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Mechanical Engineer

Pittsburgh, Pennsylvania - Posted on October 2, 2026
Published By Nathan Gilbert

Trillium is seeking a Mechanical Engineer in Pittsburgh!

This Direct-Hire opportunity is seeking a Mechanical Engineer with experience in HVAC system design to join a collaborative team of project managers, engineers, and designers. Join a well-established engineering organization where you’ll play a key role in delivering high-quality mechanical designs for a diverse portfolio of commercial, industrial, and institutional projects. This position offers the opportunity to work on projects from concept through completion while partnering with clients and multidisciplinary engineering teams. The ideal candidate will enjoy solving complex engineering challenges, applying innovative HVAC solutions, and making a direct impact on project success.

This is an excellent opportunity for a motivated and independent engineer looking to advance their career in a collaborative and technically challenging environment. Successful candidates will bring strong HVAC design expertise, a commitment to client service, and a passion for developing practical engineering solutions. The selected engineer must be capable of reading and interpreting mechanical drawings, utilizing common engineering design and load calculation software, preparing specifications, and contributing to the successful delivery of high-quality HVAC projects.

Responsibilities:
• Design heating, ventilating, and air conditioning (HVAC) systems for a variety of projects
• Perform cooling and heating load calculations using industry-standard software
• Size and select HVAC equipment including chillers, boilers, AHUs, fans, pumps, ductwork, and piping systems
• Prepare, review, and edit project specifications and technical documentation
• Read and interpret mechanical drawings, plans, and construction documents
• Utilize engineering design software and drafting platforms to support project development
• Collaborate with project managers, engineers, designers, clients, and contractors throughout project lifecycles
• Ensure designs comply with applicable codes, standards, and project requirements
• Provide technical support and engineering expertise during project execution
• Conduct site visits and field evaluations as required
• Mentor and support junior engineering staff and contribute to team development

Schedule is 1st Shift / Monday - Friday / 8:00 AM - 5:00 PM. This is a hybrid opportunity / In office 3 days per week. Annual salary is $140,000+ DOE for PE candidates.

Apply now!

• Professional Engineer (PE) or Engineer in Training (EIT)
• Bachelor’s or master’s degree in mechanical engineering
• 5-10 years of mechanical engineering and HVAC design experience preferred
• Knowledge of building codes and standards including IMC and NFPA
• Experience performing cooling and heating load calculations using Trane Trace or Carrier HAPS
• Experience sizing and selecting chillers, boilers, AHUs, fans, ductwork, pumps, and piping systems
• Ability to develop, review, and edit engineering specifications
• Proficiency with Microsoft Word and Excel
• Ability to read and interpret mechanical drawings and construction documents
• Experience using common engineering design and analysis software
• Experience with Autodesk, AutoCAD, and Revit preferred
• Knowledge of chilled water plants, hot water and steam boiler systems, and central utility systems preferred
• Experience with combined heating and cooling plants (CCHP) is a plus
• Excellent written and verbal communication skills
• Passion for engineering excellence, continuous learning, and mentoring others
 


Trillium has been recruiting and placing professionals for over 30 years. From Fortune 100 companies to small businesses, our philosophy remains the same: to achieve excellence by providing quality employees and an uncompromising level of service. We believe in honesty, integrity, and a simple philosophy of providing value to our customers and our employees. We strive to be unsurpassed in the recruitment and placement of quality and skilled professionals. Trillium is an Equal Opportunity Employer.

Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for the employers and the California Fair Chance Act.

By applying to this job, I agree to receive electronic communications including SMS text and email regarding future opportunities, referral bonus incentives, and other promotions from Trillium. You may opt out at any time from future communications by responding STOP to any electronic communication. You may view our full privacy policy at https://trilliumstaffing.com/jobs/privacy/.

Trillium offers a comprehensive benefit package that includes the ability to participate in health insurance and retirement plans, paid holidays, state required leave, and other leave, if applicable. Trillium’s offerings are dependent on the state in which the assignment is located, length of time worked, and may change depending on assignment. Benefit packages for direct hire placements vary based on the client company.

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