We are ERO, a mining company born in the heart of Brazil that has grown to bring more strength and energy to the world—a strength that drives productive sectors and contributes to the development of different regions. Since 1979, when it began operations at the Caraíba unit, the company has been consolidating its presence in the Brazilian mineral sector, expanding into the gold mine in Xavantina and advancing the implementation of the Tucumã unit—which stands out as one of the country's main copper production hubs. Our growth is driven by exploration expertise, which helps us extend the lifespan of our mines and move forward with new projects, such as the Furnas Project in Pará. Our approach to mining is guided by solid values: care, courage, honesty, collaboration, and excellence. These principles are central to everything we do—from the mine floor to strategic decisions. They also guide how we support the growth of every individual at Ero. Our goal is clear: to be the best mining company in Brazil, and we know this is only possible by investing in the people who build this future with us every day. **Do you relate to this?** We are seeking a person to work as a **Laboratory Assistant**, responsible for receiving, verifying, inspecting, and organizing samples chronologically or by priority, ensuring compliance with international standards and promoting a culture of continuous improvement and operational excellence. **Work location:** Nova Xavantina \- Mato Grosso **Employment model:** Permanent, CLT \| On-site **Management:** Processing Management (for internal use) **Grow with us!** \#SomosEro \#JoinUs \#Opportunity ERO does not charge any fees for participation in its recruitment and selection processes. All applications must be submitted exclusively through our official channels. **Responsibilities and duties** **Responsibilities and duties** * Receive, verify, inspect, and organize samples chronologically or by priority; * Store received samples in appropriate locations; * Perform physical sample preparation processes (weighing, drying, crushing, splitting, pulverizing, granulometric analysis), and associated process controls; * Operate equipment required by methodologies, including performance verification; * Prepare fusion fluxes and perform Fire Assay and screenassay activities; * Request industrial maintenance and communicate with laboratory supervision in case of operational stoppages; * Relay customer suggestions and complaints; * Conduct quality control tests on samples; * Monitor quality control charts and spreadsheets; * Fill out relevant spreadsheets and records; * Inspect materials received in the laboratory, indicating when supplies need replenishment; * Ensure proper cleaning of materials, glassware, and accessories used in physical sample preparation; * Assist in complying with internal rules, regulations, and procedures related to health, safety, and the environment; * Perform other similar duties as requested by immediate management. ERO does not charge any fees for participation in its recruitment and selection processes. All applications must be submitted exclusively through our official website or via job postings on Ero's LinkedIn profile. **Requirements and qualifications** * Technical degree in chemistry, mining, or metallurgy is desirable **Additional information** Availability to reside in the interior of the state of Mato Grosso \- MT; * We offer competitive salary * Profit-sharing plan (PLR) * Private pension plan * Medical insurance * Dental coverage * Life insurance * On-site meals (at operational sites) * Meal allowance (at offices) * Food allowance * Transportation * Quality of life program * Gympass – Wellhub * Extended maternity and paternity leave (Citizen Company) * Club membership agreement—may vary by location * Eyewear purchase assistance for family members #### **We are Ero, one of Brazil's leading producers of copper and gold.** **We are part of a global group headquartered in Canada with a strong presence in Brazil. We have two copper operations: Caraíba in Bahia, and Tucumã in Pará. Additionally, our gold mine Xavantina is located in Mato Grosso.** #### **Our growth is driven by exploration expertise, which helps us extend the lifespan of our mines and advance new projects, such as the Furnas Project in Pará.** #### **In everything we do, our mission is clear:** **to responsibly produce the essential minerals for a better future.** #### **We deeply care about the well\-being of our people and communities, because we know that caring for one another is one of our greatest values. Beyond Care, we value and cultivate Courage. We have the courage to innovate, evolve, and face upcoming challenges.** #### **We are Ero: a company that unites our operations in Brazil with global expertise and diverse perspectives. Together, we are growing stronger every day, working to achieve our vision of becoming the best mining company in the country.** #### **Join us in this journey!**