First Response Rail Service, Inc. is seeking a dependable and safety-focused Mobile Railcar Repair Technician who will travel to customer locations in a company-owned Freightliner service truck to inspect, maintain, and repair railcars. This position combines hands-on mechanical and welding work with the safe operation of a commercial vehicle. Essential Duties and Responsibilities Safely operate a Freightliner service truck to and from customer sites, rail yards, and repair locations. Perform mobile inspections, maintenance, and repairs on freight railcars. Diagnose mechanical problems and determine appropriate repairs. Repair or replace railcar components, including brake systems, couplers, draft systems, doors, handrails, safety appliances, and related equipment. Perform welding, cutting, grinding, fabrication, and mechanical work as assigned. Load, secure, transport, and maintain tools, equipment, materials, and repair parts. Complete required pre-trip and post-trip vehicle inspections. Maintain accurate driver logs, inspection forms, repair records, and service documentation. Follow all DOT, FRA, OSHA, customer-site, and company safety requirements. Use proper personal protective equipment and maintain a clean, organized service truck and work area. Respond to emergency or after-hours mobile repair calls when required. Communicate professionally with customers, supervisors, dispatchers, and other employees. Perform other railcar repair and operational duties as assigned. Qualifications Valid Class B Commercial Driver's License (CDL) with an acceptable driving record. Must meet all applicable DOT medical and commercial-driving requirements. Previous railcar repair, diesel, heavy-equipment, industrial maintenance, welding, or mechanical experience preferred. Ability to safely operate a Freightliner service truck and related equipment. Welding and fabrication experience preferred. Ability to read work orders, inspection reports, safety procedures, and basic technical documents. Must be dependable, safety-conscious, and able to work independently in the field. Must be willing to travel and work outdoors in varying weather conditions. Ability to pass all required background checks, drug screenings, and customer-site requirements. Physical Requirements Regularly stand, walk, climb, bend, kneel, crouch, reach, push, and pull. Frequently lift and carry tools, parts, and materials weighing up to 50 pounds; heavier lifting may require assistance. Safely enter and exit commercial vehicles and access rail equipment. Work around moving equipment, uneven surfaces, loud noise, welding fumes, and changing weather conditions. Wear required PPE, including steel-toe boots, safety glasses, gloves, hearing protection, high-visibility clothing, and welding protection.