John T. Mahoney
HELMETTA,N.J.
Summary
I seek a career-orientated position in the field of maintenance or operations that will effectively challenge my experience and qualifications.
Engineering professional with proven ability to innovate and solve complex technical challenges. Known for delivering high-quality solutions and driving team success through effective collaboration and adaptability. Skills include systems analysis, project management, and technical troubleshooting.
Overview
38
38
years of professional experience
1
1
Certification
Work History
Supervisor of Factory Operations
Calpine Cogeneration Facility Santa Rosa
06.2002 - 10.2002
- Supervised the startup and commissioning of the 230MW Co-Generation facility consisting of:
- GE Frame 7FA gas turbine with Siemens Westinghouse TXP control system.
- One GE 75MW extraction/condensing steam turbine
- One Neuter Erickson multi-pressure heat recovery steam generator.
Watch Engineer
The Port Authority of NY/NJ Central Heating and Refrigeration
Newark, NJ
10.2023 - 11.2025
- Operate and maintain the airport heating and refrigeration plant consisting of;
- 6-2,000-ton carrier chillers and 1 4,000-ton carrier chiller
- 4 -50 million BTU ingen high temperature hot water generators
- 7 cell cooling tower, compressors and all related equipment
- Monitored by Honeywell Building Management System Computer
Lead Operating Technician
Newark Bay Cogeneration (Ethos Energy)
Newark, NJ
06.2010 - 08.2023
- Operate and maintain a 130 MW Cogeneration Facility which includes:
- 2 Siemens/Westinghouse W251B12 Gas Turbines.
- 1 Mitsubishi Extraction / Induction Steam turbine rated at 43.6 MW.
- Maintain Continuous Emission Monitoring Equipment.
Shift Supervisor
PSEG Sewaren Generating Station
Sewaren, NJ
03.2008 - 06.2010
- Supervise the daily operation of a 450 MW Fossil plant consisting of:
- Two Siemens and Two GE 950,000 lb boilers
- Duel fuel capability, gas or oil
- Air heaters, Kinney and Nash vacuum pumps
- Salt water cooled condensers
- DAS, CEMs, PEMS Air monitoring Equipment
- Air heaters, Circulators and condensate pumps
Operating Engineer
Merck & Company
Rahway, N.J.
03.2006 - 03.2008
- Operate and Maintain the Merck Power Plant consisting of:
- Four 900 lb. forced draft boilers, Two135 lb. forced draft boilers.
- Three 10MW GE Back pressure turbines.
- ABB / Bailey control system, DAS, Horebia CEMS.
- Responsible for all plant auxiliary equipment.
Shift Supervisor
Athens Power Plant
Athens, N.Y.
10.2002 - 03.2006
- Supervised the startup and commissioning of the 1080 MW Co-Generation Facility consisting of:
- Three Westinghouse 501G gas turbines with TXP control system.
- Three HE 160MW Siemens Westinghouse steam turbines.
- Three Neuter Erickson multi-pressure HRSG’s
Calpine Cogeneration Facility Parlin
Parlin, N.J.
09.1994 - 06.2002
- Operate, maintain, troubleshoot, and repair the 130MW cogeneration facility consisting of:
- Two GE Frame 6 gas turbines with Westinghouse WDPF control system
- Two GEC Alston extraction condensing steam turbines
- Two multi-pressure Intec heat recovery steam generators
Cogen. LTD. Partnership
Hunterdon, N.J.
10.1992 - 09.1994
- Supervised the startup and commissioning of a 4MW Co-Generation facility consisting of
- One Solar 4MW Aero-derivative gas turbine & HRSG.
- Two 800HP Worthington Fire Tube boilers.
First Class Mechanic
AMERCHOL CORPORATION
06.1987 - 10.1992
- Hot water heater & Auxiliary equipment.
Education
Basic and Advanced Welding including Heli-arc, Basic and Advanced Plumbing and Pipefitting, Stationary Engineering 1 and 2
Middlesex County Vocational School
Air Conditioning and Refrigeration Technician
Lincoln Technical Institute
Skills
- Critical thinking
- Project management
- Project planning
- Data analysis
Certification
- NJ Gold Seal First Class Stationary Engineers License.
- NJ 3 RD Class Blue Seal Refrigeration License
- TWIC Certified, Siemens 501G Gas Turbine Experience
- Maintenance Mechanic, Preventive/Corrective maintenance.
- Trouble shooting Gas Turbines, Boilers, HRSG Operations, Water Chemistry.
- Crane Operator, Pipefitting, Welding, Heli-arc & stick, OSHA & Environmental trained.
- Class B/CDL Driver’s License
Timeline
Watch Engineer
The Port Authority of NY/NJ Central Heating and Refrigeration
10.2023 - 11.2025
Lead Operating Technician
Newark Bay Cogeneration (Ethos Energy)
06.2010 - 08.2023
Shift Supervisor
PSEG Sewaren Generating Station
03.2008 - 06.2010
Operating Engineer
Merck & Company
03.2006 - 03.2008
Shift Supervisor
Athens Power Plant
10.2002 - 03.2006
Supervisor of Factory Operations
Calpine Cogeneration Facility Santa Rosa
06.2002 - 10.2002
Calpine Cogeneration Facility Parlin
09.1994 - 06.2002
Cogen. LTD. Partnership
10.1992 - 09.1994
First Class Mechanic
AMERCHOL CORPORATION
06.1987 - 10.1992
Air Conditioning and Refrigeration Technician
Lincoln Technical Institute
Basic and Advanced Welding including Heli-arc, Basic and Advanced Plumbing and Pipefitting, Stationary Engineering 1 and 2
Middlesex County Vocational School