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John Batista

@johnbatista

Experienced Database Administrator skilled in Oracle, MySQL, PostgreSQL, and SQL Server.

Brazil
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What I'm looking for

I seek a hands-on DBA role focused on high-availability, backups, migrations, automation, and customer-facing incident resolution in a collaborative, fast-paced team.

I am an experienced Database Administrator with three years managing Oracle, MySQL, PostgreSQL, and SQL Server environments. I specialize in backup and recovery, database migrations, high-availability solutions, and performance optimization.

I have hands-on experience with RMAN, Data Pump, Rubrik, replication (DBLink), dbaascli, and tooling such as Oracle Enterprise Manager, Jenkins, CyberArk, and monitoring with Zabbix and Grafana. I work across cloud and on-premises infrastructures and participate in 24/7 on-call rotational support.

My approach is customer-focused: I manage incident response, ticket handling with Jira and Zendesk, and clear client communications while documenting maintenance procedures to improve resolution times. I also script and automate tasks to improve reliability and efficiency.

I hold academic credentials in Business and Analysis & Systems Development and support knowledge transfer through training and remediation of DBA learning materials. I seek to contribute strong analytical problem-solving and reliable database operations to a fast-paced technical team.

Experience

Work history, roles, and key accomplishments

Education

Degrees, certifications, and relevant coursework

Universidade Candido Mendes logoUM

Universidade Candido Mendes

Associate/Bachelor's Degree, Analysis and Systems Development

2021 - 2023

Completed an Associate/Bachelor's degree in Analysis and Systems Development at Universidade Candido Mendes, finishing in 2023.

Universidade Federal Rural do Rio de Janeiro logoUJ

Universidade Federal Rural do Rio de Janeiro

Bachelor's Degree, Business

2019 - 2022

Completed a Bachelor's degree in Business at Universidade Federal Rural do Rio de Janeiro, finishing in 2022.

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John Batista - Database Administrator - TOTVS | Himalayas