Commissioning Engineer, Boiler & HVAC Systems

A licensed Master Plumber and General Contractor serving NYC and Westchester is hiring a Commissioning Engineer to own startup and commissioning on its new mechanical installations, from pre-startup readiness through first fire and verified operation. Because the company self-performs its installation work, you carry that engineering all the way through to a signed-off, documented retrofit. This is a hands-on role in the mechanical room, not a desk job, with a company that's grown from 20 to over 100 employees on a deep, growing installation pipeline.

Responsibilities Build the commissioning plan for each installed system during technical review, including functional tests, KPIs, and required data Review schematics and the Sequence of Operations for HVAC, steam, hydronic, and domestic hot water systems, and raise RFIs before installation

Walk installations near completion of the plumbing scope to confirm hardware, sensors, and wiring are installed and ready for startup

Own the go/no-go call on startup readiness and manage the punch list until the site is ready

Energize and start boilers, pumps, and controls, confirming proper operation of all inputs and outputs

Run combustion analysis on a calibrated analyzer, recording O2, CO, stack temperature, and combustion efficiency across the firing range

Verify safeties and interlocks, including LWCO, high-limit, gas pressure switches, flame safeguard, and proof-of-closure

Troubleshoot line- and low-voltage control circuits and set up long-term test instrumentation for the commissioning phase

Prove system sequencing, staging, and controls, including the company's proprietary building automation platform, perform per design (lead/lag rotation, modulation, setback/changeover schedules)
Produce Commissioning Reports and Boiler Room Settings documentation for the owner and service team

Required Qualifications Bachelor's degree in Mechanical Engineering strongly preferred, or equivalent hands-on heating systems experience4+ years of hands-on experience with commercial boilers, burners, pumps, and controls

Working knowledge of NYC steam and hydronic heating systems

Comfortable working hands-on in an active mechanical room Ability to read mechanical schematics, wiring diagrams, and a written Sequence of Operations Strong written communication skills for owner- and service-facing reports

Valid driver's license and ability to travel to job sites across NYC and WestchesterOSHA SST certification

Preferred3+ years of startup and commissioning experience on boiler or heating-plant installations

Understanding of combustion analysis and optimization

Familiarity with building automation systems (BAS) and remote-monitoring platforms

Knowledge of Local Law 87 and Local Law 97 retro-commissioning and reporting requirements

Compensation and Benefits $125,000 - $140,000 base salary, commensurate with experience, plus incentive compensation
401(k) with company match

Health, dental, and vision insuranceHSA and FSALife insurance

Paid time off and parental leave

This is a confidential search conducted on behalf of the hiring company. The company name is shared directly with candidates who advance in the process.cob2

Salary/Rate:

US $125,000 - US $140,000 per annum

Job Type:Site Based Contract Type:

Permanent Town/City:

Bronx County:

New York Sector:

Construction & Development Job  
-_Post Date:
10. 02. 2026