Job Summary: The Senior DBA will be responsible for the complete and strategic administration of database environments, ensuring high availability, performance, security, and data integrity. Key Highlights: 1. Complete and strategic database administration 2. Guarantee of high availability, security, and data integrity 3. Performance optimization (SQL and PL/SQL) and backup and recovery routines **Grow with Cardway** At Cardway, we believe that well-built connections drive businesses and transform careers. We are a payment solutions company powered by people, technology, and relationships — in an environment where you can learn, develop, and see the impact of your work on the company’s and our partners’ growth. If you seek a collaborative, dynamic environment with real development opportunities, and want to join a team that builds results together, this could be your next opportunity. **About Cardway** Cardway is a Brazilian payment solutions and digital services company formed through the merger of Grupocard and Movilway — two market-leading companies combining decades of expertise and innovation in the sector. We operate with a comprehensive and integrated portfolio of solutions covering payment methods, telecommunications, digital services, urban mobility, banking services, and the CardHub platform — connecting everything into a single ecosystem for our partners. Our focus is to simplify our partners’ daily operations and accelerate their business growth across Brazil. Our culture is guided by values that shape our decisions: * Commitment to Partners and Customers * Transparency * Excellence in Practice * Collaboration * Responsibility We believe sustainable results emerge when people feel included and work together in an ethical, collaborative, and well-structured environment. **Responsibilities and Duties** As a **Senior DBA**, you will be responsible for the complete and strategic administration of the company’s database environments, ensuring high availability, performance, security, and data integrity. Your main responsibilities will include: * Administering databases, including installation, configuration, monitoring, and preventive maintenance. * Ensuring high availability, security, and data integrity, while proposing improvements and automations for critical environments. * Performing database tuning, analysis, and performance optimization (SQL and PL/SQL). * Planning and executing backup and recovery routines, ensuring data integrity and security. * Identifying and resolving incidents in Linux environments, performing troubleshooting and basic automations. * Participating in projects involving database environment upgrades, migrations, and evolution. * Supporting development teams in database analysis, modeling, and best practices. * Implementing improvements and automations in critical environments to increase efficiency and reduce risks. * Using monitoring tools to track performance and availability. * Operating in compliance with information governance and security best practices. **Work Location**: Belo Horizonte/MG, São Paulo/SP, or Campo Grande/MS **Work Modality**: Hybrid **Requirements and Qualifications** For this position, we seek individuals eager to learn, grow, and build trusted relationships with our partners. **Mandatory Requirements:** * Completed undergraduate degree in Computer Science, Information Systems, Systems Analysis and Development, or related fields. * Solid knowledge of Oracle Database 11g and 19c. * Experience with ASM, Oracle RAC, Data Guard, and Oracle ecosystem tools. * Administration of Linux environments (configuration, troubleshooting, and basic automations). * Experience in database performance monitoring and analysis. **Preferred Qualifications:** * Knowledge of PostgreSQL, Cassandra, and SQL Server. * Experience in SQL and PL/SQL tuning. * Hands-on experience with monitoring tools such as Zabbix and Oracle Enterprise Manager (OEM). * Experience with agile methodologies, especially Kanban. **Competencies and Skills:** * Strong analytical ability and capacity to solve complex problems. * Sense of urgency for operating in critical environments. * Organizational skills and ability to prioritize tasks in high-demand environments. * Good communication skills for interaction with technical teams and business areas. * Proactivity and preventive mindset in environment management. **Additional Information** * Health and Dental Insurance * TotalPass Partnership * Life Insurance * Meal/Voucher Allowance * Christmas Bonus * SESC Membership * Free medical consultation via Conexa Saúde * PET Benefits Program with Guapeco (discounts and benefits for pet care) * Transportation Allowance In addition to a comprehensive benefits package, you’ll also have access to Uniway — our corporate education platform offering courses and training to support your professional growth. **Diversity Matters (a Lot!)** This position is also open to persons with disabilities (PWD). At Cardway, we value attitudes, knowledge, and the drive to make things happen. We believe in the power of connections and in diversity in all its forms. Regardless of age, race, color, religion, gender identity, or sexual orientation, we seek individuals with passion in their eyes and the desire to drive real change. **Secure and Transparent Selection Process** Cardway does not charge any fees, request paid courses, or collect payments at any stage of the selection process. All official communications are conducted exclusively through company channels. If you have questions, please contact our Recruitment and Selection team at: recrutamento@cardway.com.br Our commitment is to ensure an ethical, secure, and transparent process for everyone! Do you resonate with this opportunity? Then apply now and grow with us! At Cardway, you don’t join just to fill a role — you join to make a real difference in Brazilian retail. We’re the company that connects payment methods, top-ups, mobility, and technology so millions of people can buy, sell, and move with less friction. Here, we work with clear goals, direct conversations, and zero comfort zone. We value those who think like owners, take responsibility, truly collaborate, and deliver excellence daily. If you want a place where your ideas are tested in practice, learning is constant, and results matter as much as respect for people, Cardway is your next professional home. Come grow with us.