Jonatas Leon
Senior Data Engineer
Minas Gerais, Brazil
Summary
👤
Senior🎓
Top SchoolJonatas Leon is a Senior Data Engineer with 11 years of hands-on experience building backend and data-driven systems, currently shaping scalable ingestion pipelines and vector search features at haistack.ai. He blends strong Python, Airflow and SQLAlchemy expertise with practical performance tuning in PostgreSQL/MySQL, and has integrated LLMs and LangChain for prompt-driven retrieval and automated information extraction. His background includes backend API design with FastAPI/Flask, React/Redux front-end exposure, and work on distributed data stores like AtomSpace, MongoDB and Redis. Jonatas has delivered cost-saving ETL optimizations and improved observability in production pipelines, reflecting a pragmatic focus on reliability and efficiency. Trained as a systems analyst with an MBA in Data Science and Business Analytics, he pairs technical depth with product-minded data strategy. A continual learner based in Minas Gerais, Brazil, he often bridges GIS and open-data project experience with cutting-edge vector retrieval implementations.
11 years of coding experience
11 years of employment as a software developer
Master of Business Administration - MBA Data Science and Business Analytics, Master of Business Administration - MBA Data Science and Business Analytics at MBA USP/EsalqEscolas Técnicas EstaduaisTechnologist in Systems Analysis and Development Computer Programming, Technologist in Systems Analysis and Development Computer Programming at Faculdade de Tecnologia de São Paulo - FATEC-SP
Portuguese, English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (99)
windows10
repr10
linux10
shell10
console10
android10
command-line10
cli9
bash9
webfonts9
bsd9
documentation9
macos9
eager8
javascript8
Programming languages (8)
Github contributions (5)
jonatasleon/tdd-with-python
Dec 2015 - Aug 2020
Contributions:1 PR, 22 pushes, 1 branch in 4 years 8 months
jonatasleon/jonatasleon.github.io-old
Dec 2017 - Feb 2024
Blog pessoal sobre programação, tecnologia, a vida, o universo e tudo mais.
Contributions:10 PRs, 75 pushes, 7 branches in 6 years 3 months
reactpythonjavascriptandroidruby
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.