Alex Charis
Senior System Engineer at Cloudflare
Cambridge, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolAlex Charis is a Senior System Engineer in Cambridge with 11 years building resilient, scalable data systems and a strong foundation in mathematics. He has led production-grade MySQL-to-Vitess migrations and helped turn internal fleets into a database-as-a-service at HubSpot, contributing upstream to the well-known Vitess project to adapt its SQL parser and access controls. At DigitalOcean he simplified hosted MongoDB certificate workflows with Let's Encrypt, and at Cloudflare he now applies that operational and security-minded lens to large-scale infrastructure. Comfortable in both C/Python/Java toolchains and Vault/Kubernetes ecosystems, Alex combines hands-on debugging and benchmark-driven performance work with clear cross-team communication. A detail-oriented thinker, he often surfaces subtle protocol and parsing issues early, turning them into durable platform improvements.
11 years of coding experience
12 years of employment as a software developer
B.Sc. Mathematics, B.Sc. Mathematics at University of TorontoPhD Mathematics, PhD Mathematics at Brandeis University
Github Skills (14)
go10
sql10
mysql9
database-design9
database-administration8
database-cluster8
databases8
database8
admin8
sha7
kubernetes-pods7
cnc7
kubernetes7
vitess7
Programming languages (6)
Github contributions (5)
vitessio/vitess
Feb 2017 - Feb 2018
Vitess is a database clustering system for horizontal scaling of MySQL.
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:6 commits, 58 PRs, 186 comments in 1 year
Contributions summary:Alex primarily contributed to the Vitess database clustering system by improving the SQL parser, incorporating new features, and addressing various code-related issues. They introduced new tokens, fixed parsing problems, and made enhancements to the parser's functionality. In addition to parser improvements, the user also worked on backend components, including changes to table access control, showing a deeper understanding of the codebase.
mysqltidbhorizontal-scalingsqlvitess
HubSpot/collectd-vitess
Jun 2017 - Apr 2019
Collectd Plugin for Vitess - http://vitess.io/
Contributions:1 PR, 1 push, 1 branch in 1 year 9 months
collectdvitessvitevuecollectd-plugin
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