Summary
Overview
Work History
Education
Skills
Languages
Timeline
Generic

Jonathan Mejorada

Panorama City,CA

Summary

Experienced Waterproofer with background in residential and commercial projects. Hands-on experience installing waterproofing membranes, sealants, and other protective barriers to prevent water damage. Skilled in working under extreme conditions, including triple-digit heat, while maintaining safety, quality and efficiency. Experienced with reading plans, operating job site equipment, and collaborating with crews and inspectors to meet deadlines. Strengths include problem-solving abilities, an understanding of construction materials, and methods. Previous work has contributed significantly to preventing structural damage and prolonging the life of buildings. Experienced in fast-paced environments and adaptable to last-minute changes.

Overview

6
6
years of professional experience

Work History

Waterproofer and Methane Mitigation Installer

Ralph Ray Construction
Los Angeles, CA
02.2019 - Current
  • Installed methane mitigation systems, including passive and active venting systems, membrane barriers, and sealants, in compliance with local building codes.
  • Repaired existing waterproofing systems by patching or replacing worn out or damaged components.
  • Tested applied coatings for air tightness using smoke tests.
  • Operated hand tools, coring drills, pressure sprayers, and heat welders for the precise installation of waterproofing/methane materials.
  • Operated a gradall forklift and a compact track loader to move and unload material.
  • Read and interpreted site plans, methane mitigation layouts, and specifications to ensure accurate installation.
  • Performed physically demanding waterproofing and methane mitigation work in triple-digit temperatures, maintaining productivity and safety under extreme conditions.

Education

GED -

Vaughn Next Century Learning Center
San Fernando, CA
06-2019

Skills

  • Methane mitigation
  • Waterproofing installation
  • Air tightness testing
  • Site plan interpretation
  • Equipment operation
  • Material handling
  • Time management
  • Attention to detail
  • Quality assurance
  • Ventilation systems
  • Team collaboration
  • Heavy machinery operation
  • Organizational skills
  • Heavy Lifting

Languages

English
Full Professional
Spanish
Professional

Timeline

Waterproofer and Methane Mitigation Installer

Ralph Ray Construction
02.2019 - Current

GED -

Vaughn Next Century Learning Center