ManTech seeks a motivated, career and customer-oriented **Senior Field Service Representative** to join our vehicle sustainment team in **Sophia, Bulgaria.** The selected candidate will provide maintenance and logistics support to multiple families of vehicles globally on the Allied Logistics Engineering Capabilities Sustainment (ALECS) program. **Responsibilities include but are not limited to:** + Plans, directs, coordinates and manages the maintenance operations for assigned Technical Direction Letter organizations. + Maintenance support includes operations, system troubleshooting, engineering, design, installation, analysis, maintenance and repair of U.S. systems and subsystems to component level. + Effectively applies industry or military standard troubleshooting procedures to localize and isolate faulty system components. + Performs other related duties as assigned. **Minimum Qualifications** : + Selected candidates must be a US Citizen with a minimum of 12 years of experience. + Must have experience on HEMTT variants to include M1120A4 LHS, M984A4 Wrecker, and M983A4 LET; must be H8 Wheeled Vehicle Recovery Specialist certified + Experience applying industry and/or military standard troubleshooting procedures to isolate faulty system components. + Experience in technical support of complex U.S. military ground systems; experience with office productivity tools such as Microsoft Office Suite. + Experience with a variety of hand tools, diagnostic tools, power tools, multi-meters + Ability to successfully pass a Pre-Employment Drug Screening and meet the government deployment physical requirements if needed. + Must possess a Valid Driver’s License for the location in which the work will be performed and have a High School Diploma or GED. **Physical Requirements:** + Must be able to balance, bend, carry, crouch, stretch and kneel. + Must be able to push, pull, and reach + Must be able to work in high noise areas + Must be able to lift 50lbs and small parts + Must be able to work with computers and CRTs, and type on a computer keyboard ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. If you are a qualified individual with a disability and require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please email us at careers@mantech.com and provide your name and contact information.