Installations Commissioning Engineer (HVAC / Boiler Systems)Mount Vernon, NY - Field work across NYC & WestchesterFull-time, In-person$110,000-$140,000 base plus incentive compensationAbout the RoleA licensed Master Plumber and General Contractor serving NYC & Westchester, is hiring a Commissioning Engineer to plan, execute, and own the startup and commissioning of their mechanical installations. You'll take each installed heating and cooling plant from pre-startup readiness through first fire, functional testing, and verified operation, then document the finished system and hand a fully commissioned plant to the owner and the service team.This is a hands-on role. You will be in the mechanical room operating equipment, taking readings, running combustion tests, and verifying control circuits, not directing the work from a desk.What You'll DoBuild the commissioning plan for each installed system during technical review, including functional tests, KPIs, and required dataReview schematics and the Sequence of Operations for HVAC, steam, hydronic, and domestic hot water systems; raise RFIs before installationWalk installations to confirm hardware, sensors, and wiring are complete and ready for startupOwn the go/no-go call on startup readiness and manage the punch list until the site is readyEnergize and start boilers, pumps, and controls; confirm proper operation of all inputs and outputsRun combustion analysis on a calibrated analyzer and record O2, CO, stack temperature, and combustion efficiencyVerify safeties and interlocks, including LWCO, high-limit, gas pressure switches, flame safeguard, and proof-of-closureTroubleshoot line and low-voltage control circuits and set up test instrumentation for the commissioning phaseProve system sequencing, staging, and controls, including the company's proprietary building automation platform, perform per designProduce Commissioning Reports and Boiler Room Settings documentation for the owner and service teamWhat You'll BringRequired:Bachelor's degree in Mechanical Engineering preferred, or equivalent hands-on heating systems experience4+ years of hands-on experience with commercial boilers, burners, pumps, and controlsWorking knowledge of NYC steam and hydronic heating systemsComfortable working hands-on in an active mechanical roomAbility to read mechanical schematics, wiring diagrams, and a written Sequence of OperationsStrong written communication skillsValid driver's license and ability to travel to job sites across NYC and WestchesterOSHA SST certificationPreferred:3+ years of startup and commissioning experience on boiler or heating-plant installationsUnderstanding of combustion analysis and optimizationFamiliarity with building automation systems (BAS) and remote-monitoring platformsKnowledge of LL87 and LL97 retro-commissioning and reporting requirementsWhy This RoleJoin a licensed Master Plumber and General Contractor with in-house installation and service crews. You commission real systems you helped bring online, not paper studies.Full toolkit under one roof: oil-to-gas conversions, CHP, boiler installations, repipes, heating controls, and 24/7 emergency service across NYC and Westchester.A proprietary building automation platform gives you remote monitoring and live performance data to verify operation and back up your commissioning results.The company has grown from 20 to over 100 employees with a deep and growing book of installation work. This role is built to grow with the division.Compensation & BenefitsBase salary $110,000-$140,000, commensurate with experience, plus incentive compensation401(k) with company matchHealth, dental, and vision insuranceHSA and FSALife insurancePaid time off and parental leaveAbout the CompanyOur client is a NYC & Westchester licensed Master Plumber and General Contractor providing oil-to-gas conversions, combined heat and power (CHP) systems, boiler installations, building repipes, heating controls, boiler monitoring, energy supply, and energy efficiency retrofits to residential and commercial buildings.Our client is an Equal Opportunity Employer.cob2Salary/Rate:US$110,000.00 - US$140,000.00 per annumJob Type:Office BasedContract Type:PermanentTown/City:BronxCounty:New YorkSector:Construction & DevelopmentJob ref:JN -072026-85572_1788536875Post Date:09. 04. 2026
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