Senior Mechanical Engineer

UNITED MECHANICAL; San Jose (CA); On-site; USD 76,000 - 103,000; Full time

Benefits offered by this job

Health Care Plan (Medical, Dental &amp

401k with 4% company match

Paid Time Off

Job summary

UnitedMechanical seeks a Senior Mechanical Engineer to be the hands-on technical lead in our engineering department. You will ensure code-compliant permit and IFC documents and watch designs progress to field startup and operation.

You will mentor junior engineers, drive QA/QC, and partner with Project Managers and the field to deliver clear client communication and predictable project outcomes. 7–10 years in commercial construction and CA code fluency are preferred.

Qualifications

• 7–10 years’ experience in the commercial construction space.
• 4-year engineering degree or equivalent.
• Professional Engineer (PE) license preferred, but not required.
• Excellent understanding of engineering fundamentals, HVAC system types, equipment, installation standards, and procedures.
• Proficient in AutoCAD; Revit experience preferred.

Responsibilities

• Own mechanical design execution from basis-of-design through permit and issued-for-construction (IFC) deliverables.
• Serve as Lead Designer: establish basis of design, system selection, equipment sizing, control intent, and document strategy from kickoff through IFC.
• Design and troubleshoot air-side (VAV, DOAS, exhaust, pressurization, filtration, heat recovery) and water-side (hydronic plants, pumping, control valves, coils, heat rejection) systems.
• Apply California codes and local requirements, including AHJ amendments and applicable energy code.
• Assist Project Managers in presenting and explaining proposals, systems, findings and options to clients, general contractors and engineers.
• Provide field support during construction: submittal review, RFIs, and design clarifications.
• Direct and coordinate the project-based engineering activities of both in‑house and outsourced engineering teams.
• Guide and mentor junior engineers through real project work: fundamentals, codes, design judgment, and documentation quality.

Skills

Field coordination

Leadership

QA/QC

Education

4-year engineering degree or equivalent

Tools

AutoCAD

Revit

Carrier HAP

Trace 700

Energy Pro

Job description

The Senior Mechanical Engineer is one of our Engineering Department’s hands‑on technical lead designers. This role is accountable for code‑compliant, buildable, well‑coordinated permit and construction documents. At UMI, our designs get built. You won’t just issue drawings; you’ll watch your designs get installed, started up, and perform, giving you direct feedback from the field. This position has project and deliverable accountability with no direct personnel responsibility. The Senior Engineer mentors junior engineers, raises the bar on QA/QC, and serves as a trusted technical partner to Project Managers and the field. The intent is to deliver designs that support smooth field execution, clear client communication, and predictable project outcomes.

Responsibilities

Technical ownership

• Own mechanical design execution from basis-of-design through permit and issued-for-construction (IFC)
  deliverables.


• Serve as Lead Designer: establish the basis of design, system selection, equipment sizing, control intent,
  and document strategy from kickoff through IFC.


• Design and troubleshoot both air-side (VAV, DOAS, exhaust, pressurization, filtration, heat recovery, etc.)
  and water-side (hydronic plants, pumping, control valves, coils, heat rejection, etc.) systems.


• Apply California codes and local requirements, including AHJ amendments and applicable energy code.

QA/QC + standards

• Own QA/QC: loads/assumptions, duct/pipe sizing, schedules, details, sequences, coordination, and general
  “will this actually work” sanity checks.

Coordination + field integration

• Assist Project Managers in presenting and explaining proposals, systems, findings and options to clients,
  general contractors and engineers


• Participate in site walks and existing conditions investigations


• Work with Project Managers and the engineering staff to prepare or refine the project scope


• Provide field support during construction: submittal review, RFIs, and design clarifications.

Mentorship + leadership

• Direct and coordinate the project-based engineering activities of both in‑house and outsourced engineering
  teams


• Guide and mentor junior engineers through real project work: fundamentals, codes, design judgment, and
  document quality.


• Give Engineering leadership clear feedback on training needs, performance growth, and where the team
  needs better tooling or standards.

• 7-10 years’ experience in the commercial construction space


• 4-year engineering degree or equivalent


• Professional Engineer (PE) license preferred, but not required


• Excellent understanding of engineering fundamentals, HVAC system types, equipment, installation standards,
  and procedures.


• The ability to assume responsibility, interface, and communicate with others is essential


• Must be fully versed in California and applicable local building codes


• Proficient in the use of Carrier HAP, Trace 700, Energy Pro, or equivalent


• Proficient in AutoCAD: Revit experience preferred


• Prior experience with a mechanical contractor or engineering consultant preferred.

• Health Care Plan (Medical, Dental & Vision)


• Retirement Plan (401k with 4% company match)


• Paid Time Off (PTO & Paid Holidays)

Compensation

$55.00 - $75.00 per hour

UnitedMechanicalisanEqualOpportunityEmployerandembracesdiversityinouremployeepopulation.Weprovide
equalopportunitytoallqualifiedapplicantsandemployeeswithoutregardtorace,color,religion,sex,sexualorientation,
genderidentity,nationalorigin,age,disability,protectedveteranstatus,specialdisabledveteran,maritalstatus,
pregnancy,geneticinformation,oranyotherlegallyprotectedstatus