS-DYNA. Perform analysis for components including pressure vessels, piping systems, surgical tools, and consumer products.
• Conduct failure analysis and remediation studíes using test data, simulation results, and other relevant techniques.
• Automate simulation workflows and post-processing using Python and Matlab.
• Use programming languages such as Fortran and C for finite element solver user subroutine development.
• Prepare proposals, presentations, and technical reports for client communication through teleconference or in-person meetings.
• Manage projects and work with cross functional teams to deliver physics-based modeling driven solutions to internal and external clients.
• Characterize biological tissues and medical-grade materials using hyperplastic, viscoelastic, and damage models.
• Develop surrogate models for digital twins, uncertainty quantification, sensitivity analysis,
• and design space exploration.
• lmplement verification, validation, and uncertainty quantification (WUQ within computational models to ensure compliance with ASME V&V 40.
• Analyze performance and reliability of consumer products using computational modeling and sensitivity analysis.
• Support product development through design iteration, material selection, and simulation-driven insights.
• Collaborate with design teams to improve ergonomics, durability, and manufacturability of consumer goods.
• Design and assess fixed equipment such as pressure vessels and heat exchangers utilizing knowledge and experience with ASME BPVC.
• Conduct fitness-for-service evaluations and remaining life assessments for equipment in petrochemical and energy sectors using API 579.
• Model fatigue and metal creep and implement in FEA software using subroutines, if needed.
• Support field investigations and remediation planning for tanks, pressure vessels, and piping.
• 5% or less of domestic travel to various worksites for client meetings.

Who you are:

• Must have a Master’s degree in Mechanical Engineering, or a closely related field.
• Must have five (5) years of experience as an Advanced Simulation Engineer, Modeling and Simulation Engineer, Mechanical Engineer, Design Engineer, Computational Analyst or related position requiring knowledge and practice related to hydraulic fracturing and associated field services.
• The five (5) years of experience must include working computational modeling and simulation including non-linear implicit/explicit FEA involving complex contacts and impact, thermal and Multiphysics analysis using tools such as Abaqus, Ansys and/or LS-DYNA; use of scripting for automation using Python or MATLAB and subroutine development using Fortran or C; material modeling of polymers and biological tissues including hyper elasticity, viscoelasticity, creep, and damage behavior; ASME BPVC, API 579, and other relevant engineering codes; advanced computational modeling, simulation and analysis in medical devices, consumer products, or oil and gas; use of finite element analysis and scripting tools; and Fitness for Service of pressure equipment

About Stress Engineering Services

Stress Engineering Services (SES) is an elite, one-of-a-kind engineering consulting firm, trusted for more than 50 years to solve the problems others can’t. Our reputation is built on an uncompromising commitment to technical excellence, a highly selective team of experts, and a track record of delivering answers in the most complex, high-stakes environments. We operate at the intersection of deep technical expertise and real-world application, partnering with clients across energy, aerospace, consumer products, medical, and beyond. Our teams combine advanced analysis with hands-on testing, failure analysis, and practical engineering judgment to deliver solutions that perform where it matters most, in the field. As an employee-owned company, our people are personally invested in every outcome, creating a culture where accountability is high and excellence is the standard. We don’t just solve problems, we uncover root causes, mitigate risk, and deliver confidence.

For our clients, that means a trusted partner known for rigor and results. For our people, it means joining an elite team tackling the most meaningful challenges in engineering.

SES is where complex problems meet uncommon solutions and where elite engineers come to do their best work.

Our Core Values

• We Over Me – We put the mission, our clients, and our team ahead of individual agendas
• Unyielding Pursuit of Excellence – Excellence is the standard. We deliver the right solution, on time, every time
• Own It – We take accountability to earn trust and deliver results

Equal Opportunity Employer

Stress Engineering Services, Inc. (SES) is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, age, veteran status, or other protected characteristics.