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Assistant Project Manager - Mechanical

MSS Solutions LLC
Hanahan, SC Full Time
POSTED ON 3/11/2026
AVAILABLE BEFORE 5/11/2026

As a result of our phenomenal growth, MSS Solutions, LLC has an opening for an Assistant Project Manager - Mechanical. If you are an experienced construction professional who is looking to grow your career and contribute fresh and innovative ideas to serve our customers, this is an opportunity you should explore!

A career at MSS is not just a job -- it's collaborating with the business's best talent. It's having a part in building a better future. It's making a difference in people's lives.

The success of MSS is a direct reflection of our team's dedication, passion, and hard work. Since 1996, MSS has taken pride in retaining some of the best talents in the industry by promoting a culture of respect, collaboration, and empowerment.

Roles and Responsibilities

  • The candidate will be responsible for assisting in the design and project management of HVAC systems which will include planning, organizing, and executing facility projects while maintaining close interaction with other Project Managers, clients, vendors, and subcontractors.
  • Assist in determining Mechanical Construction needs, constraints, and responsibilities to meet all the customer's facilities requirements.
  • Assist with coordinating with sales to provide data needed to assemble project scope.
  • Coordinate project-specific engineering.
  • Develop scope of work and project specifications.
  • Work with the project schedule.
  • Work with engineering to determine equipment specifications and procure materials.
  • Prepare and issue purchase orders for subcontractors.
  • Approve invoices.
  • Provide complete closeout documentation and warranty coverage.
  • Assist in reviewing and maintaining cost estimates of material, sub-contractors, purchased equipment, and other project-related activities.
  • Work with engineering on the specification and pricing of purchased equipment to ensure accuracy of quantity, size, configuration, voltage, options, etc.
  • Optimizes job costs by negotiating prices with vendors/sub-contractors.
  • Document work by maintaining files for each job.
  • Other such duties and responsibilities as assigned by the Company from time

Qualifications and Education Requirements

  • The successful candidate will possess a degree in Mechanical Engineering or equivalent work experience.
  • Experience in preparing engineering calculations, energy modeling and savings calculations, construction drawings, and project specifications.
  • Knowledge of applied HVAC equipment systems, Building Automation Systems, and associated support services
  • Strong communication skills
  • Valid driver’s license and acceptable driving record
  • Must be able to pass a background check and drug test
  • Physical Demands: Frequent sitting, occasional stooping, crouching, kneeling, balancing, and climbing. Frequent standing, walking, reaching and gripping. Clear speaking and adequate hearing sufficient to communicate effectively and respond appropriately in-person and/or on the telephone, vision sufficient to read source materials and computer screen data, repetitive motions for computer equipment use.

Work Environment: Exposure to weather, extreme heat or cold, high noise intensity level, atmospheric conditions, exposure to electrical shock, exposure to toxic or caustic chemicals, wet and/or humid, vibration, proximity to moving mechanical parts, working high exposure places (job sites) and/or an office environment with conditioned air and bright lights.

Benefit Highlights

At MSS, we value our employees by providing a supportive culture with competitive compensation and a benefits package that continues to evolve based on our business's growth and our employees' needs. Currently, our benefits include:

  • Medical/Dental/Vision Insurance
  • 401k with Employer Contributions
  • PTO
  • Paid Holidays
  • Employee Assistance Program
  • Long-term Disability
  • Short-term Disability
  • Flexible Spending Plan
  • Health Savings Plan

Additional Notes:

  • If you are unable to apply electronically and require an accommodation, please contact HRAdmin@msssolutions.com
  • MSS Solutions, LLC is an equal opportunity employer and a drug-free environment.
  • All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

MSS Employees, please visit the MSS Career Center or contact HR to apply.

Salary.com Estimation for Assistant Project Manager - Mechanical in Hanahan, SC
$75,127 to $90,499
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