Dian Castillo
Fullerton,CA
Summary
Maintenance and operations professional with 8+ years of experience in contractor services and commercial facility maintenance. Strong background in team coordination, vendor negotiation, repair estimating, and preventative maintenance. Experienced in renovation, home improvement, and repair projects for both residential and commercial properties.
Overview
2027
2027
years of professional experience
1
1
Certification
Work History
Commercial Pool & Repair Technician
The Pool Pros
Costa Mesa, CA
03.2023 - Current
- Manage and service 10+ commercial accounts, ensuring consistent maintenance and client satisfaction
- Diagnose equipment issues and perform repairs on pumps, filtration, and related systems
- Prepare repair estimates and clearly communicate scope of work with clients
- Order parts, track inventory, and coordinate timely repairs to minimize downtime
- Perform routine and preventative maintenance, helping reduce emergency repairs
- Maintain compliance with safety and health standards for commercial facilities
- Built strong client relationships, contributing to repeat business and long-term accounts
Assistant Project Manager
Orochena Construction Services
Encino, CA
2018 - 2023
- Assisted in managing a team completing 50+ renovation and repair projects per year for residential and commercial clients
- Coordinated and participated in remodeling, repairs, and property improvement projects
- Performed and oversaw work including plumbing, electrical, drywall, painting, and general construction
- Prepared project estimates and scopes of work, supporting accurate budgeting and planning
- Ordered materials and managed inventory across multiple job sites
- Negotiated with vendors, helping reduce material costs by 10 –15%
- Scheduled jobs and coordinated crews to consistently meet project deadlines
- Ensured quality control and high client satisfaction throughout project completion
- Provided hands-on troubleshooting and repair support across multiple trades
Education
High School Diploma -
Colegio Centro America
Managua, Nic12-2013
Skills
- Renovation & home improvement projects
- Commercial & residential property services
- Repair estimating & job costing
- Team coordination
- Vendor negotiation & purchasing
- Multi-trade repairs (plumbing, electrical, drywall, painting)
- Preventative maintenance
- Inventory & materials management
Certification
CPO
OSHA10
Languages
English
Native or Bilingual
Spanish
Native or Bilingual
Interests
- Auto Repair/Restoration
- Outdoor Recreation
- Gym Workouts
Timeline
Commercial Pool & Repair Technician
The Pool Pros
03.2023 - Current
Assistant Project Manager
Orochena Construction Services
2018 - 2023
High School Diploma -
Colegio Centro America