A+S is seeking a Senior Mechanical Engineer or Designer to join our growing Chicago team. The Senior Engineer/Designer will work independently on multiple concurrent projects, both in design and construction, and be responsible for the preparation of contract documents and specifications for complex building systems. This encompasses advanced calculations, systems analysis, quality control of finished projects, and field/construction coordination activities. Responsibilities • Perform full design of HVAC systems, including full equipment selection, for medium to large commercial projects • Analyze system options and evaluate existing systems where appropriate. • Coordinate all aspects of project document completion within A+S and externally with clients. • Complete full design in accordance with code. Production is performed using AutoCAD & Revit depending on preference of architect. • Write specifications. • Provide bid and construction phase services including reviewing bids, answering RFIs, reviewing shop drawings, participating in project walk-throughs, and providing field observation reports. • Must be proficient in a variety of HVAC systems and shall be considered a technical expert and resource to the office. Requirements • Bachelor's degree in Mechanical Engineering (or Architectural Engineering with a Mechanical focus) • At least 10 years of relevant experience • AutoCAD & Revit proficient • PE preferred #LI-Onsite Benefits • Bonus Pay • Generous Paid Time Off • Employee Referral Program • Medical Insurance • Flexible Spending Account • Company contribution to Health Savings Account • Employee Assistance Program • Wellness Reimbursement Plan • Dental Insurance • Vision Insurance • Life Insurance • Short & Long-Term Disability Insurance • 401(k) Plan with Company Match • Tuition Reimbursement Program • Professional Development Assistance • Paid Pregnancy Leave • Paid Parental Leave • Paid Community Service Leave