Summary
Overview
Work History
Education
Skills
Certification
Timeline
Generic

John Castro

Chicago,United States

Summary

Dynamic Chief Engineer with ABM Janitorial Services, recognized for enhancing equipment uptime through strategic maintenance processes and effective troubleshooting. Proven leader in team direction and safety management, mentoring junior engineers while implementing robust preventive maintenance programs that ensured compliance and improved infrastructure management.

Developed versatile skills in fast-paced engineering environment, excelling in project management and team leadership. Adaptable and ready to transition into new field, leveraging strong analytical and problem-solving abilities. Focused on applying engineering experience to drive success and innovation in diverse settings.

Overview

26
26
years of professional experience
1
1
Certification

Work History

Chief Engineer

ABM Janitorial Services
10.2023 - 09.2025
  • Reduced equipment downtime through proactive preventive maintenance and timely repairs, ensuring smooth operations.
  • Mentored junior engineers, providing guidance on best practices and technical expertise for professional growth.
  • Managed and scheduled equipment and system preventive maintenance programs to verify contractual compliance.
  • Established procedures for corrective and preventive maintenance.
  • Oversaw facility inspections to identify areas of concern or opportunities for improvement in infrastructure management.

Technician A

ABM Janitorial Services
07.2017 - 10.2023
  • Maintained a safe work environment by strictly adhering to established safety protocols and guidelines.
  • Trained new technicians on standard operating procedures, ensuring consistency across the team.
  • Performed troubleshooting and diagnosis on malfunctioning equipment.
  • Completed complex repairs quickly by leveraging strong diagnostic skills and attention to detail.
  • Demonstrated adaptability when faced with new challenges or technologies, enabling quick mastery of necessary skills.
  • Increased customer satisfaction with prompt and knowledgeable support for various technical issues.

Janitor C

ABM Janitorial Services
06.2014 - 06.2017
  • Maintained clean and comfortable environments in commercial buildings by vacuuming, cleaning windows, and dusting.
  • Improved facility cleanliness by performing daily maintenance tasks, such as sweeping, mopping, and vacuuming.
  • Reduced the spread of germs by sanitizing high-touch surfaces such as doorknobs and handrails.
  • Kept building spaces premises clean inside and outside.
  • Maintained a positive and professional demeanor while interacting with building occupants, promoting a respectful work environment.

Head Doorman

Whalen Security
07.2011 - 06.2014
  • Trained new staff on security protocols and customer service standards.
  • Coordinated with building management to resolve tenant concerns promptly.
  • Implemented efficient check-in procedures, enhancing guest experience and satisfaction.
  • Monitored access points to maintain building security and safety compliance.
  • Facilitated communication between security personnel and emergency services during incidents.
  • Conducted regular performance evaluations for door staff, identifying areas of improvement and providing constructive feedback.
  • Provided exemplary customer service by treating each guest with respect and courtesy while maintaining a warm, welcoming atmosphere.
  • Enhanced guest experience by providing consistent, attentive service and maintaining a professional demeanor at all times.
  • Resolved guest complaints quickly and professionally, demonstrating excellent problem-solving skills under pressure.

Doorman

Whalen Security
01.2000 - 06.2011
  • Monitored entry and exit points, ensuring safety and security of residents and guests.
  • Assisted in emergency response procedures, maintaining calm during high-pressure situations.
  • Enforced building policies, promoting a respectful and orderly environment for all occupants.
  • Provided information and assistance to residents, enhancing overall customer service experience.
  • Trained new staff on operational protocols, fostering consistency in security practices across the team.
  • Implemented improvements to access control systems, increasing efficiency in visitor management processes.
  • Conducted regular inspections of premises, identifying potential security vulnerabilities for proactive resolution.
  • Maintained a welcoming environment for residents and guests through courteous greetings and assistance.
  • Offered personalized support for elderly or disabled residents, adapting services according to individual needs.
  • Secured doorways to maintain customer and employee safety and uphold company policies and procedures.
  • Responded to resident complaints, questions, concerns and suggestions and conducted quality assurance follow-up to building issues and inquiries.

Education

General Studies

O.D. Wyatt
Fort Worth, TX

General

O.D. Wyatt
Forth Worth Texas

Skills

  • Maintenance processes
  • Team direction
  • Safety management
  • Safety meetings
  • Project management
  • Troubleshooting
  • Equipment monitoring
  • Workflow planning

Certification

Pool Opperator

Timeline

Chief Engineer

ABM Janitorial Services
10.2023 - 09.2025

Technician A

ABM Janitorial Services
07.2017 - 10.2023

Janitor C

ABM Janitorial Services
06.2014 - 06.2017

Head Doorman

Whalen Security
07.2011 - 06.2014

Doorman

Whalen Security
01.2000 - 06.2011

General Studies

O.D. Wyatt

General

O.D. Wyatt