Senior GSE Technician — Advanced Diagnostics & Mentoring

Unifi; Chicago (IL); On-site; USD 33,000 - 50,000; Full time

Benefits offered by this job

Flight privileges

Paid time off

Medical insurance

401k

Discounts and wellness programs

Job summary

Unifi in Chicago, IL is seeking a GSE Technician to perform advanced diagnostics, troubleshooting, and repairs on Ground Support Equipment. This non-exempt, full-time role requires interpreting wiring diagrams and hydraulic schematics and resolving high-impact issues with minimal supervision.

Technicians III serve as the technical leaders within the shop, supporting the development of Technician I and II employees, contributing to reliability improvements, and ensuring equipment is safe,

Qualifications

• High School diploma or equivalent required.
• 2–5+ years of automotive, diesel, heavy equipment, or GSE maintenance preferred.
• Ability to read and interpret wiring diagrams, schematics, and OEM manuals.
• Strong proficiency with diagnostic tools including multi-meters, scan tools, pressure gauges, and electrical testing equipment.
• Must be able to pass required background checks and drug screening.

Responsibilities

• Perform advanced troubleshooting and diagnostics on mechanical, electrical, hydraulic, and electronic systems across all GSE types.
• Complete complex repairs including engine work, hydraulic system rebuilds, electrical harness repairs, brake system overhauls, and major component replacements.
• Interpret and apply OEM manuals, wiring diagrams, hydraulic schematics, and diagnostic flowcharts.
• Perform root cause analysis (RCA) on repeat or high impact failures and recommend corrective actions to improve reliability.
• Mentor and support Technician I and II employees by demonstrating proper repair techniques, safety practices, and documentation standards.
• Perform advanced electrical testing including voltage drop analysis, continuity testing, load testing, and charging system diagnostics.
• Conduct advanced hydraulic diagnostics including pressure testing, valve troubleshooting, and cylinder performance evaluation.
• Document all work performed using the company’s CMMS (AssetWorks) following CCC standards and reliability focused documentation practices.

Skills

Diagnostics

Electrical testing

Hydraulic systems

Wiring diagrams

Mentoring

Education

High School diploma or equivalent

Tools

Multi-meters

Scan tools

Pressure gauges

Electrical testing equipment

Job description

Unifi in Chicago, IL is seeking a GSE Technician to perform advanced diagnostics, troubleshooting, and repairs on Ground Support Equipment. This non-exempt, full-time role requires interpreting wiring diagrams and hydraulic schematics and resolving high-impact issues with minimal supervision.

Technicians III serve as the technical leaders within the shop, supporting the development of Technician I and II employees, contributing to reliability improvements, and ensuring equipment is safe,