We are seeking a MAINTENANCE ASSISTANT who will perform maintenance and preventive activities on yellow 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 service, have an ownership mindset, courage to make things happen, and are interested in being part of an environment that values safety above all, encourages simplicity and humility in employee actions, and considers integrity, excellence, and ethics non-negotiable, then your place is here at Armac! **Responsibilities and duties** * Perform preventive maintenance on heavy machinery, including yellow and white line equipment, forklifts, and aerial work platforms, according to manufacturer manuals and established schedules; * Diagnose mechanical, hydraulic, and electrical faults 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 the performance of heavy machinery and identify potential issues; * Guide 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 follow occupational health and safety regulations in the workplace. **Requirements and qualifications** * Valid driver's license category B; * Proven experience documented in work record. **Additional information** * On-site meals; * Meal allowance: R$563.50; * Transportation: Shuttle service; * Health insurance: Unimed; * Dental plan: Bradesco; * Life insurance; * TotalPass. Armac is a national reference in providing specialized and complex services, equipment rental, and sales of used machinery. The company has a strong presence in key economic sectors: construction, energy, road infrastructure, agribusiness, fertilizers, industry, mining, forestry, ports, and rail terminals. The company, which celebrated its 30th anniversary in 2024, has a clear 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 across all regions of the country, offering positions in diverse roles, areas, and segments, with professionals working in offices, workshops, operations, and stores. At Armac, we believe education is a strategic pillar for social and professional transformation and business evolution. Our internal training and qualification programs prepare our professionals to operate efficiently and safely in all segments. We work to generate maximum value for the customer. But more than that, our responsibility is to create value for society as a whole. We understand that contributing to raising the productivity level across the entire 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, in rural and urban areas. Join our team!