Service Technician, Hybrid Mobile & Shop

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At On Scene, LLC, we put first responders first. Since our founding in 2018, we have been dedicated to transforming the Fire and EMS industry by shifting the standard care for apparatus from a break/fix or reactive mindset to a proactive, predictive service model. As part of our team, you will be delivering the reliable services, diagnostic expertise and resourceful communication necessary to address the needs of departments across Connecticut, Rhode Island and Massachusetts.

Operational readiness can be a matter of life and death, yet "out-of-service" time remains a critical challenge for emergency fleets. On Scene’s approach of bringing the shop to the customer offers convenience and minimizes apparatus OOS time for the responders who rely on the critical apparatus to protect their communities. Our preventive maintenance structure is rooted in DOT, NFPA 1910 and manufacturer requirements to ensure each customer's apparatus is properly maintained. Our service center in Smithfield, RI coupled with our apparatus manufacturer and equipment partnerships enable us to redefine apparatus care with solutions backed by technical excellence. 

Join us and be part of our mission to support those who protect our communities.

• Perform comprehensive preventative maintenance and annual inspections in strict accordance with NFPA standard, DOT requirements, and manufacturer requirements
• Perform accurate troubleshooting and diagnostics of specialized fire and EMS apparatus systems the first time, enabling accurate and timely repair
• Execute repairs on heavy-duty chassis, diesel engines, transmissions, brake systems, and suspension components
• Execute repairs on 12V and 120/240V electrical systems, including lighting, sirens, and advanced multiplexing control systems
• Operate a company service truck to perform on-site repairs and maintenance at fire departments and EMS agencies, representing the company with professionalism
• Maintain accurate, digital service records, parts requests, and inspection reports to ensure full compliance and customer transparency
• Communicate effectively with internal and external stakeholders in a positive demeanor and get-it-done attitude
• Offer feedback and suggestions that enable our team to grow and improve future outcomes with customers
• Always operate in a manner that ensures the safety of yourself and others
• Maintain a clean workplace whether at the shop or on-site
• Perform upkeep on company equipment and escalate issues to ensure operational status

• Minimum of 3 years of experience in heavy-duty truck repair, diesel mechanics, or emergency vehicle maintenance
• Proficient use of web browser-based service portals, Microsoft Teams and Microsoft Outlook
• Strong understanding of hydraulic systems, 12V electrical systems, and diesel engine diagnostics
• Valid driver’s license with DOT medical card
• Possession of a comprehensive set of personal hand tools and air tools suitable for heavy-truck repair
• Must be able to lift up to 75 lbs, climb ladders, and work in tight spaces or outdoor environments
• Ability to work four 10-hour shifts per week (Monday–Thursday) 

• Current EVT (Emergency Vehicle Technician) certifications (e.g., F1–F4) or ASE Heavy Truck certifications (T-Series)
• Valid Class A or B Commercial Driver’s License (CDL)
• Prior experience specifically with fire pump overhaul (Hale, Waterous, or Darley) 
• In-depth knowledge of NFPA 1910 standards regarding the inspection, maintenance, and testing of fire apparatus
• Basic proficiency in MIG/TIG welding or aluminum fabrication