Marcelo Altmann
Senior Software Engineer at ReadySet
Rio Grande do Sul, Brazil
Summary
🤩
Rockstar🎓
Top SchoolMarcelo Altmann is a senior C++ software engineer with over a decade of experience focused on database internals, scalable data systems, and performance optimization across the USA, Europe, and Latin America. He has repeatedly delivered high-impact improvements—5x faster streaming backups, 50% storage reduction via ZSTD, and a 17x RTO reduction—while also enhancing reliability through exponential back-off and deterministic record-and-replay debugging. At ReadySet he accelerated query execution with Index Condition Pushdown and a Hash Join implementation that yielded up to 960x speedups, and built tooling to auto-cache poor-performing queries. Comfortable across multiple languages and production environments, he blends deep systems knowledge with pragmatic product-minded engineering, including Kubernetes coredump tooling and IAM-backed credential handling. Based in Rio Grande do Sul, Brazil, Marcelo is as effective troubleshooting customer-facing incidents as he is architecting long-term, cost-saving features—his work on XtraBackup alone translated to real operational savings and predictable recovery behavior.
13 years of coding experience
16 years of employment as a software developer
Associate degree, Computer Science, Associate degree, Computer Science at Centro Universitário Feevale
Portuguese, English
Github Skills (138)
mysql-database10
transactional-database10
reverse-proxy10
postgresql10
databases10
proxy10
backup10
backend10
clustering10
proxysql10
rust-lang10
transactional10
oltp10
mysql-proxy10
gdb10
Programming languages (14)
Github contributions (5)
readysettech/proxysql_scheduler
Mar 2024 - Mar 2025
Automatic Query Caching with ProxySQL and Readyset
Contributions:31 reviews, 28 PRs, 54 pushes in 11 months
altmannmarcelo/percona-xtradb-cluster
Apr 2020 - Nov 2022
A High Scalability Solution for MySQL Clustering and High Availability
Contributions:96 pushes, 50 branches, 14 tags in 2 years 7 months
availabilitymysqltidbdatabase-accessscale
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