Nusantara Energy Services is a leading company in Indonesia, North Sumatra, Pematangsiantar, specializing in managing energy and process facility operations and maintenance. Our dedicated team oversees shutdown planning, construction work, inspections, safety supervision, and ensures adherence to strict safety protocols and meticulous technical documentation. As a Senior Reliability Engineer at Nusantara Energy Services, you will be responsible for developing preventive and corrective maintenance plans, creating work orders with estimated durations, analyzing equipment failure history for improvement proposals, coordinating spare parts requirements with the warehouse, overseeing maintenance work execution, updating CMMS post-job completion, preparing equipment performance reports, and supporting reliability enhancement programs. The ideal candidate for this position should hold a D3/S1 degree in Mechanical/Electrical Engineering with 2-4 years of experience in industrial facility maintenance. Proficiency in CMMS systems and job planning is essential. Strong analytical skills for interpreting equipment manuals and failure data are required. The ability to coordinate effectively with technicians, willingness to work in the field when necessary, and proficiency in office applications are also key qualifications. If you possess expertise in maintenance planning, failure analysis, CMMS systems management, spare parts management, and technical reporting while seeking an opportunity to contribute to the energy industry's reliability improvement initiatives—Nusantara Energy Services invites you to apply for the Senior Reliability Engineer role. This position is ideal for mid-career professionals looking to make a significant impact within a dynamic industry environment.