Sr. Mechanical Design Engineer

Job Category: Full Time – Direct Hire OpportunityPay Range : $55.00 - $75.00/Hour + Full BenefitsBBSI is partnering with a respected mechanical design-build firm to hire a Senior Mechanical Engineer who wants more than just producing drawings.This is a hands‑on, high‑impact position where you will lead HVAC system design, influence project outcomes, and collaborate closely with project managers and field teams while mentoring junior engineers.Position OverviewThe Senior Mechanical Engineer serves as a technical lead designer responsible for delivering code-compliant, buildable, and well‑coordinated mechanical designs from concept through construction. This role has full ownership of project deliverables and provides technical leadership without direct personnel management responsibilities.Key ResponsibilitiesTechnical Design LeadershipLead HVAC system design from basis of design through permit and issued‑for‑construction documentsEstablish system selection, equipment sizing, and control strategiesDesign both air‑side systems (VAV, DOAS, exhaust, pressurization, heat recovery) and water‑side systems (hydronic plants, pumping, valves, heat rejection)Ensure compliance with California codes, energy standards, and local AHJ requirementsQA/QC and Engineering ExcellenceOversee quality control of load calculations, duct and pipe sizing, equipment schedules, and design detailsPerform thorough design reviews to ensure accuracy, coordination, and field constructabilityCoordination and Field IntegrationPartner with Project Managers to present systems and solutions to clients and stakeholdersParticipate in site walks and existing condition assessmentsProvide construction‑phase support including submittal reviews, RFIs, and design clarificationsMentorship and Team SupportGuide and mentor junior engineers on design fundamentals, codes, and best practicesContribute to improving engineering standards, processes, and overall team performanceMinimum Qualifications7–10+ years of experience in commercial HVAC designBachelor's degree in Mechanical Engineering or equivalentProfessional Engineer (PE) license preferred but not requiredStrong understanding of HVAC systems, equipment, and construction practicesProficiency in Carrier HAP, Trace 700, EnergyPro, or similar toolsProficiency in AutoCAD; Revit experience preferredStrong knowledge of California building codes and energy requirementsMedical, Dental, and Vision InsuranceDisability Insurance and HSACompany‑Paid Life InsurancePremium health coverage optionsCompetitive compensation with commission structureTeam‑building events#J-18808-Ljbffr