Sergio Barrera
Mission,TX
Summary
Hardworking Electrician driven to complete projects with focus on safety, cost-efficiency and client satisfaction. Versed in residential and commercial installations and repairs. Offering 10 years of industry expertise, including building codes, blueprint assessments and new construction protocols.
Overview
2026
2026
years of professional experience
Work History
Journeyman Electrician
Electrical & Instrumentation Unlimited
Baton Rouge, Louisiana
05.2024 - 11.2024
- Performed maintenance on existing electrical wiring and equipment.
- Planned new installations by studying drawings, technical manuals, and other documents.
- Used hand tools such as drills, saws, wire strippers, and crimpers to complete tasks.
- Read blueprints or schematic diagrams to determine the layout of a particular job site.
- Conducted tests on electrical components, circuits, and systems to ensure compliance with safety standards.
- Connected wires to circuit breakers, transformers or other components to form circuits.
- Tested continuity of circuits using testing devices such as ohmmeters, voltmeters, ammeters.
- Performed rough-in, termination, and underground work.
- Installed conduit systems, various lighting systems, and basic control systems.
- Installed motor feeders and made standard motor connections.
Electrician
Nyati services
Kennndy, TX
05.2021 - 05.2024
- Performed electrical installations, maintenance and repairs of electrical systems, wiring, fixtures and components.
- Tested continuity of circuits with testing devices such as ohmmeters, voltmeters and ammeters.
- Installed conduit for new wiring systems in commercial buildings.
- Provided technical support on various types of motor control circuits including VFDs.
- Installed conduit, wire and motor controls.
- Connected wires to circuit breakers and transformers.
- Traced and diagnosed electrical malfunctions using hand tools and test equipment.
Electrician
MMR Constructors
Kennndy, TX
02.2018 - 04.2021
- Performed electrical installations, maintenance and repairs of electrical systems, wiring, fixtures and components.
- Tested continuity of circuits with testing devices such as ohmmeters, voltmeters and ammeters.
- Installed conduit for new wiring systems in commercial buildings.
- Connected wires to circuit breakers, transformers or other components.
- Constructed control panels from blueprints or schematic drawings.
- Identified problems with electrical systems by observing operation, listening for problems and using test equipment such as multi-meters.
- Provided technical support on various types of motor control circuits including VFDs.
- Installed conduit, wire and motor controls.
- Connected wires to circuit breakers and transformers.
Electrician
CEC
Pecos, TX
08.2017 - 01.2018
- Performed electrical installations, maintenance and repairs of electrical systems, wiring, fixtures and components.
- Tested continuity of circuits with testing devices such as ohmmeters, voltmeters and ammeters.
- Installed conduit for new wiring systems in commercial buildings.
- Connected wires to circuit breakers, transformers or other components.
- Constructed control panels from blueprints or schematic drawings.
- Worked on high voltage switchgear projects involving transformer hookups and terminations up to 15kv level.
- Provided technical support on various types of motor control circuits including VFDs.
- Installed conduit, wire and motor controls.
Electrical Helper
Saulsbury Industries
Baytown, TX
04.2016 - 05.2017
- Assisted Electricians in installing and connecting wires, outlets, and fixtures.
- Tested electrical systems to ensure proper functioning.
- Performed maintenance on wiring systems and equipment.
- Installed conduit pipes for new wiring systems.
- Ensured that all work was up to code standards set by local authorities.
- Operated hand tools such as drillers, grinders, saws, crimpers.
- Cleaned work areas after completing job duties to maintain cleanliness levels.
Electrician Helper
CB&I
, TX
02.2013 - 03.2016
- Assisted electricians in installing, maintaining, and repairing electrical systems and components.
- Conducted basic tests on electrical equipment to ensure proper functioning.
- Installed outlets, switches, and circuit breakers according to code specifications.
- Used hand tools such as screwdrivers and pliers to install wiring or conduit.
- Identified faulty wiring connections and replaced them with new ones.
- Set up ladders and scaffolding when needed to access hard-to-reach places.
- Organized materials for jobsites and transported them to work areas.
- Pulled wires through conduits or other passageways using a wire puller tool.
- Installed junction boxes according to local building codes for support purposes.
- Cleaned up job sites after completing assigned tasks by disposing off debris.
- Assisted electricians in testing existing electrical systems for compliance.
Electrician
Nyati
Houston
01.2025 - 03.2025
- Connected wires to circuit breakers, transformers, or other components.
- Utilized various tools for troubleshooting and installation tasks effectively.
- Connected wires to circuit breakers and transformers.
- Ensured that all work was completed in accordance with applicable codes.
- Calibrated instruments to ensure accuracy of readings.
Journeyman Electrician
E
Electrician commissioning
Mako
- Collaborated with contractors to ensure project specifications were met.
- Ensured that all work was completed in accordance with applicable codes.
- Diagnosed issues in electrical circuits and equipment and took proper corrective or preventive measures for repair.
- Interpreted schematics, blueprints and diagrams to complete projects on time.
Education
Instrument Tech NCCER
CAL INDUSTRIAL
Corpus Christi, TX05-2024
High School Diploma -
Mid Valley
McAllen, TXSkills
- System Testing
- Electrical Equipment Maintenance
- Sub-panel installation
- Electrical Repairs
- Diagnostic Testing
- Fixture Installation
- Calibrating instruments
Timeline
Electrician
Nyati
01.2025 - 03.2025
Journeyman Electrician
Electrical & Instrumentation Unlimited
05.2024 - 11.2024
Electrician
Nyati services
05.2021 - 05.2024
Electrician
MMR Constructors
02.2018 - 04.2021
Electrician
CEC
08.2017 - 01.2018
Electrical Helper
Saulsbury Industries
04.2016 - 05.2017
Electrician Helper
CB&I
02.2013 - 03.2016
Instrument Tech NCCER
CAL INDUSTRIAL
High School Diploma -
Mid Valley
Journeyman Electrician
E
Electrician commissioning
Mako