Joshua Rivera
Sweetwater
Summary
Dynamic Maintenance Manager with a strong track record in implementing preventive maintenance programs and optimizing maintenance schedules. Expertise in safety protocols and team management, contributing to significant cost reductions and enhanced equipment performance.
Overview
14
14
years of professional experience
Work History
Maintenance Manager
Parkdale Enterprises LLC
Sweetwater, TX
09.2025 - 12.2025
- Conducted routine inspections to ensure optimal equipment functionality and safety compliance.
- Developed maintenance schedules to minimize downtime and extend equipment lifespan.
- Coordinated with vendors for timely procurement of maintenance supplies and services.
- Trained team members on maintenance best practices and safety protocols.
- Maintained accurate records of maintenance activities and equipment performance logs.
- Implemented preventive maintenance programs to reduce repair costs and enhance reliability.
HVAC Technician/HVAC Installer
TOP TECH Heating and Cooling
Sweetwater, TX
08.2024 - 07.2025
- Performed routine maintenance on HVAC systems to ensure optimal performance and efficiency.
- Diagnosed and repaired heating and cooling units using industry-standard tools and techniques.
- Assisted in installing new HVAC systems, ensuring adherence to safety protocols and manufacturer specifications.
- Conducted system inspections and identified potential issues, providing recommendations for repairs or upgrades.
- Collaborated with team members to troubleshoot complex HVAC problems, enhancing overall service delivery.
- Maintained accurate records of service calls, repairs, and maintenance activities for customer reference.
- Educated clients on proper HVAC system operation and energy-saving practices to improve user experience.
QA Inspector/ Billing & Estimation
Eagle Railcar Services
Roscoe, TX
04.2019 - 01.2023
- Conducted thorough inspections of railcars to ensure compliance with safety standards and regulations.
- Identified defects and non-conformities, documenting findings for corrective actions.
- Collaborated with maintenance teams to streamline inspection processes and improve turnaround times.
- Utilized precision measurement tools to verify components meet specifications and quality benchmarks.
- Trained new inspectors on quality assurance protocols and best practices in railcar inspection.
- Analyzed inspection data to identify trends, contributing to continuous improvement initiatives.
- Developed detailed reports summarizing inspection results for management review and decision-making.
- Communicated with production team members about quality issues.
- Reported repeated issues to supervisors and other departments, collaborating to identify issue roots and rectify problems.
- Used calipers and micrometer measuring instruments.
- Maintained accurate records of inspection findings, facilitating data-driven decision-making for process improvements.
- Performed visual inspections and non-destructive tests where appropriate.
- Implemented quality control measures that enhanced overall product reliability and customer satisfaction.
- Conducted training sessions for new Quality Assurance Inspectors, ensuring a consistent approach across the team.
- Recommended changes to assembly and production lines based on repeat product issues.
- Upheld safety regulations within the workplace by consistently following guidelines during inspections.
- Compared colors, shapes, textures and grades of products and materials with color charts, templates, or samples to verify conformance to standards.
- Assisted in the development of comprehensive quality control plans, outlining procedures and guidelines for inspectors.
- Maintained calibration records and vendor certifications.
- Inspected incoming and outgoing materials for accuracy and quality.
- Performed root cause analysis to identify and resolve defects, improving quality standards.
- Followed safety protocols while handling hazardous materials.
- Recorded inspection and test results on data sheets.
- Provided feedback to production team regarding product quality.
- Trained other workers in inspection and testing procedures.
- Ensured compliance with industry standards by meticulously reviewing product specifications and requirements.
- Provided valuable input during product development stages, ensuring seamless integration between design specifications and QA requirements.
- Participated in internal audits to verify adherence to established quality management systems and identify opportunities for enhancement.
- Aided in reducing material waste by identifying recurring issues early on in the production cycle.
- Reduced defect rates by implementing effective inspection processes and recommending corrective actions.
- Collaborated with cross-functional teams to address root causes of defects and implement preventive measures.
- Evaluated components and final products against quality standards and manufacturing specifications.
- Inspected quality of products, taking note of functionality, appearance and other specifications.
- Identified and documented quality discrepancies for management to develop resolutions.
City Letter Carrier
United States Postal Service, USPS
Sweetwater, TX
02.2018 - 01.2019
- Delivered mail and packages efficiently across designated routes, ensuring timely service to residents.
- Maintained accurate records of deliveries and pickups, enhancing operational efficiency.
- Implemented safety protocols to minimize hazards while navigating various terrains and weather conditions.
- Trained new employees on delivery processes, promoting consistent service standards within the team.
- Collaborated with management to optimize delivery routes, improving overall route efficiency.
- Resolved customer inquiries and complaints effectively, fostering positive community relations.
- Conducted regular inspections of postal equipment and vehicles, ensuring compliance with safety regulations.
- Picked up outgoing mail from letter boxes and in person from customers.
- Provided exceptional customer service, addressing inquiries regarding mail and package deliveries.
- Assisted in developing strategies for improved sorting and processing methods, enhancing workflow productivity.
- Displayed a strong work ethic and punctuality, consistently arriving on time for scheduled shifts and completing deliveries in an efficient manner.
- Navigated through various weather conditions safely while ensuring the prompt delivery of mail items.
- Improved customer satisfaction by delivering mail accurately and efficiently to city residents.
- Enhanced the public''s trust in the postal service by conducting all assigned tasks with professionalism and integrity while representing the organization.
- Planned and cased mail in sequence of delivery for designated route.
- Ensured timely delivery of packages and parcels by adhering to established routes and schedules.
- Adhered to all postal regulations and guidelines when handling sensitive materials such as restricted mail items or hazardous substances.
- Promoted community engagement by participating in special events such as Stamp Out Hunger Food Drive and Operation Santa.
- Reduced instances of misdelivered mail by verifying addresses before handing off items to recipients during delivery rounds.
- Engaged customers with pleasant demeanor and offered to help with mail-related issues.
- Trained new employees on proper procedures for sorting, organizing, and delivering mail within designated areas effectively.
- Collaborated with fellow letter carriers to ensure complete coverage of assigned routes during absences or vacations.
- Used portable devices to maintain system records by scanning items delivered to homes and businesses.
- Enhanced operational efficiency by sorting and organizing mail for delivery in a timely manner.
- Delivered packages and mail to business and people in local area.
- Supported the overall mission of the postal service by maintaining integrity when handling confidential information found within mailed items.
Machine Operator/ Wet End Supervisor
Georgia-Pacific/ Koch Industries
Sweetwater, TX
08.2014 - 07.2017
- Operated machinery to ensure consistent production of quality products.
- Monitored equipment performance and conducted routine maintenance to enhance efficiency.
- Collaborated with team members to streamline workflows and reduce downtime.
- Trained new operators on safety protocols and machinery operation procedures.
- Led safety meetings, promoting adherence to industry regulations and best practices.
- Implemented process improvements that increased productivity and reduced waste.
- Analyzed production data to identify trends and recommend operational adjustments.
- Coordinated with cross-functional teams to optimize supply chain processes and material handling.
HVAC Technician/HVAC Installer
NAOMAR SERVICES
Colorado City, TX
02.2014 - 07.2014
- Implemented preventive maintenance schedules to reduce equipment downtime and enhance reliability of systems.
- Performed troubleshooting on HVAC systems to determine root cause of issues.
- Installed new heating, ventilation, and air conditioning systems in residential and commercial buildings with precision and attention to detail.
- Troubleshot complex HVAC problems, identifying root causes and implementing effective solutions.
- Utilized diagnostic equipment effectively in order to identify malfunctioning components within HVAC systems accurately.
- Conducted maintenance service on HVAC systems to increase life expectancy of equipment and prevent costly repair work.
- Repaired and replaced motors, bearings and belts.
Water Transfer Supervisor
Select Energy Services
Sweetwater, TX
01.2013 - 01.2014
- Supervised water transfer operations, ensuring compliance with safety regulations and operational standards.
- Coordinated logistics for water transport, optimizing routes to enhance efficiency and reduce delays.
- Trained and mentored team members on equipment operation and safety protocols, fostering a culture of safety.
- Developed and implemented standard operating procedures to improve workflow and minimize incidents.
- Conducted regular safety inspections of equipment and job sites, identifying potential hazards proactively.
- Collaborated with cross-functional teams to streamline processes and enhance communication across operations.
- Established a strong working relationship with clients, ensuring their needs were met while maintaining strict adherence to regulatory requirements.
- Identified opportunities for process improvement within the department, leading initiatives that resulted in increased productivity and cost savings.
- Coordinated with external vendors and suppliers to secure required equipment and materials for projects at competitive prices.
- Implemented robust quality control measures throughout all stages of water transfer operations, ensuring compliance with relevant regulations and client specifications.
- Increased efficiency in water transfer operations by implementing advanced technology and streamlined processes.
- Played a key role in the successful completion of numerous large-scale water transfer projects by providing leadership, technical expertise, and effective project management skills.
- Enhanced communication between departments by establishing clear channels and regular reporting mechanisms.
- Conducted regular performance evaluations for team members, providing constructive feedback and setting achievable goals for professional development.
- Improved safety standards for the team by regularly conducting safety trainings and updating safety protocols.
- Developed comprehensive training programs for new employees, resulting in faster onboarding times and reduced skill gaps among staff members.
- Ensured timely response to emergency situations related to water transfer systems by developing contingency plans and providing necessary resources.
- Stayed calm and focused in emergency situations to provide efficient fixes for diverse mechanical problems.
- Recorded operating data such as products and quantities pumped, stocks used and operating times.
- Monitored gauges and flowmeters and inspected equipment to verify tank levels, temperatures and pressures remained at specified levels, reporting abnormalities as necessary.
- Maintained safe and accurate pump levels and closely watched pump gauges.
- Communicated with other workers using signals, radios or telephones to start and stop flows of materials or substances.
- Completed detailed tool and equipment inspections both in field and in shops to identify and address malfunctions and performance concerns.
- Operated and lubricated tools to protect durability and functionality.
- Kept shop workspaces and various fieldwork locations clean and organized for maximum productivity.
Security Officer
G4S Secure Solutions
Sweetwater, TX
07.2011 - 11.2012
- Monitored security systems, ensuring real-time responses to alarms and incidents.
- Conducted regular patrols to maintain safety and security in assigned areas.
- Collaborated with local law enforcement during emergency situations to ensure effective resolution.
- Trained and mentored junior officers on security protocols and best practices.
- Developed incident reports, documenting events for compliance and analysis.
- Implemented access control measures, enhancing facility safety and visitor management.
- Evaluated security procedures, leading initiatives that improved operational efficiency.
- Coordinated emergency response drills, fostering preparedness among staff and stakeholders.
- Greeted guests professionally and courteously to cultivate welcoming atmosphere while making safety top priority.
- Acted quickly during emergency situations to reduce opportunity for damage and injury.
- Patrolled and monitored premises in company vehicle, on bicycle, and by foot.
- Oversaw daily monitoring and patrolled buildings, grounds, and work sites.
- Reported suspicious activities and persons to law enforcement.
- Checked identification of persons entering and exiting facility to eliminate unauthorized visitors.
- Monitored and authorized entrance and departure of vehicles, cargo trucks, and visitors.
- Improved overall security by conducting regular patrols and monitoring surveillance systems.
- Conducted thorough investigations into security incidents, documenting findings, and recommending appropriate actions.
- Managed access control systems efficiently, ensuring accurate records of employee badges for restricted areas were maintained at all times.
- Enhanced security measures by staying up-to-date on industry best practices, attending training sessions, and obtaining relevant certifications.
Education
Criminal Justice
University of Phoenix
Tempe, AZ05-2013
High School Diploma -
Sweetwater Highschool,.,qqqqnn
Sweetwater, TX05-2010
Skills
- Preventive Maintenance
- Project management
- Equipment troubleshooting
- Maintenance planning
- Work order management
- Staff management
- Safety protocols
- Predictive maintenance
- Continuous improvement
- Facilities maintenance
- Inventory monitoring
- Contractor oversight
- Budget administration
- Inventory replenishment
- Asset management
- Parts oversight
- Expense tracking
- Budgeting and cost control
- Cost control
- Teamwork and collaboration
- Scheduling and coordinating
- Professional and courteous
- Good judgment
- Strategic planning
- Budget management
- Employee coaching and mentoring
- Team development
- Goal setting
- Performance evaluations
- Staff training
- Employee development
- Interpersonal relations
- Customer relationship management
- Customer service
- Performance reviewing
- Onboarding and orientation
- Idea development and brainstorming
- Process improvement
- Human resources management
Timeline
Maintenance Manager
Parkdale Enterprises LLC
09.2025 - 12.2025
HVAC Technician/HVAC Installer
TOP TECH Heating and Cooling
08.2024 - 07.2025
QA Inspector/ Billing & Estimation
Eagle Railcar Services
04.2019 - 01.2023
City Letter Carrier
United States Postal Service, USPS
02.2018 - 01.2019
Machine Operator/ Wet End Supervisor
Georgia-Pacific/ Koch Industries
08.2014 - 07.2017
HVAC Technician/HVAC Installer
NAOMAR SERVICES
02.2014 - 07.2014
Water Transfer Supervisor
Select Energy Services
01.2013 - 01.2014
Security Officer
G4S Secure Solutions
07.2011 - 11.2012
Criminal Justice
University of Phoenix
High School Diploma -
Sweetwater Highschool,.,qqqqnn