Senior Residential HVAC Designer – Lead (Hybrid)

PEG, LLC; Fairfax (VA); Hybrid; USD 90,000 - 120,000; Full time

Benefits offered by this job

Paid Time Off

Medical Insurance

Dental & Vision Insurance

401(k) with company match

Life & Disability

Professional development & salaryincen

Job summary

PEG LLC is seeking a Senior Residential Mechanical Designer to lead HVAC design work for high-performance homes. The role focuses on accuracy, efficiency, and code compliance, mentoring junior staff, and advancing PEG’s green building practices.

The position is based in Fairfax, VA with a hybrid remote/office schedule. Candidates should have 3+ years of residential HVAC design experience and be proficient in AutoCAD, Wrightsoft, and Manual J/D/S methodologies.

Qualifications

• B.S. Degree in Mechanical Engineering or related field is required.
• EIT encouraged; salary incentive for obtaining it.
• Minimum 3+ years in Residential Mechanical (HVAC) Design.
• Advanced proficiency in AutoCAD.
• Advanced proficiency in HVAC load calculations.
• Advanced proficiency using WrightSoft or similar software.
• Strong understanding of ACCA Manual J, D, and S methodologies.
• Knowledge of IECC, ENERGY STAR, and state residential energy code requirements.
• Experience with green building programs and high-performance residential construction preferred.

Responsibilities

• Lead the preparation, review, and validation of HVAC load calculations, duct sizing, ventilation strategies, and equipment sizing per ACCA and energy codes.
• Serve as a senior technical resource for analysis and design teams.
• Perform advanced QA/QC reviews of residential mechanical designs and energy modeling deliverables.
• Identify design, compliance, or workflow issues and communicate recommendations and resolutions to management.
• Manage complex project scopes with deliverables, milestones, and priorities.
• Establish and maintain project timelines and adjust schedules as needed.
• Develop technical solutions and workarounds to keep projects on track.
• Coordinate and validate design relationships with internal and external stakeholders.
• Interpret client requirements and jurisdictional constraints in designs.
• Use industry software including Manual J, AutoCAD, Wrightsoft, RESCheck, REM/Rate.
• Maintain project documentation and reporting through Excel, SharePoint, and internal systems.

Skills

HVAC design

Lead technical

QA/QC reviews

Excel/SharePoint

Project coordination

Education

B.S. in Mechanical Engineering

EIT encouraged

Tools

AutoCAD

Wrightsoft/Wrightdraw

RESCheck

REM/Rate

Job description

PEG LLC is seeking a Senior Residential Mechanical Designer to lead HVAC design work for high-performance homes. The role focuses on accuracy, efficiency, and code compliance, mentoring junior staff, and advancing PEG’s green building practices.

The position is based in Fairfax, VA with a hybrid remote/office schedule. Candidates should have 3+ years of residential HVAC design experience and be proficient in AutoCAD, Wrightsoft, and Manual J/D/S methodologies.