Diesel Fleet Maintenance Technician

Diesel Fleet Maintenance TechnicianAs a Diesel Fleet Maintenance Technician, you will play a critical role in ensuring the reliability, safety, and operational readiness of Booster's fleet assets. This position is responsible for diagnosing, repairing, and performing preventative maintenance on diesel-powered fleet vehicles, tanker systems, fueling equipment, and related operational assets.This role operates in a fast-paced environment where equipment uptime is mission-critical to daily operations and customer service execution. The ideal candidate is a hands-on technician who takes pride in high-quality workmanship, responds with urgency, and can independently troubleshoot and resolve issues with minimal supervision.Job ResponsibilitiesFleet Reliability & Preventative MaintenanceDiagnose mechanical, electrical, hydraulic, and operational issues quickly and accurately.Perform repairs efficiently while maintaining high-quality workmanship and safety standards.Utilize diagnostic software, tools, and testing equipment to troubleshoot vehicle and equipment issues.Prioritize repairs based on operational urgency and fleet availability needs.Return assets to service as quickly and safely as possible.Operational SupportRespond promptly to driver-reported defects, maintenance requests, and operational concerns within a 24-hour period.Support roadside troubleshooting and emergency repair situations when required.Participate in on-call rotation and respond to after-hours maintenance issues as needed.Communicate repair status, timelines, and operational impacts clearly to leadership and drivers.Compliance & SafetyEnsure all repairs and maintenance activities comply with company policies, DOT regulations, environmental requirements, and safety standards.Maintain accurate maintenance records, work orders, inspection documentation, and repair logs.Support fleet audit readiness and compliance initiatives.Maintain clean, organized, and safe work environments in shop and field settings.Cross-Market & Field SupportTravel to other Booster markets as needed to support fleet maintenance operations, launch activities, or major repair initiatives.Assist with field maintenance support during operational surges or high-priority business needs.Work closely with Fleet Operations, Drivers, and Operational Leadership to ensure vehicles are maintained safely, efficiently, and in compliance with company and regulatory standards.Collaborate with Operations and Fleet leadership to improve maintenance processes and fleet reliability standards.RequirementsRequired QualificationsMinimum 3+ years of diesel technician or fleet maintenance experience.Strong working knowledge of diesel engines, tanker systems, preventative maintenance programs, and fleet repair operations.Ability to diagnose and troubleshoot mechanical and electrical issues independently.Must possess personal tools and equipment necessary to perform job duties.Self-starter capable of working effectively with limited direct supervision.Strong work ethic, accountability, and sense of urgency.Comfortable using smartphones, email, digital work orders, and maintenance systems.Valid driver's license with acceptable driving record.Preferred QualificationsTanker, fuel delivery, or heavy fleet maintenance experience strongly preferred.ASE certifications and/or AC certifications preferred.Experience with DOT inspections and regulatory compliance.CDL license or experience working around CDL fleet operations is a plus.Familiarity with hydraulic systems, pumps, fueling systems, and PTO systems preferred.Experience supporting multi-site or field-based fleet operations environments.Key Traits for SuccessHigh urgency mindset — understands that fleet uptime directly impacts operational performance and customer service.Mechanically strong — capable of independently diagnosing and solving complex equipment issues.Reliable and accountable — follows through on repairs and communicates proactively.Safety-focused — consistently prioritizes safe maintenance practices and regulatory compliance.Team-oriented — works collaboratively with drivers, operations teams, and fellow technicians.Adaptable — able to shift priorities quickly in a fast-paced operational environment.Benefits:Medical, Dental, Vision, Supplemental Life InsuranceHealth Savings AccountFlexible Spending AccountsAncillary Coverage (Critical Illness, Hospital Indemnity, Accident)Company Paid Short Term Disability, Long Term Disability, Basic Life Insurance401(k) PlanStock Options at a fast-growing startup!What makes Booster different?Employee Discounted Fuel!Vacation Time, Sick Time, and Floating HolidaysCommitted to Equity and InclusionMentorship and learning opportunities are availableCareer progression for growth and advancementEmployee Referral ProgramIndividuals seeking employment at Booster are considered without regards to race, religion, color, national origin, ancestry, sex, gender, gender identity, gender expression, sexual orientation, marital status, age, physical or mental disability or medical condition (except where physical fitness is a valid occupational qualification), genetic information, veteran status, or any other consideration made unlawful by federal, state or local laws.Booster does not discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant.Disclaimer: The above statements are intended to describe the general nature and level of work being performed by associates assigned to this classification. They are not to be construed as an exhaustive list of all responsibilities, duties, and skills required of personnel so classified.All personnel may be required to perform duties outside of their normal responsibilities from time to time, as needed. Booster doesn't accept unsolicited agency resumes and won't pay fees to any third-party agency or firm that doesn't have a signed agreement with Booster#IND123