Mechanical Engineer (Thermal Systems)

Stadler US; Salt Lake City (UT); On-site; USD 90,000 - 120,000; Full time

Benefits offered by this job

401(k) plan

Paid time off

Tuition reimbursement

Paid parental leave

Life and disability insurance

Job summary

Stadler US is seeking a Mechanical Engineer (Thermal Systems) to lead the development, integration, validation, and continuous improvement of thermal management for railway vehicles. You will serve as the thermal engineering SME and owner, ensuring performance, passenger comfort, and regulatory compliance across the project lifecycle.

The role requires 5+ years in thermal engineering, experience with HVAC systems, and proficiency in thermal modeling.

Qualifications

• Bachelor’s degree in mechanical engineering or related field.
• 5+ years in thermal engineering, thermal management, HVAC, or related fields.
• Experience in rail, aerospace, automotive, defense, or heavy equipment industries.
• Strong knowledge of thermodynamics, heat transfer, fluid mechanics, HVAC, and environmental testing.
• Fluent in English; German is a plus.

Responsibilities

• Develop concepts and documentation for rail vehicle thermal management systems.
• Own and manage thermal system requirements across projects.
• Perform thermal load calculations and energy balance assessments.
• Coordinate interfaces with mechanical, electrical, software, and vehicle engineering teams.
• Support testing, commissioning, and validation activities.

Skills

Thermodynamics

Heat Transfer

Fluid Mechanics

HVAC Systems

Thermal Management

Environmental Testing

Engineering Calculations

Education

Bachelor's degree in mechanical engineering

Tools

ANSYS

Icepak

Star-CCM+

FloTHERM

Simcenter

Job description

Stadler offers a wide range of international career opportunities. Here you get the chance to expand yourpotential, take on meaningful responsibilities, and deliver outstanding performance within dedicatedteams. We are looking for motivated individuals who want to shape the mobility of tomorrow with us. Areyou ready to achieve great things with us?

As a Mechanical Engineer (Thermal Systems),you will lead the development, integration, validation, and continuous improvement of thermal management systemsfor railway vehicles. Serve as both the thermal engineering subject matter expert and thermal system owner,ensuring thermal performance, passenger comfort, equipment cooling, regulatory compliance, reliability,maintainability, and customer requirements are achieved throughout the project lifecycle.

Key Responsibilities

• Develop concepts, specifications, and technical documentation for rail vehicle thermal managementsystems.
• Own and manage thermal system requirements throughout the project lifecycle.
• Perform and review thermal load calculations, energy balance assessments, passenger comfortanalyses, and equipment cooling evaluations.
• Define thermal management strategies for HVAC systems, batteries (BTMS), power electronics(Traction Converter/ Battery Converter), and other onboard systems.
• Responsible for the design, integration, and validation of thermal systems within rail vehicles.
• Act as the primary technical liaison between Stadler and thermal/HVAC suppliers.
• Review and approve supplier designs, calculations, technical documentation, and test reports.
• Interpret and incorporate customer, regulatory, operational, and environmental requirements intosystem designs.
• Define procurement documentation, technical specifications, verification plans, type testingrequirements, and commissioning documentation.
• Coordinate thermal system interfaces with mechanical, electrical, software, carbody, and vehicleengineering teams.
• Support climatic chamber testing, static testing, dynamic testing, and vehicle commissioning activities.
• Investigate and resolve thermal performance issues through engineering analysis and root-causeinvestigations.
• Responsible for supporting First Article Inspections (FAI) and production implementation activities.
• Ensure project deliverables are completed in accordance with project schedules, budgets, and qualityrequirements.
• Support development of thermal engineering standards, tools, processes, and best practices withinStadler.
• Ensure clear and effective cross-departmental collaboration.

Minimum Qualifications

• Bachelor’s degree in mechanical engineering or related engineering discipline.
• 5+ years of experience in thermal engineering, thermal management, HVAC systems, cooling systems,heat transfer, thermodynamics, or related fields.
• Experience in rail, aerospace, automotive, defense, heavy equipment, industrial equipment, ortransportation industries.
• Strong understanding of:
  • Thermodynamics
  • Heat Transfer
  • Fluid Mechanics
  • HVAC and Refrigeration Systems
  • Thermal Management and Equipment Cooling
  • Environmental Testing and Validation
• Experience performing engineering calculations, thermal load analyses, system evaluations, andtechnical investigations.
• Independent and well-structured working methods for integrating multiple projects, conductingtesting, and preparing deliverables associated with thermal systems.
• Excellent communication, technical writing, and problem-solving skills.
• Ability to work effectively in a fast-paced, collaborative environment.
• Self-motivated attitude and ability to use initiative to meet project timelines.
• Must be fluent in English (both verbal and written). German is a plus!

Preferred Qualifications

• Experience with passenger rail, locomotives, light rail vehicles, or metro vehicles.
• Experience with thermal modeling and simulation tools such as ANSYS, Icepak, Star-CCM+, FloTHERM,Simcenter, or similar.
• Familiarity with systems engineering principles, requirements management, and technical interfacemanagement.

What we offer

• Stadler US employee benefits package includes:
• 401(k) with generous employer match after 90 days
• Generous Paid Time Off / 9 Paid Holidays / Extended Paid Holiday
• Tuition and training reimbursement
• Paid maternity and parental leave
• Company-paid life and disability insurance