John Guerra
Houston,TX
Summary
Skilled heavy equipment technician with strong background in diagnostics, repairs, and maintenance of various machinery. Known for effective team collaboration and adapting to changing needs while delivering reliable results. Expertise in hydraulic systems, diesel engines, and electrical troubleshooting. Dependable, solutions-focused, and driven by commitment to operational excellence.
Overview
12
12
years of professional experience
Work History
Heavy Equipment Mechanic
Houston Heavy Machinery
Houston, TX
06.2025 - Current
- Keeping track of job expenses for monthly reporting.
- Communicating with customer to schedule repairs. Drive to location to repair or provide maintenance as needed.
- Diagnose and repair of after-treatment systems
- Diagnosed and repaired a wide range of heavy machinery, ensuring operational efficiency.
- Conducted routine maintenance on engines, transmissions, and electrical systems to enhance reliability.
- Mentored junior mechanics on advanced repair techniques and safety protocols.
Heavy Equipment Mechanic / Foreman / Field Tech
Nueces Power Equipment
Houston, TX
04.2021 - 06.2025
- Ordering of all shop supplies needed for day to day operations.
- Calling and scheduling vendors for needed items.
- Receiving incoming rental machines and routing them to the correct locations.
- Diagnosing of machines using schematics, manufacturer specification and past knowledge to properly repair equipment in a timely and cost effective manner.
- Remove and replace components as needed based on previous diagnostics.
- Updating all notes and maintenance records per machine to help keep records in order.
Maintenance Mechanic/ CNC Programmer
N-Fab
Houston, TX
09.2018 - 04.2021
- Maintaining, repairing and replacement of conveyors systems, pumps, electric motors, VFD's, industrial sandblasters, CNC and PLC equipment.
- Running electrical wires and conduit as needed.
- Maintaining and creating work record logs and P.M. schedules.
- CNC duties include: Programming and Maintenance of Miller robotic welding cells and BLM mandrel tube bender.
- Research and development of needed tooling and fixtures.
- Build, and program plc's based on production needs.
- Troubleshoot and repair plc's systems using ladder and electrical schematics.
Rotating Equipment Mechanic / Welder
Dresser-Rand
Houston, TX
01.2014 - 02.2018
- Acted as a night shift lead-man.
- Disassembled and repair gas and steam turbines, centrifugal and reciprocating compressor based on company standards.
- Dimensional inspections of old and new parts, Including ERO's Run-outs. using micrometers, calipers, dial indicators and FARO arm.
- alignment of diaphragms, scraping of seals, blue check and lapping of bearings.
- Disassembly and assembly of various types of value racks, gear boxes and pumps.
- Installation and removal of couplings.
- Blading and Balancing of Gas and steam turbines. Shuck balance certified
Education
Associates of Applied Science - Welding Technology
Lone Star College
HoustonSkills
- Reading of hydraulic, electric and pneumatic schematics
- Heavy equipment diagnostics
- Hand and power tools
- Preventive Maintenance
- Safety processes
- Electrical work
- Troubleshooting skills
- Welding and fabrication
- Diesel engine repair
- Electrical troubleshooting
- Effective communication skills
Timeline
Heavy Equipment Mechanic
Houston Heavy Machinery
06.2025 - Current
Heavy Equipment Mechanic / Foreman / Field Tech
Nueces Power Equipment
04.2021 - 06.2025
Maintenance Mechanic/ CNC Programmer
N-Fab
09.2018 - 04.2021
Rotating Equipment Mechanic / Welder
Dresser-Rand
01.2014 - 02.2018
Associates of Applied Science - Welding Technology
Lone Star College