Mechanical Engineer

Job Description

Job Description

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Pittsburgh, Pennsylvania - Posted on November 4, 2026

Published By Catrina Reed

Trillium is seeking a Mechanical Engineer in Pittsburgh!

This Direct-Hire opportunity is seeking a current Professional Engineer (PE) or Engineer in Training (EIT) with experience in HVAC system design. 

This is a hybrid position with 3 days per week in office and 2 days per week at home.

Salary ranges are:
EIT: $120,000 - $140,000 annually depending on experience
PE: $140,000 - $160,000 annually depending on experience

The Mechanical Engineer will 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. 

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

Qualifications:
Current Professional Engineer (PE) license and/or Engineer in Training (EIT) certification
Professional experience with mechanical engineering
Experience in HVAC design 

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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

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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