HVAC Design Engineer

United Mechanical•San Jose, CA

2h•$55 - $70

About The Position

United Mechanical is hiring Mechanical Engineers at Levels II and III for its growing Engineering team. The role involves designing and engineering mechanical systems for commercial construction projects, collaborating with project managers, architects, trade partners, and clients, and developing practical, efficient, code-compliant solutions from initial design through construction and commissioning. Candidates will be considered for Mechanical Engineer II or III based on experience, technical proficiency, project complexity, and demonstrated independence. The company describes a collaborative environment with opportunities to expand engineering expertise and grow professionally.

Requirements

Relevant commercial construction experience consistent with the position level.
Strong understanding of mechanical engineering principles, HVAC and/or plumbing systems, equipment, and installation practices.
Knowledge of applicable local and state building codes and engineering standards.
Proficiency with AutoCAD, HAP, or comparable engineering design software.
Strong problem-solving, communication, and collaboration skills.
Ability to coordinate effectively with internal teams, clients, and trade partners.
Mechanical Engineer II typical experience: 3–5 years.
Mechanical Engineer III typical experience: 3–5+ years, with demonstrated advanced technical capabilities and independent project ownership.

Nice To Haves

Bachelor's degree in Mechanical Engineering or a related field.
Experience working for a mechanical contractor or engineering consulting firm.
Revit or BIM experience.
Engineer-in-Training (EIT) certification for Levels I and II.
Professional Engineer (PE) license or equivalent qualification for Level III.

Responsibilities

Design commercial HVAC and/or plumbing systems, including load calculations, equipment selections, and ductwork and piping layouts.
Develop engineering drawings, specifications, and technical documentation using AutoCAD, Revit, and other design software.
Coordinate with project teams, architects, clients, and trade partners to ensure successful design integration.
Evaluate system performance, energy efficiency, and compliance with applicable building codes and standards.
Participate in design reviews, project meetings, and technical discussions.
Conduct site visits to assess existing conditions, verify design feasibility, and support construction activities.
Assist in resolving technical challenges throughout design, construction, and commissioning.
Contribute to continuous improvement and innovative engineering solutions.
For Level II: independently execute complex design assignments, manage multiple project aspects with minimal supervision, develop and review drawings, specifications, and submittals, coordinate design activities and deliverables, participate in client presentations and design-build coordination, evaluate existing systems, and support construction and commissioning.
For Level III: independently manage complex design activities from initial design through completion, take ownership of technical quality and code compliance, coordinate schedules, budgets, resources, and milestones, resolve complex engineering challenges, represent the engineering team in client and cross-functional meetings, and recommend performance and efficiency improvements.