Mechanic III - Maintenance

Gulf Stream Marine, Inc.; Brownsville (TX); On-site; USD 75,000 - 105,000; Full time

Job summary

Gulf Stream Marine, Inc. is seeking a Level IV maintenance lead with senior technical expertise to perform advanced troubleshooting, complex repairs, welding, crane maintenance, and mentoring junior mechanics.

You will lead a team, manage training programs, and ensure equipment remains aligned with OEM specifications and safety standards. Requires 3–5 years in crane/heavy equipment and TWIC or ability to obtain.

Qualifications

• High school diploma or equivalent required; technical certification preferred.
• 3–5 years of crane or heavy equipment maintenance experience.
• Advanced knowledge of electrical/electronic systems, PLC programming, and diagnostics.
• Ability to read and interpret schematics, service manuals, and technical drawings.
• Familiarity with mechanical, hydraulic, and pneumatic systems.
• Valid driver’s license and ability to meet company insurability standards.
• TWIC card required or ability to obtain.
• Ability to read, write, and speak English; bilingual (English/Spanish) preferred.

Responsibilities

• Fueling, inspections, preventive maintenance, and minor repairs.
• Complex mechanical repairs (hydraulic, pneumatic, brakes, hubs, drive/steer assemblies).
• Advanced troubleshooting across mechanical, electrical, electronic, PLC, hydraulic, and pneumatic systems.
• Use diagnostic tools and software (Cummins, Volvo, PLC systems).
• Leadership: run training classes and mentor junior mechanics; assign work orders; monitor progress.

Skills

Electrical/electronic systems

PLC programming

Diagnostics

Schematic reading

Crane maintenance

Team leadership

Bilingual English/Spanish

Education

High school diploma or equivalent

Tools

Cummins diagnostics

Volvo diagnostics

PLC diagnostic tools

Job description

Overview

The Level IV (E4) maintenance role represents senior technical expertise and leadership within the Maintenance job family. Responsibilities include advanced troubleshooting, complex repairs, welding and fabrication, crane maintenance, and mentoring junior mechanics. Mechanic Lead additionally manages team performance and training programs.

Qualifications

• High school diploma or equivalent required; technical certification preferred.
• Minimum 3–5 years of experience in crane or heavy equipment maintenance.
• Advanced knowledge of electrical/electronic systems, PLC programming, and diagnostics.
• Ability to read and interpret schematics, service manuals, and technical drawings.
• Familiarity with mechanical, hydraulic, and pneumatic systems.
• Valid driver’s license and ability to meet company insurability standards.
• TWIC card required or ability to obtain.
• Ability to read, write, and speak English; bilingual (English/Spanish) preferred.

Work Environment

• Ability to work at heights over 150’ and in awkward positions.
• Frequent climbing of crane ladders and staircases.
• Ability to lift tools and equipment to 60 lbs.
• Exposure to outdoor elements (heat, rain, cold) and hazardous environments.
• Must wear required PPE (hard hat, eye/ear protection, etc.).
• Ability to work extended hours, weekends, and holidays as needed.
• Occasional travel may be required (approximately 10%)

Responsibilities

• Fueling, inspections, preventive maintenance, and minor repairs.
• Complex mechanical repairs (hydraulic, pneumatic, brakes, hubs, drive/steer assemblies).
• Advanced troubleshooting across mechanical, electrical, electronic, PLC, hydraulic, and pneumatic systems.
• Use diagnostic tools and software (Cummins, Volvo, PLC systems).
• Advanced Troubleshooting & Technical Expertise:
  • Perform PLC programming and troubleshooting. Interpret electrical, hydraulic, and pneumatic schematics for complex repairs.
  • Diagnose root causes and recommend system improvements.
  • Restore equipment to OEM specifications and operational standards.
• Leadership (Mechanic Lead):
  • Run training classes and lead other mechanics in executing repairs.
  • Mentor junior mechanics and provide technical guidance.
  • Assign work orders and monitor progress for quality and efficiency.
  • Communicate effectively with dispatch and operations teams regarding equipment status.