John Cortes
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John Cortes Email & Phone Number

Facilities Manager at Energy Systems Group (ESG)
Location: El Cajon, California, United States 8 work roles 5 schools
1 work email found @energysystemsgroup.com LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 86%

Contact Signals · 1 work email

Work email j****@energysystemsgroup.com
LinkedIn Profile matched
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Current company
Role
Facilities Manager
Location
El Cajon, California, United States
Company size

Who is John Cortes? Overview

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Quick answer

John Cortes is listed as Facilities Manager at Energy Systems Group (ESG), a with 336 employees, based in El Cajon, California, United States. AeroLeads shows a work email signal at energysystemsgroup.com and a matched LinkedIn profile for John Cortes.

John Cortes previously worked as Assistant Facilities Manager at Energy Systems Group (Esg) and Quality Assurance Inspector at Us Navy. John Cortes holds Lean Six Sigma from Villanova University.

Company email context

Email format at Energy Systems Group (ESG)

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{first_initial}{last}@energysystemsgroup.com
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AeroLeads found 1 current-domain work email signal for John Cortes. Compare company email patterns before reaching out.

Profile bio

About John Cortes

Facilities Manager onsite NASNI supplying operational and maintenance support for various equipment located onsite to include boilers (steam and water), split systems, and air compressors. Manages onsite personnel to keep equipment operational and provide the best possible service to the customer.

Current workplace

John Cortes's current company

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Energy Systems Group (ESG)
Energy Systems Group (Esg)
Facilities Manager
newburgh, indiana, united states
Employees
336
AeroLeads page
8 roles

John Cortes work experience

A career timeline built from the work history available for this profile.

Facilities Manager

Current

Coronado, California, United States

Leads a small team of skilled professionals to operate and maintain equipment under an ESPC contract which decentralized steam service at NASNI Coronado.

Oct 2023 - Present

Assistant Facilities Manager

Coronado, California, United States

Assistant Facilities Manager on NASNI Coronado.

Aug 2022 - Oct 2023

Quality Assurance Inspector

Norfolk, Virginia, United States

Working for Fleet Maintenance Support Branch under Shipyard authority for Code 133 inspectors to provide quality assurance oversite and surveillance to jobs performed by shipyard personnel.

Nov 2019 - Aug 2022

Nuclear Machinist Mate

Nuclear Machinist’s Mates operate and maintain steam turbines and reduction gears used for nuclear ship propulsion and auxiliary machinery such as turbogenerators, pumps and oil purifiers. They also maintain auxiliary machinery outside of main machinery spaces, such as electrohydraulic steering engines and elevators, refrigeration plants, air conditioning systems and desalinization plants. They also operate and maintain compressed gas producing plants. Nuclear-trained MMs perform duties in nuclear propulsion plants operating reactor control, propulsion and power generation systems.

Nov 2013 - Aug 2022

A3Ma

Norfolk, Virginia, United States

In charge of scheduling all maintenance in Reactor department onboard a USN Carrier. Led 21 Work center supervisors in coordination meetings to create daily work schedules 3 weeks in advance during a major availability (Maintenance Overhaul). Gave divisional training on proper work and maintenance practices to increase level of knowledge and improve quality. Performed program reviews on different work divisions which included electrical, radiological, and mechanical areas of focus. Coordinated with Shipyard to help create and implement a maintenance and testing plan affecting both entities.

Nov 2018 - Nov 2019

Work Center Supervisor

Norfolk, Virginia, United States

Directly oversaw 30-person team for the completion of 1,543 SOPs encompassing 5,320-man hours. Managed, scheduled, and tracked all corrective and preventative maintenance through various computer programs such as SKED, ESOMS, EWAF and POMNGS to include work procedure generation and parts ordering for over 412 jobs this year alone. Directed the completion of 1,635 material deficiencies to return full system capabilities and complete the testing program.

Nov 2017 - Nov 2018

Maintenance Group Supervisor

Norfolk, Virginia, United States

Led 21 person team to complete 687 equipment deficiencies including 17 valve overhauls, 24 valve seat repairs, 45 relief valve tests, 25 system integrity corrections, and 7 pump packing repacks. In charge of all corrective maintenance tasks in a Reactor Propulsion division. Job responsibilities included scheduling, work procedure generation, and parts ordering.

Nov 2016 - Nov 2017

Craftsmen

Performed preventative maintenance using SOPs and utilized multiple computer programs to document and research tasks.

Nov 2015 - Nov 2016
Team & coworkers

Colleagues at Energy Systems Group (ESG)

Other employees you can reach at energysystemsgroup.com. View company contacts for 336 employees →

5 education records

John Cortes education

Nuclear Power Technology/Technician

Prototype: Nuclear Power Training Unit (Nptu) Charleston

Hands-on study of the design of mechanical and electrical systems of a nuclear power plant to include casualty response actions. Nuclear.

FAQ

Frequently asked questions about John Cortes

Quick answers generated from the profile data available on this page.

What company does John Cortes work for?

John Cortes works for Energy Systems Group (ESG).

What is John Cortes's role at Energy Systems Group (ESG)?

John Cortes is listed as Facilities Manager at Energy Systems Group (ESG).

What is John Cortes's email address?

AeroLeads has found 1 work email signal at @energysystemsgroup.com for John Cortes at Energy Systems Group (ESG).

Where is John Cortes based?

John Cortes is based in El Cajon, California, United States while working with Energy Systems Group (ESG).

What companies has John Cortes worked for?

John Cortes has worked for Energy Systems Group (Esg) and Us Navy.

Who are John Cortes's colleagues at Energy Systems Group (ESG)?

John Cortes's colleagues at Energy Systems Group (ESG) include Ian Topping, Tony Prelec, David Base, Ross Aycock, and Keitlhokometse Dibha.

How can I contact John Cortes?

You can use AeroLeads to view verified contact signals for John Cortes at Energy Systems Group (ESG), including work email, phone, and LinkedIn data when available.

What schools did John Cortes attend?

John Cortes holds Lean Six Sigma from Villanova University.

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