MacCollin Pelayo
Fallbrook,CA
Summary
Confident, hands-on Journeyman Steamfitter/Welder with a strong background in policy development, staff management, and boosting team morale while keeping productivity high. Former U.S. Marine known for staying calm under pressure, solving problems fast, and improving day-to-day operations and customer outcomes. Experienced coordinating production needs and schedules to keep supply levels on track and teams aligned. Skilled steamfitter/pipefitter with commercial and industrial experience installing, maintaining, and repairing steam/piping systems, reading blueprints, and troubleshooting in the field. Also experienced as a detailer , creating accurate shop drawings and layouts to support fabrication and field installs. Comfortable with multiple welding processes and certified-level work, with a safety-first mindset and consistent focus on quality and compliance.
Overview
16
16
years of professional experience
1
1
Certification
Work History
Diesel Technician
CAMJEP Inc.
Victorville, CA
09.2009 - 10.2016
- Troubleshot systems, traced problems and diagnosed root causes.
- Performed vehicle lubrication and DOT safety inspections.
- Inspected Trucks and Trailers for repair and maintenance needs.
- Completed required documentation such as work-completed reports, timesheets and quality assessments via handwritten forms or business system input screens.
- Assessed equipment for damage, wear, battery life, and fluid levels.
- Maintained safe working conditions by keeping shop areas clean and free from unneeded items.
Field Artillery Radar Operator
United States Marine Corps
05.2017 - 03.2020
- Supervised $48,000,000 worth of inventory to ensure correct goods management and achievement of performance goals
- Monitored team performance to assess training requirements and areas in need of improvement
- Created, spearheaded and supervised employee recognition programs
- Performed daily inspections, charted readings, documented equipment downtime and oversaw maintenance for equipment
- Trained users on technical resources, including desktops, laptops and mobile devices
- Completed troubleshooting and diagnostics on company resources
- Developed and strengthened prototype designs for use by product teams and clients
Journeyman Steamfitter/Welder/Detailer
Jackson And Blanc
San Diego, CA
08.2020 - Current
- Reviewed building plans and drawings to determine work and sequence of installation.
- Read and interpreted blueprints and schematics to determine locations, quantities, and sizes of materials required.
- Measured, cut, prepared and joined pipe using threading, welding, brazing and soldering.
- Streamlined workflow processes to enhance overall project efficiency and execution.
- Reviewed and interpreted blueprints and specifications to construct and lay out piping assemblies.
- Appropriately fitted pipes by identifying dimensions, sizes, and shapes needed to replace faulty pipes.
- Filled pipe systems with water and air to determine location of leaks.
- Collaborated with senior steamfitters to learn advanced installation techniques.
- Installed, repaired, and maintained piping systems in commercial buildings.
- Completed specialized training courses to stay updated on emerging technologies in steamfitting systems.
Education
High School Diploma -
Silverado High School
18 Week Accelerated Pipefitting And Welding Course
Veterans in Piping
Camp Pendleton South, CADetailer Certification - Detailing
A&J Journey Worker CAD Program
El Monte, CA01-2026
Journeyman Steamfitter/Welder Certification - Steamfitting/Welding
UA Steamfitter Apprenticeship
San Diego, CA08-2024
Skills
- Vehicle inspections
- Safe driver training
- Commercial driving expertise
- Safety and compliance
- Equipment operation
- Physical development
- Physical labor
- Field surveying
Certification
- Certified Welder:
- UA-21
- UA-100
- UA-51
- UA-30
- UA-18A
- ASME IX BTS15
- UA Certified Crane Signalperson
- UA Local 230 C.D. Cunningham Award For Excellence
- Meritorious Award For Highest Score Achieved On The P.I.P.E Journeyman Examination Steamfitter
Timeline
Journeyman Steamfitter/Welder/Detailer
Jackson And Blanc
08.2020 - Current
Field Artillery Radar Operator
United States Marine Corps
05.2017 - 03.2020
Diesel Technician
CAMJEP Inc.
09.2009 - 10.2016
High School Diploma -
Silverado High School
18 Week Accelerated Pipefitting And Welding Course
Veterans in Piping
Detailer Certification - Detailing
A&J Journey Worker CAD Program
Journeyman Steamfitter/Welder Certification - Steamfitting/Welding
UA Steamfitter Apprenticeship