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 experience 4+ 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
- Preferred 3+ 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.cob2Salary/Rate: US$125,000.00 - US$140,000.00 per annum
Job Type: Site Based
Contract Type: Permanent
Town/City: BronxCounty: New York
Sector: Construction & Development
Job ref: JN -072026-85572_1789500607 Post Date:09. 15. 2026
