**JOIN CSN!** Companhia Siderúrgica Nacional seeks to attract and develop professionals who identify with its culture, always valuing diversity. Come be part of the history of Latin America's largest steel complex, a group whose essence is "to do well, do more, and do forever". **Responsibilities and duties** Main responsibilities: * Develop new refractory materials to achieve higher performance and address chronic process anomalies; * Be responsible for implementing projects and activities using maintenance methods and routine management; * Control costs and contracts through planning according to the refractory maintenance plan agreed upon with operational units; * Collaborate with operations in discussing and finding solutions to technical issues through measures aimed at achieving availability and production targets; * Conduct laboratory-scale and industrial-scale tests, experiments, and sampling, providing data for preliminary and conclusive technical analyses aimed at identifying root causes of problems, focusing on problem-solving and innovation; * Provide technical support to managerial and supervisory functions in monitoring and coordinating preventive, corrective maintenance, and equipment repairs; * Work together with technical and operational areas on company initiatives by supporting the development of improvement projects aimed at enhancing equipment and machinery performance, targeting ideal availability indices while considering safety, quality, environment, costs, and original equipment design parameters; * Promote development and continuous improvement of maintenance by refining equipment maintenance plans, critically analyzing technical and execution standards, as well as theoretical and practical training. **Requirements and qualifications** **List the required requirements and qualifications for the position \| Example:** Essential requirements for the position: * *Bachelor’s degree in Materials Engineering, Metallurgical Engineering, or Chemical Engineering;* * *Knowledge of refractory analysis techniques (qualitative and quantitative chemical analysis, mineralogical analysis, microstructural analysis, and physicochemical testing) and Post\-Mortem studies;* * *Knowledge of types of refractories, application, and installation of refractories;* * *Active CREA registration.* *Desirable requirements:* * *Intermediate English proficiency;* * *Power BI;* * *Quality tools.* **Additional information** **Our benefits include:** * Medical insurance; * Dental insurance; * Meal allowance; * Transportation voucher; * Private pension plan with company contribution matching the percentage defined by the employee, ranging from 3% to 6%; * Total Pass; * Wellhub. ***Benefits currently in effect, subject to rules and specifications established in Collective Agreements, Collective Bargaining Agreements, PPR Agreement, and/or HR Policies/Directives, which may be modified.*** Founded in April 1941, the**Companhia Siderúrgica Nacional \-** **CSN** was Brazil's first integrated flat steel producer, marking a milestone in the country's industrialization process. Privatized in 1993, the Company has since been modernizing and diversifying its operations. With nearly 33\.000 employees worldwide, we share a diverse and inclusive environment that drives our evolution through our people and our differences. Doing well, doing more, doing forever is our essence, directly linked to our ESG strategy and how we view our role and social responsibility. The group operates in 18 Brazilian states and also in other countries—Germany, United States, and Portugal. Its shares are listed on the São Paulo Stock Exchange (BM\&FBovespa) and the New York Stock Exchange (NYSE). In 2020, we joined the ESG Global Compact, committing to follow all its rules and recommendations. Our focus is on increasing diversity, encouraging inclusion, equality, respect, and tolerance for differences. **Doing well, doing more, doing forever.** **\#JOINCSN**