Leonardo Rifeli
Co-Founder & CTO at Harmo - Feedback Intelligence
Santa Catarina, Brazil
Summary
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Rockstar🎓
Top SchoolLeonardo Rifeli is a founder and CTO with 11+ years of hands-on experience and 15+ years of broader engineering practice in building cloud-native, data-driven platforms that turn operational data into real-time business intelligence. At Harmo he architects AI-first systems—RAG pipelines, embeddings (pgvector), LangChain/LangGraph integrations and multi-tenant data stacks—that let brands query and act on their data via natural language. His stack blends data engineering (Airflow, real-time ingestion, automated insight generation) with robust backend and infra (Golang microservices, Kubernetes, Redis, PostgreSQL, OpenSearch) on AWS. He mentors regional tech communities through ACATE and eMentor.br, pairing startup leadership with active developer advocacy. Based in rural Santa Catarina, he balances family life with publishing technical content at rifeli.dev and soon sharing his engineering process on YouTube and Twitch. An avid problem-solver, he combines a mathematics background and formal data science training to operationalize LLMs into production-grade, event-driven architectures.
11 years of coding experience
10 years of employment as a software developer
Bacharelado em Engenharia de Computação Engenharia de Computação, Bacharelado em Engenharia de Computação Engenharia de Computação at Faculdades LogattiBacharelado em Engenharia de Computação, Bacharelado em Engenharia de Computação at UniSociesc Centro UniversitárioBachelor's degree Mathematics, Bachelor's degree Mathematics at Centro Universitário Internacional UNINTERPostgraduate Degree Ciência de Dados Big Data & Analytics, Postgraduate Degree Ciência de Dados Big Data & Analytics at Faculdade MetropolitanaBachelor's degree Mathematics, Bachelor's degree Mathematics at Universidade Federal de Santa CatarinaEnsino Fundamental e Médio, Ensino Fundamental e Médio at E.E Ergilia MicelliSpecialization in Applied Statistics, Specialization in Applied Statistics at Anhanguera Educacional
Portuguese, English
Stackoverflow
51reputation
11kreached
1answer
0questions
Github Skills (142)
python10
testing10
automation10
nike10
unlock10
creative-commons10
cpp10
questions-and-answers10
simplify10
javascript10
chromium10
firefox10
multiserver10
api10
developer-tools10
Programming languages (18)
Github contributions (5)
leonardorifeli/leonardorifeli
Jul 2020 - Sep 2024
Contributions:55 pushes, 1 branch in 4 years 2 months
leonardorifeli/mit-license
Apr 2015 - Jul 2019
Hosted MIT License with details controlled through this repo
Contributions:2 PRs, 3 pushes in 4 years 4 months
mit-licensecontrolledhosteddetailsmit
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