Mechanical Engineer at SMSI – Springfield, Missouri

Build Your Career in Industrial Refrigeration

We are looking for a Mechanical Engineer to join our team supporting the design, fabrication, and installation of industrial ammonia refrigeration systems. This is an opportunity to work on real-world systems used in food processing, cold storage, and industrial facilities—while learning directly from a highly experienced team. Whether you already have ammonia refrigeration experience or come from a strong mechanical background, we provide hands-on training and mentorship to help you grow into an expert in this specialized field.

This role includes a mix of office work, shop interaction, and occasional field/site visits. You’ll be involved in projects from concept through commissioning.

What Sets This Role Apart

• Hands-on training from senior staff with decades of ammonia refrigeration experience
• Direct exposure to design, fabrication, and field work—not just desk engineering
• Opportunity to build expertise in a high-demand, specialized industry
• Career growth into senior engineering, project management, or technical leadership roles

Compensation & Benefits

• Competitive pay based on experience
• Health, dental, and vision insurance
• 401(k) with company match
• Paid time off and holidays
• Ongoing training and development

$85,000 - $125,000 DOE

• Design and develop industrial ammonia refrigeration systems
• Perform load calculations, system sizing, and efficiency analysis
• Select and specify equipment such as compressors, vessels, evaporators, and condensers
• Create P&IDs, piping layouts, and Bills of Materials
• Work closely with fabrication, operations, and field teams
• Support installation, startup, and commissioning of systems
• Troubleshoot performance issues and improve system reliability
• Ensure compliance with industry standards and safety regulations (IIAR, PSM, RMP)

• Bachelor’s degree in Mechanical Engineering
• 3+ years of relevant experience in mechanical systems or refrigeration
• Experience with ammonia refrigeration is a plus, but not required
• Strong understanding of thermodynamics and heat transfer
• Ability to read and develop engineering drawings and P&IDs
• Experience with CAD software (AutoCAD, SolidWorks, or similar)

Preferred Qualifications:

• Experience with industrial refrigeration or HVAC systems
• Familiarity with IIAR standards, OSHA PSM, or EPA RMP
• RETA certifications (CARO/CIRO)
• Knowledge of PLCs or industrial controls

SMSI is dedicated to providing the highest quality mechanical services performed in an honest, dependable, and efficient manner. SMSI offers lots of room to grow in a fast-paced company. We have been serving commercial and industrial markets for 30 years.