Darien Portie
Bel Air,MD
Summary
Proficient technician specializing in ammonia refrigeration and HVAC maintenance. Strong attention to detail and collaborative skills enhance team performance and safety compliance. Committed to conducting accurate inspections and documentation to support operational excellence.
Overview
1
1
Certification
7
7
years of professional experience
Work History
Ammonia Refrigeration Technician
Smithfield
North East, Maryland
04.2025 - Current
- Maintained ammonia refrigeration systems for optimal performance and safety.
- Conducted routine inspections to identify leaks and equipment malfunctions.
- Troubleshot refrigeration issues under guidance of senior technicians, enhancing system reliability.
- Operated monitoring systems to track temperature and pressure levels consistently.
- Documented maintenance activities and repairs in company logs accurately.
- Coordinated with team members to uphold safety regulations, contributing to a safer work environment.
- Participated in training sessions to improve technical skills and knowledge base.
- Inspected building HVAC systems and parts to assess maintenance requirements.
- Observed safe work practices and conducted safety inspections to reduce workplace accidents.
- Performed preventive maintenance on ammonia refrigeration systems and components.
- Adhered strictly to safety protocols when working with hazardous materials like ammonia.
- Maintained records of all repairs, inspections, and tests performed.
- Worked closely with outside contractors during installation or repair projects.
- Inspected and tested system components for proper operation.
- Tested pipe, tubing joints, and connections for leaks.
- Executed basic repairs on equipment to ensure functionality. such as changing belts, servicing fans and motors and cleaning coils, strainers and filters to optimize equipment performance.
Ammonia Refrigeration Technician
Amick Farms
Laurel, Mississippi
08.2022 - 03.2024
- Maintained ammonia refrigeration systems for optimal performance and safety.
- Conducted routine inspections to identify and address leaks and equipment malfunctions, ensuring system reliability.
- Operated monitoring systems to track temperature and pressure levels consistently.
- Collaborated with team members to ensure compliance with safety regulations.
- Participated in training sessions to improve technical skills and knowledge base.
- Performed preventative maintenance on ammonia refrigeration systems and components.
- Adhered strictly to safety protocols when working with hazardous materials like ammonia.
- Maintained records of all repairs, inspections, and tests performed.
- Worked closely with outside contractors during installation or repair projects.
- Instructed team on safe handling of ammonia refrigeration systems to ensure compliance with safety standards.
- Monitored levels of ammonia in the system to ensure safe operations.
- Serviced coils, filters, fans, motors, and pumps to enhance operational efficiency and prolong equipment lifespan.
- Conducted safety checks on all equipment and reported any issues to management immediately.
- Responded quickly to emergency situations involving ammonia refrigeration systems.
- Tested pipe, tubing joints, and connections for leaks.
- Read technical manuals and schematics to understand specific configurations.
Sander Grader
Georgia-Pacific
Taylorsville, Mississippi
04.2021 - 08.2023
- Operated sanding machines to achieve smooth finishes on wood products.
- Adjusted machine settings to accommodate different material specifications.
- Maintained equipment and performed routine checks for optimal performance.
- Performed regular maintenance tasks on the electric sander including oiling moving parts and cleaning dust collection systems.
- Applied appropriate safety measures when operating electric sanders including wearing protective equipment like goggles and face masks.
- Collaborated with team members to meet production targets effectively.
Line Worker
Sanderson Farm
Collins, Mississippi
01.2020 - 04.2021
- Operated machinery to process poultry in a fast-paced production environment.
- Maintained cleanliness of work areas to comply with safety regulations.
- Collaborated with team members to meet daily production goals.
- Assisted in training new staff on operational procedures and safety practices.
- Cleaned up work area at end of shift to maintain a safe working environment for other employees.
Education
Certificate - NH3 Operator 1
GCAP
Garden City, KS01-2025
Associate of Applied Science - HVACR
Jones County Junior College
Ellisville, MS08-2023
Career Certificate - HVAC
Jones County Junior College
Ellisville, MS08-2023
Certificate of Technical Studies - HVAC
Jones County Junior College
Ellisville, MS08-2023
Certificate - Electrical
ABC Trade School
Baton Rouge, LA08-2014
Skills
- Ammonia systems maintenance
- Leak detection
- Preventive maintenance
- HVAC servicing
- Emergency response
- Equipment troubleshooting
- Filter replacement
- Technical documentation
- Safety protocol adherence
- Team collaboration
- Attention to detail
- Filter replacement
Certification
- Universal EPA
- NCCER (11167437)
Timeline
Ammonia Refrigeration Technician
Smithfield
04.2025 - Current
Ammonia Refrigeration Technician
Amick Farms
08.2022 - 03.2024
Sander Grader
Georgia-Pacific
04.2021 - 08.2023
Line Worker
Sanderson Farm
01.2020 - 04.2021
Certificate - NH3 Operator 1
GCAP
Associate of Applied Science - HVACR
Jones County Junior College
Career Certificate - HVAC
Jones County Junior College
Certificate of Technical Studies - HVAC
Jones County Junior College
Certificate - Electrical
ABC Trade School