Sr. Mechanical Designer @ NDBS

Job Description

Job Description

Together We Build – Partnership, Innovation, Excellence, and Safety

At Kelso Industries, 5,000+ employees across 40+ companies work together to deliver exceptional HVAC, mechanical, plumbing, refrigeration, and electrical solutions nationwide. Join us to grow your career, make an impact, and be part of a team where innovation, excellence, and safety come first.

Recruiter Notice: We respectfully ask external recruiters and staffing agencies not to submit candidates. We only accept direct applications.

ABOUT NDBS

National Design Build Services (NDBS) is a mechanical design/build firm that designs and installs heating, ventilation, air conditioning and refrigeration (HVAC/R) systems for commercial and industrial buildings. We have been entrusted with more than 500 projects across the country, including healthcare, food processing, manufacturing, warehouses, office buildings and refrigerated warehouses.

Our designs focus on energy efficiency and limit life-cycle cost for building owners. We oversee every aspect of a project, from design development through close-out and commissioning. NDBS offers a strong benefits and compensation program and real career development opportunities.

JOB DESCRIPTION

We're looking for a Senior Mechanical Designer with 10+ years of experience in the layout and design of HVAC piping and sheet metal systems. You'll develop detailed, constructable designs in Revit, coordinate them in Navisworks and take projects from concept through installation. You'll partner with our engineers, guide junior designers, and make sure every design meets NDBS standards in the field.

POSITION INFORMATION

Item

Detail

Position Type

Full Time

Travel Required

<10%

Department

Engineering

Reports To

BIM Manager

Location

St. Louis, MO 63146

Schedule

On-site or Remote, Monday–Friday

RESPONSIBILITIES

• Lay out and design HVAC piping systems, including but not limited to chilled water, heating hot water, condenser water, steam, refrigeration and condensate
• Lay out and design sheet metal ductwork systems, including supply, return, exhaust and process air
• Develop detailed, constructable designs in Revit to project and company standards
• Run clash detection in Navisworks and resolve conflicts with other trades
• Produce construction drawings, plans, sections and details directly from the Revit model
• Size and route piping and ductwork with engineers, accounting for access, supports, hangers and installation sequencing
• Review designs and models from junior designers, and mentor them on piping and sheet metal best practices
• Participate in coordination meetings and track design issues through to closeout
• Support field engineering and installation teams, including RFI responses and field changes
• Maintain project documentation, model files and records

QUALIFICATIONS AND EDUCATION REQUIREMENTS

Required

• Minimum 10 years' experience in mechanical design in the HVAC or MEP industry
• Strong background in piping and sheet metal layout and design
• Strong proficiency in Revit (MEP) and Navisworks
• Working knowledge of AutoCAD, Bluebeam and Microsoft Office
• In-depth knowledge of HVAC piping and ductwork systems, fittings, supports and installation practices
• Ability to interpret Architectural, Structural, Civil, Electrical, Plumbing and Fire Protection documents and models
• Strong written and verbal communication skills
• Self-motivated, with the ability to manage multiple deadline-driven projects at once

Nice to Have

• Experience in data center, healthcare, food processing, industrial or refrigerated warehouse projects
• Experience producing fabrication-level sheet metal or piping models
• Spool drawing experience using tools such as Victaulic Tools for Revit, Revit Fabrication or Trimble SysQue
• Exposure to BIM execution plans and Common Data Environments (CDEs)

PHYSICAL & WORK REQUIREMENTS

• Operate standard office equipment, computers and related software
• Communicate effectively with engineers, designers, trade partners and field personnel to identify design and coordination issues and develop practical solutions

WHY NDBS

We're committed to attracting talented people who want a company with a strong foundation of success and an outstanding culture. We offer competitive compensation, comprehensive benefits and clear pathways for career advancement, with autonomy and flexibility in an entrepreneurial environment.

Why Join Kelso Industries?  

Join us and be part of a team dedicated to creating efficient, sustainable, and high-performance environments that make a lasting impact across the industrial, commercial, and institutional sectors.  

Here you will experience:   

Growth Opportunities: Develop new skills, take on exciting challenges, and advance your career in meaningful ways.  

Company Culture: You'll thrive in an environment that supports your growth, values your contributions, and makes work fulfilling and enjoyable. 

Impact: Your work directly contributes to meaningful outcomes, allowing you to see the difference you make and feel a sense of purpose every day. 

Competitive Compensation & Benefits: You'll be rewarded fairly for your contributions while enjoying perks that enhance your financial security, health, and overall well-being. 

Kelso Industries celebrates diversity and is committed to creating an inclusive environment for all employees. We do not discriminate in any aspect of employment based on race, color, religion, national origin, ancestry, gender, sexual orientation, gender identity and/or expression, age, veteran status, disability, or any other characteristic protected by federal, state, or local employment discrimination laws where Kelso does business