Field Service Technician

St. Louis, MO | Full-Time

We’re hiring a Field Service Technician to join our Service team in St. Louis. You’ll manage technical support across the West/Northwest geographical area of the St. Louis metro. In this role, you will provide preventive and proactive service as the first point of support, ensuring customers receive the exceptional experience they expect from SumnerOne.

This role combines technical troubleshooting, customer relationship building, and equipment expertise. You’ll work independently in the field, travel up to 100 miles per day, and stay connected with dispatch and your team throughout each day.

Core Responsibilities:

• Manage technical support for accounts within your service area


• Perform preventative maintenance and pro-active service calls


• Troubleshoot equipment issues and prepare repair estimates


• Maintain organized car stock, service manuals, and service bulletins


• Keep all service information current on laptop and dispatch system


• Promote and explain service agreements to customers


• Communicate customer issues and equipment requirements to Field Service Management and Sales


• Complete paperwork, warranty processing, and parts tracking in a timely manner


• Perform ongoing product training and complete scheduled courses

Day-to-Day Expectations:

• Carry tools and equipment up to 50 lbs consistently, rotate equipment up to 100 lbs


• Drive 100 miles daily within your service area


• Kneel and squat for extended periods during service calls


• Maintain professional appearance and vehicle cleanliness


• Ask customers if they need additional help before leaving


• Stay current on SumnerOne products and services


• Suggest product and service improvements to customers


• Contribute ideas to the service team on how we can improve operations

You have solid mechanical and troubleshooting skills with a problem-solving mindset. You may be coming in with field service experience, or you may be entry-level with strong technical aptitude and eagerness to learn. Either way, you’re reliable, organized, and ready to build expertise with a team that invests in your growth.

Core Requirements:

• Authorized to work in the U.S.; able to pass pre-employment and drug screenings


• Valid driver’s license and clean driving record


• Ability to obtain insurance as a company driver


• High school diploma (Associate’s or Bachelor’s degree preferred)


• Strong mechanical and electrical aptitude


• Problem-solving mindset—you think logically and don’t give up easily


• PC and networking knowledge; comfortable with Windows, Mac, and common office software (Excel, Word, Outlook, etc.)


• Reliable transportation and ability to drive 100 miles daily

Technical Competencies:

• Troubleshoot and diagnose electronic/mechanical equipment problems


• Understand network connectivity and how it relates to product performance


• Learn and retain technical product knowledge quickly


• Work with hand tools and diagnostic equipment

Professional Competencies:

• Strong communication skills (written and verbal)


• Customer-focused approach; you ask questions and listen before jumping to solutions


• Organized and detail-oriented; you track parts, paperwork, and schedules


• Dependable, disciplined, and accountable for your time and quality


• Adaptable; you roll with changes and different customer personalities


• Team player who communicates daily with dispatch and colleagues


• Professional appearance and demeanor; you represent the company well

Nice-to-Have:

• Previous field service or customer service experience


• Familiarity with office equipment or related technology


• Certification in relevant technical areas

WHY SUMNERONE

At SumnerOne, we believe our best solutions start with listening. We call this Hear to Serve — and it applies as much to how we treat each other as it does to how we serve our customers. When you join this team, you're joining a company that is actively investing in a culture where every voice is heard, every idea matters, and every person is supported.

• Structured training and ongoing skill development


• Flexibility in your field schedule with support from dispatch


• A clear path to growth (specialist roles, territory expansion, or leadership)


• Regular communication with your team and manager


• Vehicle provided; you manage your route


• Work-Life Balance: Family-owned and family-first — Monday through Friday, no weekends 


• Benefits from Day One: Medical, dental, vision, life, and disability coverage 


• Paid Time Off: Paid vacation, holidays, and personal days


• Financial Future: 401(k) and profit-sharing opportunities 


• Room to Grow: Many of our senior team members started exactly where you are 


• A Culture That Listens: Through our Hear to Serve initiative, we gather feedback, close the loop, and continuously improve — because a great workplace doesn't happen by accident