Mechanical Design Engineer

About NDBS

National Design Build Services (NDBS) is a mechanical design/build firm based in St. Louis, MO. We design and deliver HVAC, refrigeration and process systems for commercial, industrial and mission-critical facilities, including, food processing, manufacturing, data centers, and refrigerated warehouses. NDBS is part of the Kelso Industries family of MEP+ companies, which shares the core values of Partnership, Innovation, Excellence and Safety. We take projects from design through fabrication and field installation, using off-site prefabrication partners where it improves schedule, quality and job-site safety. NDBS offers an excellent benefits and compensation program and strong career development opportunities.

Design Engineer

About NDBS

National Design Build Services (NDBS) is a mechanical design/build firm based in St. Louis, MO. We design and deliver HVAC, refrigeration and process systems for commercial, industrial and mission-critical facilities, including food processing, manufacturing, data centers, and refrigerated warehouses. NDBS is part of the Kelso Industries family of MEP+ companies, which shares the core values of Partnership, Innovation, Excellence and Safety. We take projects from design through fabrication and field installation, using off-site prefabrication partners where it improves schedule, quality and job-site safety. NDBS offers an excellent benefits and compensation program and strong career development opportunities.

Position Description:

The Mechanical Design Engineer at NDBS is involved in all aspects of the HVAC design / build process. From project conception through the details of design and field coordination, you will work with our staff of experts sharing and gaining practical knowledge and experience unmatched in this industry. This position is responsible for delivering project design assignments within time and budget parameters while satisfying client contracts, either through a team of engineers or individually.

Position Information

Position Type: Full Time

Travel Required: 20-30%

Department: Engineering

Location: St. Louis, MO 63146 OR Remote, United States

Skills & Responsibilities (including but not limited to):

• Adhering to NDBS Core Values
  • Safety
  • We Answer Our Phones
  • Always Innovating
  • Collaborative Partnerships
  • Reputation
  • Entrepreneurship

• Design and Technical:
  • Perform load calculations for projects.
  • Design and plan layouts of equipment, duct and piping systems.
  • Drive the development of HVAC design from the initial concept through construction drawings utilizing Revit.
  • Application engineering including but not limited to Sequence of Operations, load calculations, psychometrics, and refrigeration.
  • Engages in several levels of field engineering, assisting with project execution, trade coordination, and document management.
  • Understand code requirements

• Project Execution:
  • Perform internal turnover meetings to identify project scope, risks, resource requirements, communications, schedule, and budgets
  • Collaborate with preconstruction department to ensure project bid scope is developed into design documents.
  • Collaborate with operations department to ensure a shared understanding of project scope and overall project execution
  • Drive quality control through on site project visits and punch list creation.

Qualifications and Education Requirements:

• Bachelor’s degree in related Engineering field, Mechanical preferred
• Related experience in the HVAC/R industry
• Self-motivated with excellent time and task management skills
• Ability to work within an environment with deadlines while having to multi-task with changing priorities
• Ability to interact effectively with others in a team environment
• Excellent leadership, organization, and communication skills
• Experience in Healthcare Design a plus

NDBS is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.

We’re committed to attracting talented individuals who seek a company with a strong foundation of success and an outstanding culture. We proactively provide competitive compensation, comprehensive benefits, and clear pathways for career advancement with autonomy and flexibility in an entrepreneurial environment.

Learn more about our family of operating companies at

NDBS is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status, or any other characteristic protected by law.