Mechanical Engineer II

The Opportunity

PAE is seeking a motivated and detail‑oriented Mechanical Engineer II to join our team in a hybrid office environment in Boston. In this role, you will bridge the gap between foundational design and project leadership, taking ownership of mechanical system layouts for HVAC, Plumbing, and Fire Protection. Working under the direction of a Lead Engineer, you will apply your technical expertise to perform complex load calculations, select equipment, and ensure all project deliverables meet our high standards for quality and precision.

• Perform Revit/AutoCAD system engineering.
• Design and plan mechanical system layouts under the direction of a lead engineer.
• Demonstrate thorough understanding of mechanical distribution, HVAC, Plumbing, Fire Protection, and Energy Modeling.
• Prepare project deliverables with meticulous attention to detail.
• Read plans and specifications, and develop the skills to edit/write specifications.
• Understand and collaborate across other disciplines.
• Apply building codes, industry standards, and mechanical engineering design principles.
• Perform engineering calculations and equipment selection based on load requirements.
• Interact with clients and other project team members.
• Support the project lead in developing opinions of probable construction costs.
• Contribute to site visits and prepare reports.
• Implement the project quality management plan (QMP).
• Perform other duties as assigned.

• Bachelor’s Degree in an Engineering discipline.
• Minimum 1‑2 years of Mechanical Engineering experience or equivalent.
• Engineer in Training (E.I.T.) preferred.
• Knowledge of mechanical systems, engineering concepts, and effective communication.
• Knowledge of all project phases.
• Strong problem‑solving and analytical skills.
• Delegation and organizational skills with high attention to detail.
• Proficiency with Microsoft Office Suite.
• Experience with Revit/AutoCAD.

• Hiring Base Salary Range: $86,400‑$105,500 annual.
• Eligible for overtime pay (time and a half) as required.
• Annual compensation reviews based on performance and business needs.
• Employer‑paid health insurance (medical, dental, vision).
• Annual 401(k) profit‑sharing based on company profit for the year.
• Professional development reimbursements (state registration, professional association dues).
• Employer‑paid commuter/parking stipend.
• Cell phone stipend.
• Life insurance and disability benefits.
• Hybrid work schedule.
• Employee Assistance Program.
• 9 paid holidays plus an additional employee‑selected day.
• Paid time off for sick leave, family leave, community service, holidays and vacation.

In order to provide equal employment and advancement opportunities to all individuals, employment decisions at PAE will be based on merit, qualifications and abilities. PAE does not discriminate in employment opportunities or practices on the basis of race, color, religion, gender (sex), national origin, age, veteran status, sexual orientation, gender identity, physical characteristics historically associated with race, disability, genetic information or any other characteristic protected by applicable law.

PAE will make reasonable accommodations for qualified individuals with known disabilities unless doing so would result in an undue hardship. This policy governs all aspects of employment including selection, job assignment, compensation, discipline, termination and access to benefits and training.

PAE is a JUST label certified company; we demonstrate JUST label requirements within pay equity. Pay scales should meet or exceed applicable legislated wage requirements and industry standards and compensate, on the same basis, all individuals performing the same or similar work and work of equal value. We are committed to the principle of pay equity – paying employees equitably for substantially similar work.