Professional Summary
Overview
Work History
Education
Skills
Timeline

Melvin Johnson

Thomas Bui & Sons
New Boston,TX
34
years of professional experience

Experienced technical professional with expertise in electrical troubleshooting, control systems, and quality control. Known for reading schematics, solving equipment issues fast, and supporting reliable system performance.

Work History

Data Controls Technician / Regional Sales Manager

2 Years 1 Month
Thomas Bui & Sons | 10.2022 - 11.2024
  • Troubleshot control panels, sensors, and wiring to restore equipment performance.
  • Performed preventive maintenance on automated systems to reduce downtime.
  • Read electrical schematics to diagnose faults and verify proper connections.
  • Calibrated controls and instrumentation for consistent system operation.
  • Coordinated with maintenance teams to resolve equipment issues efficiently.
  • Skilled in troubleshooting control system malfunctions and creating plans for repair.
  • Collaborated with engineers to develop, install, and troubleshoot custom control systems for specific applications.
  • Organized promotional events and interacted with community to increase sales volume.

Project Manager

3 Years 2 Months
Reliance Mechanical Contractors | 01.2019 - 03.2022
  • Directed project schedules, budgets, and subcontractor coordination for mechanical construction deliverables.
  • Managed RFIs, submittals, and change orders to keep documentation accurate and approvals moving.
  • Coordinated field crews, vendors, and supervisors to align daily work with project milestones.
  • Reviewed drawings and specifications to identify scope conflicts and support constructability decisions.
  • Monitored project progress and resolved issues to maintain quality, safety, and schedule compliance.
  • Tracked procurement status and long-lead materials to support uninterrupted installation timelines.
  • Mentored junior team members in project management best practices to enhance their skills and contribute to better overall performance.
  • Promoted innovation within project teams, encouraging exploration of new tools and methodologies to enhance project outcomes.

HVAC Technician

5 Years 3 Months
Thomas Bui & Sons | 02.2014 - 05.2019
  • Diagnosed HVAC system faults using gauges, meters, and diagnostic tools.
  • Installed heating, cooling, and ventilation equipment to manufacturer specifications.
  • Performed preventive maintenance on compressors, motors, thermostats, and air handlers.
  • Repaired electrical controls, refrigerant leaks, and airflow issues.
  • Inspected ductwork, condensate lines, and system components for efficiency and safety.
  • Documented service work, parts usage, and maintenance findings accurately.
  • Calibrated thermostats and control systems for accurate temperature regulation.
  • Performed troubleshooting on HVAC systems to determine root cause of issues.
  • Mentored junior technicians on troubleshooting, safety procedures, and repair techniques.
  • Installed new heating, ventilation, and air conditioning systems in residential and commercial buildings with precision and attention to detail.
  • Worked overtime, holidays and weekends to accommodate company needs.
  • Recommended appropriate upgrades to clients'' existing systems, resulting in increased energy efficiency and cost savings.
  • Read blueprints, wiring diagrams, piping schemes and engineering specifications to diagnose and repair units.
  • Kept accurate records of time and materials used for each job to compile into service reports.
  • Maintained boilers, hot water systems, gas heating equipment and food service equipment.
  • Optimized performance by balancing systems and calibrating controls.

Seabee

20 Years 5 Months
United States Navy RETIRED | 08.1990 - 01.2011

Equipment operator with Navy Mobile Construction Battalion.

Military construction of bridges, airfields, bunkers, logistic bases, and housing towers in combat zones and peacetime.

Combat and self-defense, small-unit tactics and land navigation to protect worksites in hostile environments.

Disaster Recovery after natural disasters such as hurricanes and earthquakes to clear debris, restore power, and provide security patrols

Construct schools, hospitals, and community buildings to improve foreign relations during international deployments

Specialized underwater construction teams

Education

Associate of Applied Science - Criminal Justice

University of Southern Mississippi | Gulfport, MS

Skills

Sensor technology
Electrical troubleshooting
Project management
Quality control
Project team supervision
Equipment purchasing specifications
Technical drawings and schematics
Control system design

Timeline

Data Controls Technician / Regional Sales Manager

Thomas Bui & Sons
10.2022 - 11.2024Read More

Project Manager

Reliance Mechanical Contractors
01.2019 - 03.2022Read More

HVAC Technician

Thomas Bui & Sons
02.2014 - 05.2019Read More

Seabee

United States Navy RETIRED
08.1990 - 01.2011Read More

University of Southern Mississippi

Associate of Applied Science from Criminal Justice
Read More
Melvin Johnson