Senior Database Administrator (DBA)

We are looking for a Specialist Database Administrator (DBA) to work on the support, performance, and reliability of a dense and critical cloud data environment on AWS, under financial market regulatory requirements (PCI, BACEN, and Open Banking). The person will be responsible for ensuring the availability, security, and optimization of a concentrated fleet of managed relational databases (with a strong predominance of Amazon Aurora MySQL) and continuous data replication pipelines, supporting engineering, data, and product teams in high-availability initiatives, engine modernization, security hardening, and operational continuity. 🎯 What will your main activities be? Administer, monitor, and optimize a fleet of managed relational databases on AWS, predominantly Amazon Aurora MySQL 8.0 at scale (dozens of clusters), as well as Aurora PostgreSQL, Amazon DocumentDB, and SQL Server; Conduct engine version upgrades (major/minor) with minimal impact, standardizing versions in an environment that currently runs multiple releases; Ensure high availability and zone resilience (Multi-AZ, read replicas, cross-cluster replicas) and recovery plans (backup/restore, RTO/RPO); Operate AWS DMS as a continuous replication (CDC) production pipeline — not just one-off migrations — maintaining tens to hundreds of stable tasks, including integrations with Amazon Kinesis and data lakes; Administer in-memory cache solutions