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ritojoao/README.md

Hi, I'm Rito 👋

Staff Database Reliability Engineer who builds platforms. I keep databases fast, boring and recoverable, and I turn the work around them into self-service.

  • Deep: PostgreSQL and MySQL (RDS, Aurora), DynamoDB
  • Daily: MongoDB and Amazon DocumentDB
  • Platform: Apache Airflow as the engine, Backstage as the front door, Python in between
  • Also: Prometheus monitoring, partitioning, migrations, AI agents for database maintenance
  • Certified: AWS Solutions Architect Professional, Astronomer DAG Authoring for Apache Airflow 3, AWS Database Specialty (2023-2026), MongoDB skill badges in indexing design and CRUD (Credly)

Things I've shipped

  • Migrated 280+ production MySQL databases from RDS to Aurora: cutover under 5 minutes, rollback via reverse replication, about 40% lower cost (AWS blog).
  • Fixed DynamoDB throttling on a hot path by splitting reads and writes (CQRS) (TDC talk).
  • Built a hot/warm/cold data lifecycle so large tables stay small and cheap.
  • Led an internal developer portal with 40+ self-service capabilities used by 4 teams, cutting database provisioning from days to minutes.
  • Run database maintenance as Airflow DAGs with AI agents in the loop (TDC talk).

Writing and talks

Open source

52 upstream PRs 8 merged 30 projects thanked by maintainers 2

Contributing upstream to the tools I run in production: pg_partman · postgres_exporter · mongodb_exporter · dynamodump

Critical database infrastructure
Project Pull request Merged by Kind words
Patroni
patroni/patroni		 Skip ensure_unique_name() with the Kubernetes DCS @hughcapet
mydumper
mydumper/mydumper		 Skip index checksum verification when --skip-indexes is used @davidducos
mydumper
mydumper/mydumper		 Honor --ignore-set when --optimize-keys=SKIP is used @davidducos
mydumper
mydumper/mydumper		 Handle SIGTERM and non-interactive SIGINT without holding locks or reporting success @davidducos 🙏 @frankii91 "Thanks @ritojoao."
mydumper
mydumper/mydumper		 Fix table-level trigger checksum options @davidducos
python-mysql-replication
julien-duponchelle/python-mysql-replication		 fix: parse MariaDB 11.7 Q_GTID_FLAGS3 and Q_CHARACTER_SET_COLLATIONS status variables @dongwook-chan 🙏 @dongwook-chan "Thanks for the focused fix and regression test."
community.postgresql
ansible-collections/community.postgresql		 fix(postgresql_alter_system): compare with the pending value when a restart is required @hunleyd
Amazon DocumentDB tools
awslabs/amazon-documentdb-tools		 metrics-collector v2.5.2: report the observed data window, not only the requested period (#209) @tmcallaghan

In review · 43 open pull requests in 27 projects · All my PRs

Patroni, mydumper, gh-ost, postgres_exporter, pg_repack, ProxySQL, WAL-G, pgroll, PyMySQL, PynamoDB, dynamodump, awslabs/mcp, aws-advanced-python-wrapper, pg_partman, pgBouncer, pgcli, CloudNativePG, Postgres Operator, Liquibase, go-sql-driver/mysql, go-mysql, pgstream, mariadb-operator, redis-operator, Apache AGE, ldap2pg, prometheus-rds-exporter.

🇧🇷 Em português

Oi, sou o Rito 👋

Staff Database Reliability Engineer que constrói plataforma. Mantenho bancos de dados rápidos, previsíveis e recuperáveis, e transformo o trabalho em volta deles em self-service.

  • Fundo: PostgreSQL e MySQL (RDS, Aurora), DynamoDB
  • Dia a dia: MongoDB e Amazon DocumentDB
  • Plataforma: Apache Airflow como motor, Backstage como porta de entrada, Python no meio
  • Também: monitoração com Prometheus, particionamento, migrações, agentes de IA para manutenção de banco
  • Certificações: AWS Solutions Architect Professional, Astronomer DAG Authoring for Apache Airflow 3, AWS Database Specialty (2023-2026), badges de MongoDB em design de índices e CRUD (Credly)

O que já entreguei

  • Migrei mais de 280 bancos MySQL de produção do RDS para o Aurora: cutover abaixo de 5 minutos, rollback por replicação reversa, custo cerca de 40% menor (blog da AWS).
  • Resolvi throttling do DynamoDB num caminho crítico separando leitura e escrita (CQRS) (palestra no TDC).
  • Montei um ciclo de vida de dados quente/morno/frio para tabelas grandes ficarem pequenas e baratas.
  • Liderei um portal interno com mais de 40 capacidades self-service usado por 4 times, levando o provisionamento de banco de dias para minutos.
  • Rodo manutenção de banco como DAGs do Airflow, com agentes de IA no meio do fluxo (palestra no TDC).

Textos e palestras

Open source

52 PRs upstream 8 merged 30 projetos 2 agradecimentos de mantenedores

Infraestrutura crítica de banco de dados
Projeto Pull request Merged por Palavras gentis
Patroni
patroni/patroni		 Skip ensure_unique_name() with the Kubernetes DCS @hughcapet
mydumper
mydumper/mydumper		 Skip index checksum verification when --skip-indexes is used @davidducos
mydumper
mydumper/mydumper		 Honor --ignore-set when --optimize-keys=SKIP is used @davidducos
mydumper
mydumper/mydumper		 Handle SIGTERM and non-interactive SIGINT without holding locks or reporting success @davidducos 🙏 @frankii91 "Thanks @ritojoao."
mydumper
mydumper/mydumper		 Fix table-level trigger checksum options @davidducos
python-mysql-replication
julien-duponchelle/python-mysql-replication		 fix: parse MariaDB 11.7 Q_GTID_FLAGS3 and Q_CHARACTER_SET_COLLATIONS status variables @dongwook-chan 🙏 @dongwook-chan "Thanks for the focused fix and regression test."
community.postgresql
ansible-collections/community.postgresql		 fix(postgresql_alter_system): compare with the pending value when a restart is required @hunleyd
Amazon DocumentDB tools
awslabs/amazon-documentdb-tools		 metrics-collector v2.5.2: report the observed data window, not only the requested period (#209) @tmcallaghan

Em revisão · 43 pull requests abertos em 27 projetos · Todos os meus PRs

Patroni, mydumper, gh-ost, postgres_exporter, pg_repack, ProxySQL, WAL-G, pgroll, PyMySQL, PynamoDB, dynamodump, awslabs/mcp, aws-advanced-python-wrapper, pg_partman, pgBouncer, pgcli, CloudNativePG, Postgres Operator, Liquibase, go-sql-driver/mysql, go-mysql, pgstream, mariadb-operator, redis-operator, Apache AGE, ldap2pg, prometheus-rds-exporter.

Sempre topo uma boa conversa sobre banco de dados em produção.

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