Job Summary: Maintenance Assistant to perform preventive maintenance activities on yellow-line and white-line equipment, with a focus on safety and excellence. Key Highlights: 1. Experience in preventive maintenance of heavy machinery 2. Focus on safety, integrity, and excellence 3. Work environment that encourages simplicity and humility We are seeking a MAINTENANCE ASSISTANT to perform maintenance and preventive maintenance activities on yellow-line and white-line equipment. At Armac, we strive daily to build lasting relationships with our employees and partners, based on trust, mutual respect, and shared commitment. If you take pride in serving, demonstrate ownership mindset, have the courage to make things happen, and are interested in joining an environment where safety comes first, simplicity and humility are encouraged in employees’ actions, and integrity, excellence, and ethics are non-negotiable, then your place is here at Armac! **Responsibilities and Duties** * Perform preventive maintenance on heavy machinery, including yellow-line equipment, white-line equipment, forklifts, and aerial work platforms, in accordance with manufacturer manuals and established deadlines; * Diagnose mechanical, hydraulic, and electrical failures in heavy machinery using appropriate diagnostic tools; * Carry out complex repairs on engines, transmissions, hydraulic systems, electrical systems, and other components of heavy machinery; * Replace damaged or worn parts using appropriate tools and procedures; * Adjust and calibrate heavy machinery systems to ensure proper operation; * Monitor heavy machinery performance and identify potential issues; * Instruct machine operators on operation and maintenance procedures; * Record performed services in a control system; * Serve customers professionally and courteously, providing information about maintenance services performed; * Strictly comply with occupational health and safety regulations in the workplace. **Requirements and Qualifications** * Driver’s license category B; * Proven experience documented on driver’s license. **Additional Information** * Meals provided on-site; * Meal allowance: R$563.50; * Transportation: Chartered bus; * Health insurance: Unimed; * Dental insurance: Bradesco; * Life insurance; * TotalPass. Armac is a national reference in specialized and complex service provision, equipment leasing, and sale of used equipment. The company has strong presence across key economic sectors: construction, energy, road infrastructure, agribusiness, fertilizers, industry, mining, forestry, ports, and rail terminals. Having celebrated its 30th anniversary in 2024, the company has a clearly defined purpose: to serve with excellence and safety those who build Brazil. Seeking simple and efficient solutions, with humility, ownership mindset, and courage are everyday practices at Armac. A company operating nationwide, offering positions across diverse functions, areas, and segments, with professionals stationed in offices, workshops, operations, and stores. At Armac, we believe education is a strategic pillar for social and professional transformation and business growth. Our internal training and qualification programs prepare our professionals to operate efficiently and safely across all segments. We work to deliver maximum value to our customers. But more than that, our responsibility is to create value for society as a whole. We understand that contributing to raising productivity standards across the entire value chain is essential to enabling the major transformations needed for the country. Creating and building opportunities and development for an increasingly productive and sustainable world. Transforming the future today—serving those who produce, those who make Brazil happen, whether in rural or urban settings. Join our team!