Lead IT Database Administrator

This position is posted by Jobgether on behalf of a partner company. We are currently looking for a Lead IT Database Administrator in Brazil.

In this role, you will act as a senior technical leader responsible for ensuring the performance, availability, and scalability of critical database environments supporting large-scale, high-transaction platforms. You will take ownership of complex Oracle-based ecosystems, including Exadata and cloud-based deployments, driving optimization and reliability across mission-critical workloads. Working at the intersection of infrastructure, application, and engineering teams, you will solve deep performance challenges and guide architectural decisions. You will also play a key role in defining standards, improving operational maturity, and mentoring other DBAs. This position requires strong hands-on expertise, leadership capability, and the ability to operate in high-pressure production environments. It is ideal for someone who thrives on solving complex database problems and enabling business performance through data systems excellence.

In this role, you will lead the design, optimization, and operation of enterprise database environments while ensuring stability, scalability, and high performance across multiple platforms.

• Act as the primary subject matter expert for SQL performance tuning, diagnosing and resolving complex database bottlenecks in Oracle environments.
• Lead database architecture initiatives, including high availability setups (RAC, Data Guard), migrations, and performance optimization projects.
• Manage and optimize Oracle Exadata and Exadata Cloud@Customer environments, including coordination with vendor support when needed.
• Collaborate with engineering teams to optimize queries, execution plans, and data models for large-scale transactional and ETL workloads.
• Oversee database environments across Oracle, SQL Server, MySQL, and PostgreSQL in both on-prem and cloud infrastructures.
• Drive automation, operational efficiency, and standardization of DBA processes and workflows.
• Ensure compliance with security, audit, and regulatory requirements, including access control and encryption practices.
• Lead disaster recovery planning, testing, and execution to ensure system resilience.
• Provide mentorship and technical leadership to junior and mid-level DBAs, promoting best practices and knowledge sharing.
• Participate in on-call rotations and support critical production systems when required.

Requirements:

This role requires a highly experienced database professional with strong technical depth, leadership capability, and hands-on expertise in complex, high-scale environments.

• Bachelor’s degree in Computer Science, Information Systems, or a related field.
• 6+ years of experience in Database Administration, with strong focus on Oracle environments.
• Deep expertise in SQL performance tuning, including query optimization and execution plan analysis.
• Strong hands-on experience with Oracle Exadata and Exadata Cloud@Customer (OCI and/or on-prem).
• Solid experience with Oracle technologies such as RAC, Active Data Guard, OEM, AWR, and ASH.
• Proven ability to troubleshoot across database, application, OS, and infrastructure layers.
• Experience working with cloud environments such as AWS and/or Oracle Cloud Infrastructure.
• Strong knowledge of relational and non-relational databases (SQL Server, MySQL, PostgreSQL).
• Experience mentoring engineers and leading technical initiatives independently.
• Strong communication skills and ability to collaborate with global, cross-functional teams.

Benefits:

• Competitive compensation package with performance-based components
• Health, dental, and life insurance coverage
• Meal allowance for flexible daily use (restaurants and supermarkets)
• Home office support allowance
• Gym and wellness subscription access
• Educational partnerships and discounts (universities, language schools, and more)
• Employee assistance program offering psychological, legal, and financial support
• Payroll-deducted loan option
• Exclusive discounts with partner brands and vendors
• Quarterly global “4 Days Off” collective break initiative
• Remote-friendly environment with flexibility and autonomy
• Additional benefits depending on region and eligibility