Angel Serra Chajon
Severn,MD
Summary
Skilled Construction and Mechanical Trades Professional with hands-on experience in commercial HVAC and piping installations. Proficient in reviewing work against specifications, verifying dimensions, and conducting equipment inspections. Experienced in hydrostatic testing, leak testing, brazing, and soldering. Strong technical and project management abilities ensure high-quality results and efficient fabrication of components.
Overview
1
1
Certification
5
5
years of professional experience
Work History
Pipefitter
Southland Industries
Laurel, Maryland
05.2025 - 09.2026
- Supported installation and layout of piping and mechanical equipment for commercial and industrial HVAC systems, including VRF systems, cooling towers, chillers,
- Brazed and soldered piping connections and performed or assisted with leak testing to confirm connection integrity.
- Assisted with hydrostatic and pressure testing of piping systems, identifying and addressing leaks to ensure system integrity.
- Conducted quality checks of torqueing to meet specified requirements, verifying work against drawings, isometrics, and applicable specifications.
- Inspected incoming equipment and materials for visible defects or damage before installation; used measuring tools to check dimensions.
- Coordinated with foremen and journeymen to resolve field issues, manage corrective work, handle materials, and maintain an organized work area.
- Conducted inspections of personal protective equipment for safety compliance. for damage, wear, and compliance with safety standards.
Sheet Metal Worker
Southland Industries
Laurel, Maryland
03.2024 - 05.2025
- Installed and supported commercial HVAC equipment and ductwork on data center and office-building projects in a fast-paced construction environment.
- Acquired hands-on experience with air handlers, VAVs, VRF-related equipment, and air testing and balancing (TAB) fundamentals to support mechanical system installations.
- Executed soldering and brazing tasks using hand and power tools under guidance of experienced tradespeople to ensure quality workmanship.
- Coordinated installation activities with crews, managed material handling, and tracked progress to uphold timelines across active job sites.
Duct Installer/HVAC Service Technician
H&R
Capitol Heights, Maryland
10.2023 - 03.2024
- Installed ductwork and assisted with HVAC equipment in residential and commercial settings, including air handlers, VAVs, and mini-split systems.
- Utilized hand and power tools with installation crews to complete field tasks safely and efficiently.
- Followed safe work rules, applying fall protection and PPE to ensure safety on job sites.
- Charged refrigerant and checked pressures for proper system operation.
- Used hand and power tools while working with installation crews to complete field tasks safely and efficiently.
- Charged refrigerant and checked pressures to ensure optimal HVAC system operation.
Driver
SiteOne Landscape Supply
Houston, Texas
05.2023 - 10.2023
- Conducted pre-trip walkarounds and truck checks, verified customer orders, and loaded materials onto 26-foot flatbed truck for timely deliveries.
- Managed irrigation, landscape, and construction supplies, ensuring organized loads for accurate deliveries.
- Inspected brakes, lights, tires, and trailer connections to ensure safety and compliance before departures.
- Handled irrigation, landscape, and construction-related supplies while maintaining organized loads and supporting accurate deliveries.
- Communicated route changes and delays with logistics and warehouse teams.
Driver Helper
Aztec Events and Tents
Houston, Texas
09.2022 - 04.2023
- Loaded, delivered, and assembled event equipment including tents, stages, and dance floors using hand and power tools and safe material-handling practices.
- Arranged seating and signage in designated areas for guest arrivals.
- Monitored event floors for safety, cleanliness, and presentation.
- Prepared seating, signage, and supplies for guest arrivals.
- Communicated schedule changes with supervisors and support staff.
Warehouse Worker
Sheffield and Sheffield Liquidation
Houston, Texas
07.2022 - 08.2022
- Sorted goods by category for efficient processing, inspected, tagged, and prepared assorted goods for shipment.
- Received and processed liquidation merchandise from trucks at Sheffield warehouse, facilitating seamless inventory management.
- Stocked shelves and pallet locations with incoming goods to maintain organized inventory and ensure product availability.
- Maintained clean aisles and organized work areas
Truck Driver / Warehouse Associate
Preferred Meals
Houston
04.2021 - 05.2022
- Delivered and organized products, loaded/unloaded trucks, received warehouse inventory, and built pallets to ensure efficient warehouse operations.
- Operated commercial trucks for daily freight delivery across regional routes, maintaining timely and accurate deliveries.
- Demonstrated safe driving by observing road rules, exercising caution in unfamiliar areas and maintaining vehicle control.
- Communicated with dispatchers to coordinate pickup and delivery times, optimizing scheduling efficiency.
- Delivered and organized products, loaded/unloaded trucks, received warehouse inventory, and built pallets.
Education
High School Diploma -
Some college coursework - Project Management
Skills
- HVAC system installation
- Piping design
- Brazing and soldering
- Leak testing and repair
- Pressure testing support
- Torque verification support
- Quality inspection support
- Isometric drawing review
- Material/equipment verification
- Dimensional measurement tools
- Construction inspection paperwork
- Site coordination
- Field coordination
- Problem solving
- Time management
- Team communication
- Attention to detail
Certification
- OSHA 30
- EPA Universal
- TWIC
- API Rigging Certification
- Offshore Medical Clearance
Timeline
Pipefitter
Southland Industries
05.2025 - 09.2026
Sheet Metal Worker
Southland Industries
03.2024 - 05.2025
Duct Installer/HVAC Service Technician
H&R
10.2023 - 03.2024
Driver
SiteOne Landscape Supply
05.2023 - 10.2023
Driver Helper
Aztec Events and Tents
09.2022 - 04.2023
Warehouse Worker
Sheffield and Sheffield Liquidation
07.2022 - 08.2022
Truck Driver / Warehouse Associate
Preferred Meals
04.2021 - 05.2022