Jobs › Oshkosh Corporation

Sr Field Service Technician - GSE: Chicago

Oshkosh Corporation · IL · Remote available · $73,200–$117,800 a year · Full time

Posted Aug 31, 2026 · We last checked this listing on Oct 6, 2026

Apply at Oshkosh Corporation

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about your GSE experience. What equipment have you worked on, like tugs, belt loaders, ground power units or air carts?

What they are checking: Whether they have the previous GSE experience the posting requires to be considered.

Tell me about a time you worked alone at a customer site and hit a problem you'd never seen.

What they are checking: Whether they can work independently and know when and how to call for support.

How do you document your work for the customer and the company?

What they are checking: Whether they write clear service reports that support billing, warranty and future repairs.

As a senior tech, how do you help less experienced technicians?

What they are checking: Whether they share knowledge and act as a resource, which senior roles are expected to do.

What would you do

An airline customer needs equipment back for a flight push in an hour, and the repair will take longer. What do you do?

What they are checking: Whether they communicate honestly, look for a safe workaround and keep the customer's trust.

You'll mostly be in the Chicago area but may travel to other airports. How do you handle being on the road?

What they are checking: Whether they are comfortable with travel and stay organized away from home.

About the work

Walk me through diagnosing an electric tug that won't move.

What they are checking: Whether they can work through batteries, controllers, motors and safety interlocks in a logical order.

How do you troubleshoot a hydraulic problem on equipment out on the ramp?

What they are checking: Whether they can find hydraulic faults with limited tools and time at a customer site.

What experience do you have with diagnostic software or programming controllers on equipment?

What they are checking: Whether they can handle the onsite programming and electronic diagnostics the role calls for.

How do you stay safe working around aircraft, jet blast and moving vehicles on the ramp?

What they are checking: Whether they respect airport ramp safety rules, which are strict and unforgiving.

How do you handle diesel and electric equipment differently when you're diagnosing a problem?

What they are checking: Whether they are skilled across both power types the posting names.

Practice this interview out loud.

Offer builds a real interview for this exact role at Oshkosh Corporation from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Oshkosh Corporation.

About Oshkosh AeroTech, an Oshkosh company Oshkosh AeroTech is a leading provider of aviation ground support products, gate equipment and airport services to commercial airlines, airports, air-freight carriers, ground handling and military customers. Oshkosh AeroTech offers products that make a difference in people’s lives by supporting those in our communities who do some of the toughest work. They own many of the most trusted brands in the air transportation industry, including LEKTRO®, JetAire®, JetPower®, AmpTekÔ, Jetway®, and more. The Senior Field Service Technician will mainly be dispatched for our Chicago based customers and will mostly stay within the Illinois area but can be asked to travel as needed to other airports within the continental United States. The senior level GSE Technician will perform diagnostics, repairs, upgrades, and maintenance on a wide variety of ground support equipment (GSE). This includes servicing diesel and electric-powered vehicles, hydraulic systems, and electrical control systems. This position requires strong technical knowledge in electrical, mechanical, and hydraulic systems for onsite equipment diagnostics and programming. **Must have previous GSE experience to be considered only. We pay a per diem every night you spend away from home when traveling and all your travel expenses. This is hourly, so we pay overtime as well. YOUR IMPACT • Work onsite mainly at Chicago International Airport and provide hands-on service for the following types of equipment: • Aircraft tow tractors • Container loaders • Aircraft deicers • Baggage and cargo transport vehicles • Other airport GSE with ICE or EV platforms • Diagnose, repair, and perform routine maintenance on: • Hydraulic systems (including pumps, motors, actuators, and valves) • Electrical systems (wiring, fuses, relays, sensors, and control modules) • Mechanical systems (suspension, steering, drive assemblies) • Interface with PLC systems to upload/download programs, troubleshoot logic, and perform control system adjustments • Collaborate with dealer technicians via phone/email or on-site for troubleshooting assistance • Review technical documentation, manuals, and schematics to ensure accurate service procedures • Maintain detailed documentation through work order systems; ensure issue resolution and service reporting • Participate in OEM testing and equipment upgrades, as needed • Provide end-user product orientation and safe operating procedures at customer sites • Mentor or train junior or less-experienced technicians in-field when required • Other projects and responsibilities may be added at the company’s discretion BASIC QUALIFICATIONS • High School Diploma or GED and five (5) or more years of relevant experience in machine assembly, light fabrication; or previous relevant contracting experience with Oshkosh Corporation; or an equivalent combination of education and experience that demonstrates the ability to perform the essential functions of the role . Proficient in: • • Electrical diagnostics and repair • Mechanical systems and component-level service • Hydraulic diagnostics and repair • Proficiency with Microsoft Office tools • Ability to work independently with strong problem-solving skills • Strong verbal and written communication skills • Must be able to obtain a passport if necessary • Must be able to work productively and cohesively in a diverse and multicultural environment • Travel outside of ORD is between 40-50% of the time. #LI-TM1 Pay Range: $73,200.00 - $117,800.00 The above pay range reflects the minimum and maximum target pay for the position across all U.S. locations. Within this range, individual pay is determined by various factors, including the scope and responsibilities of the role, the candidate's experience, education and skills, as well as the equity of pay among team members in similar positions. Beyond offering a competitive total rewards package, we prioritize a people-first culture and offer various opportunities to support team member growth and success. Oshkosh is committed to working with and offering reasonable accommodation to job applicants with disabilities. If you need assistance or an accommodation due to disability for any part of the employment process, please contact us at corporatetalentacquisition@oshkoshcorp.com. Oshkosh Corporation is a merit-based Equal Opportunity Employer. Job opportunities are open for application to all qualified individuals and selection decisions are made without regard to race, color, religion, sex, national origin, age, disability, veteran status, or other protected characteristic. To the extent that information is provided or collected regarding categories as provided by law it will in no way affect the decision regarding an employment application. Oshkosh Corporation will not discharge or in any manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with Oshkosh Corporation's legal duty to furnish information. Certain positions with Oshkosh Corporation require access to controlled goods and technologies subject to the International Traffic in Arms Regulations or the Export Administration Regulations. Applicants for these positions may need to be "U.S. Persons," as defined in these regulations. Generally, a "U.S. Person" is a U.S. citizen, lawful permanent resident, or an individual who has been admitted as a refugee or granted asylum.

Apply at Oshkosh Corporation