Commercial Mechanical Designer

Location: Fairfax, VA


PEG, LLC is in its 20th year as a diverse energy efficiency, engineering, environmental, and management consulting firm operating principally in the Eastern and Central United States. PEG specializes in building energy performance, green building program compliance, building diagnostics, environmental and code compliance, thermal performance, HVAC design and operation, and construction defect. These capabilities have enabled PEG to become a leader in the application of national green building standards and demand side energy efficiency protocols. Operating as a design consultant and “boots on the ground” interim and continuous inspection agent, PEG leads the way in verification of effective planning and real-world application of all aspects of sustainable construction. PEG performs at every level of contracting from commercial structures to residential dwellings to charitable endeavors.

Job Purpose:

Support Director of Design and Commercial Design Lead


• Perform and review HVAC load calculations, duct sizing, and system sizing per ACCA Standards

• Provide support to analysis team

• Communicate any auditing areas to Management and provide options for resolution

• Organize scope into major categories to outline deliverables and milestones

• Determine primary time table for deliverables

• Modify critical paths based on prevailing conditions

• Develop workarounds to overcome obstacles in the critical path

• Integrate, review, and validate critical relationships with primary parties

• Receive and understand client constraints

• Able to modify and adjust to software – Manual J Software, AutoCAD, Wrightsoft-Wrightdraw, RESCheck, REM/Rate/Ekotrope and COMCheck

• Manage and control all data through Excel and SharePoint

• Interface with Operations, Owners, and Subcontractors to discuss impact of work and resolution of problems.


• Advanced Proficiency in Excel/SharePoint

• Strong Attention to Detail

• Deadline-Oriented

• Efficient Time Management Skills

• Effective Interpersonal Skills

• Excellent Verbal/Written Communication Skills

• Ability to read/write/comprehend technical instructions

Education and/or Experience:

• BS Degree in Mechanical Engineering is required.

• Candidate must have an EIT (Fundamentals of Engineering Exam) or be willing to take the EIT Exam within 3 months of hire

• Candidate must have a CHD (Certified HVAC Design) Certification or be willing to obtain the certification within 6 months of hire

• P.E. Certification is NOT required. LEED Certification is NOT required but is a PLUS.

• 4 to 6 years of relevant work experience in commercial projects such as 4-story townhomes, apartment buildings, condo buildings, and 1-story commercial projects including but not limited to office (tenant) fit outs, garages, restaurants, and lounges.

First Name

Last Name

Email Address

Upload Resume

Enter the code

NGBS Partner
Green Globes
ECRI Institute
Indoor Air Quality Association
IBHS - Insurance Institute for Business & Home Safety
Member ICC - International Code Council
EPA Indoor AirPlus
Efficiency First