David Morales Tul
Arlington
Summary
Results-driven Wastewater Treatment Plant Operator with expertise in process monitoring, equipment calibration, and regulatory compliance. Proven track record in maintaining water quality and implementing safety protocols.
Overview
16
16
years of professional experience
Work History
Wastewater Treatment Plant Operator
Kovalus Separation Solutions
Wilmington
07.2021 - 05.2026
- Operated wastewater treatment equipment to maintain optimal performance.
- Monitored water quality parameters to ensure compliance with regulations.
- Implemented safety protocols to protect personnel and equipment.
- Recorded and reported daily operational data for regulatory compliance.
- Operated valves, pumps, blowers and aeration systems to control flow and processing of wastewater.
- Maintained records of process operations including flows rates, chemical dosages, test results, maintenance activities and other relevant data.
- Sampled and tested wastewater, applied chemical dosing, received chemical shipments, and performed wastewater plant preventive maintenance and minor corrective maintenance.
- Calibrated instruments such as meters, controllers and gauges on a regular basis to maintain accuracy levels.
- Communicated effectively with co-workers when discussing operation issues or troubleshooting problems.
- Monitored, adjusted, and maintained chemical feed systems for pH control, chlorine disinfection, and sludge conditioning.
- Tested wastewater samples for pollutants using standard laboratory tests such as BOD and COD, ammonia, total suspended solids, oil and grease and other parameters.
- Performed watch duties and maintenance for plant chlorination equipment, centrifuges, heat exchanger equipment, boilers, valves, pipes and meters.
Produce Clerk
Trader Joe's
Arlington
02.2026 - 03.2026
- Organized produce displays to enhance visual appeal and accessibility.
- Maintained cleanliness and sanitation of produce department area.
- Rotated produce items to ensure freshness.
- Responded promptly to customer inquiries regarding product availability and pricing.
- Organized displays of fresh fruits and vegetables in the store.
Machine Operator
Rich Company
Salem
07.2023 - 10.2023
- Operated machinery to ensure efficient production and workflow.
- Conducted routine maintenance to keep equipment in optimal condition.
- Monitored production processes for quality control and safety compliance.
- Collaborated with team members to troubleshoot operational issues promptly.
- Adjusted machine settings based on production requirements and specifications.
- Ensure that safety guidelines are followed at all times while operating machinery.
- Prepared machine for production processes by equipping with required tools and parts.
Technical Support Call Center Representative
Digitex
Guatemala
02.2013 - 05.2013
- Resolved customer inquiries through phone and chat support.
- Managed technical issues related to software and hardware products.
- Escalated complex issues to higher-level technical teams as needed.
- Resolved customer complaints promptly and professionally.
- Diagnosed hardware, software, and network problems using established methods.
- Collaborated with other departments in order to provide optimal solutions for customers' needs.
CCTV Installation Technician
Multiservice VP
Guatemala
02.2012 - 03.2013
- Installed CCTV cameras and security systems at various client locations.
- Conducted routine maintenance and troubleshooting of surveillance equipment.
- Provided technical support for CCTV systems to clients and staff.
- Inspected installations for compliance with safety regulations and standards.
- Responded to service calls for urgent repairs and technical assistance.
- Installed, tested and configured CCTV systems in a variety of settings.
- Configured software applications for efficient operation of the CCTV system.
- Installed power supplies, network cables and other related components.
- Mounted cameras, brackets and other hardware components according to specifications.
- Collaborated with technicians during complex installations involving multiple cameras.
- Calibrated cameras for optimal image capture quality.
- Programmed camera parameters to ensure optimal performance.
- Monitored alarm signals from sensors and provided prompt response when necessary.
- Met with clients to discuss security features, needs and service costs.
- Determined appropriate tools and equipment needed to perform repairs on commercial and residential systems.
Electronics Technician
www.max.com.gt
Guatemala
10.2010 - 12.2011
- Diagnosed equipment malfunctions using testing instruments and tools.
- Documented repair processes and maintenance activities in logs.
- Replaced defective parts using soldering techniques as required.
- Identified and diagnosed malfunctioning electronic components, systems, and equipment.
- Installed, configured, tested, maintained, repaired and troubleshot electronic components, systems and equipment.
- Interpreted engineering diagrams to successfully troubleshoot faults.
- Repaired systems, equipment and subassemblies by replacing defective components or line replaceable units.
- Calibrated electrical instruments using standard test equipment such as oscilloscopes, signal generators and multimeters.
- Performed preventive maintenance on electronics systems to ensure optimal performance.
- Created detailed documentation of all repair processes including notes on product defects or malfunctions encountered during service calls.
- Read schematics and technical diagrams to determine the best course of action for repairs or modifications.
- Analyzed data collected from tests performed on various pieces of equipment in order to identify any issues that may require further investigation or corrective action.
- Provided technical support services over the phone for customers having difficulty troubleshooting their own electronic devices.
- Built prototype circuits to demonstrate functionality in accordance with engineering specifications.
- Monitored the performance of electronic systems and made adjustments as needed.
- Configured and programmed electronic devices according to user specifications.
- Calibrated electronic devices and equipment to ensure precise operation.
- Utilized schematics, diagrams, and manuals to accurately troubleshoot issues.
- Participated in continuous education to stay updated on emerging electronic technologies.
- Tested circuitry and electronic components according to engineering instructions, technical manuals or knowledge of electronics.
- Read and interpreted technical manuals, drawings and schematics to make accurate repair decisions.
Education
Basic Cisco Switch Commands -
Intecap.edu.gt
Guatemala City03-2013
Basic of Computer Networking -
Intecap.edu.gt
Guatemala City10-2012
Industrial Electronics Technician Bachelor's -
Institute of Technology Privado Emiliani
Guatemala City08-2011
Software And Hardware Installation Computer -
Intecap.edu.gt
Guatemala City08-2011
Basic PLC Programming -
Intecap.edu.gt
Guatemala City06-2011
High School Diploma -
Ulysses S. Grant High School
Los Angeles, CA05-2008
Skills
- Process monitoring
- Equipment calibration
- Water quality testing
- Preventive maintenance
- Safety protocols
- Instrumentation calibration
- Hazardous material handling
- Water quality monitoring
- Calibrating instruments
- Instrumentation control
- Report writing
- Water sampling
Languages
Spanish
Native/ Bilingual
English
Native/ Bilingual
Affiliations
- Cycling
- Calisthenics Workout
- Recording Electric Guitar
Timeline
Produce Clerk
Trader Joe's
02.2026 - 03.2026
Machine Operator
Rich Company
07.2023 - 10.2023
Wastewater Treatment Plant Operator
Kovalus Separation Solutions
07.2021 - 05.2026
Technical Support Call Center Representative
Digitex
02.2013 - 05.2013
CCTV Installation Technician
Multiservice VP
02.2012 - 03.2013
Electronics Technician
www.max.com.gt
10.2010 - 12.2011
Basic Cisco Switch Commands -
Intecap.edu.gt
Basic of Computer Networking -
Intecap.edu.gt
Industrial Electronics Technician Bachelor's -
Institute of Technology Privado Emiliani
Software And Hardware Installation Computer -
Intecap.edu.gt
Basic PLC Programming -
Intecap.edu.gt
High School Diploma -
Ulysses S. Grant High School