Sebastian Guerrero
Tustin,CA
Summary
Service Technician with experience in troubleshooting and maintenance. Hands on worker, always prioritizing customer service. Quick learner with experience in multiple industries. Lots of travel time in nearby states. Motivated and always looking to improve.
Overview
2
2
years of professional experience
Work History
Technical Service Representative
Kemira
Paramount, CA
08.2026 - Current
- Serviced water treatment systems for boilers, cooling towers, and other cold/hot water systems.
- Use water testing equipment and reagents to monitor chemical levels.
- Performed post-installation chlorination processes for sinks and water lines, ensuring compliance with safety standards.
- Identified and reported recurring problems or trends to management for timely investigation.
- Compiled and submitted monthly service reports, providing insights for customers and management.
Tower Cleaning Technician
Kemira
Paramount, CA
10.2025 - 08.2026
- Drain and pressure wash cooling towers inside and out.
- Inspect tower for leaks or any issues that should be reported.
- Remove any debris and sludge from basin of tower.
- Followed mandatory safety protocols for confined space entry and fall protection.
Material Handler
Applied Medical
Lake Forest, California
11.2024 - 09.2025
- Managed flow of materials to automated injection molders.
- Kept a clean and organized warehouse.
- Troubleshoot machines.
- Use SAP software to keep track of material flow.
- Maintain a sanitary environment.
- Operated forklifts to transport materials within the facility.
- Loaded and unloaded products from delivery trucks efficiently.
Education
Tustin High School
Tustin, CASome College (No Degree) - Engineering
Irvine Valley College
Irvine, CASkills
- Water treatment
- Chemical testing
- System maintenance
- Maintenance procedures
- Report writing
- Customer service
- Problem solving
- Time management
- Effective communication
Timeline
Technical Service Representative
Kemira
08.2026 - Current
Tower Cleaning Technician
Kemira
10.2025 - 08.2026
Material Handler
Applied Medical
11.2024 - 09.2025
Tustin High School
Some College (No Degree) - Engineering
Irvine Valley College