Demo

Sr. Engineer, M&S, Systems Performance

FTI
Menasha, WI Full Time
POSTED ON 12/13/2025 CLOSED ON 1/10/2026

What are the responsibilities and job description for the Sr. Engineer, M&S, Systems Performance position at FTI?

You’ve discovered something special. A company that cares. Cares about leading the way in construction, engineering, manufacturing and renewable energy. Cares about redefining how energy is designed, applied and consumed. Cares about thoughtfully growing to meet market demands. And ─ as “one of the Healthiest 100 Workplaces in America” ─ is focused on the mind/body/soul of team members through our Culture of Care.

As a Systems Performance Modeling & Simulation Engineer in the R&D group, you will be responsible for developing advanced physics-based and empirical modeling and simulation environments for electrical, thermal, and mechanical systems used in distributed energy resources and power distribution. Collaborating with subject matter experts, product strategy teams, and systems engineers, you will create accurate and efficient simulations that meet requirements and support product development. Through your expertise, you will play a key role in driving innovation and performance improvements in distributed energy and power distribution systems.

Minimum Requirements

  • Education: Bachelor’s degree in electrical engineering, mechanical engineering or equivalent
  • 5 years of experience in systems simulation
  • Proficiency in time-domain simulation software such as MATLAB, Simulink, or similar tools for pure simulation or real time operating platforms
  • Knowledge of multi-physics modeling software such as Simscape, Simcenter Amesim, GT Suite, or similar
  • Proficient in hardware-in-the-loop (HIL), model-in-loop (MIL), and software-in-the-loop (SIL) simulation platforms, including the integration of plant and controls models
  • Experience with HIL platforms including dSpace, speedgoat, NI, or others for testing of controls systems
  • Strong understanding of renewable energy systems including solar, wind, power conversion, and battery energy storage systems.
  • Knowledge of power distribution concepts including uninterrupted power supply, power converters, switchboards, and other power electronics
  • Familiarity with thermal management systems for battery energy storage, HVAC systems for power distribution enclosures, and their characterization as required for performance-level modeling and simulation
  • Demonstrated implementation of real-world power generation and distribution problems into complex modeling and simulation platforms
  • Demonstrated development and implementation of modular component models with scalable flexibility for various levels of simulation fidelity

Preferred Requirements

  • Advanced degree in electrical or mechanical engineering with demonstrated simulation experience
  • Strong understanding of related regulatory frameworks and industry standards related to the relevant energy technologies: Microgrid, Power generation, and Energy storage
  • Experience with Python, C , or similar environments for development of optimization tools and controls logic
  • Experience with machine learning models generated from data
  • Experience with integration of technoeconomic analysis with systems modeling and simulation
  • Experience with development of SIL, MIL, and HIL platforms for verification and validation of controls software
  • Experience using version control for modeling and simulation including Git or other similar tools
  • Computational Fluid Dynamics Software experience

Travel: 5-10%

Work Schedule: This position works between the hours of 7 AM and 5 PM, Monday- Friday. However, work may be performed at any time on any day of the week to meet business needs.

Work Location - This is an onsite position located out of our office in Menasha, WI. Candidates are required to be in the office 2 to 3 days per week.

Key Responsibilities

  • Develop physics-based modeling and simulation environments for a variety of electrical, thermal, and mechanical systems for distributed energy resources and power distribution
  • Conduct product architecture trade studies and optimization to ensure maximized performance and minimal costs
  • Integrate cost, weight, and specification data of components, systems, and renewable energy fuels into simulation models for technoeconomic analysis of architecture options
  • Collaborate with subject matter experts to characterize components and systems in a simulation environment and communicate analysis results
  • Collaborate with product strategy and systems engineers to develop models and simulation according to requirements
  • Develop, enhance, and implement advanced tools to streamline workflows, optimize processes, and improve overall team efficiency
  • Develop proof-of-concept controls algorithms to support architecture trade studies and provide functional recommendations to software development teams
  • Utilize DOE, optimization methods, and data driven modeling and analysis tools
  • Use models and simulation platforms to verify and validate controls software

The job description and responsibilities described are intended to provide guidelines for job expectations and the employee's ability to perform the position described. It is not intended to be construed as an exhaustive list of all functions, responsibilities, skills, and abilities. Additional functions and requirements may be assigned by supervisors as deemed appropriate.

How Does FTI Give YOU the Chance to Thrive?

If you’re energized by new challenges, FTI provides you with many opportunities. Joining FTI opens doors to redefine what’s possible for your future.

Once you’re a team member, you’re supported and provided with the knowledge and resources to achieve your career goals with FTI. You’re officially in the driver’s seat of your career, and FTI’s career development and continued education programs give you opportunities to position yourself for success.

FTI is a “merit to the core” organization. We recognize and reward top performers, offering competitive, merit-based compensation, career path development and a flexible and robust benefits package.

Benefits Are The Game-Changer

We provide industry-leading benefits as an investment in the lives of team members and their families. You’re invited to review the full list of FTI benefits available to regular/full-time team members. Start here. Grow here. Succeed here. If you’re ready to learn more about your career with FTI, apply today!

Faith Technologies, Inc. is an Equal Opportunity Employer – veterans/disabled.

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Salary.com Estimation for Sr. Engineer, M&S, Systems Performance in Menasha, WI
$110,343 to $131,482
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