Leonardo Scalco
Senior AI Engineer at Kleinanzeigen
Barcelona, Catalonia, Spain
Summary
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Senior🎓
Top SchoolLeonardo Scalco is a Senior AI Engineer based in Barcelona with 11 years of experience blending web development, data engineering, and production LLM systems. He led a domain-scoped data platform migration and built Kafka-native real-time pipelines, dbt-driven ELT workflows, and CI/CD for zero-downtime deployments at Kleinanzeigen and Adevinta. More recently he designed and shipped production multi-step LLM agents and JVM-based streaming chatbots with end-to-end observability and proactive PII masking, marrying research-rooted rigor with pragmatic engineering. His master’s research in information visualization underpins a strong product sensibility for making complex data and AI behaviors interpretable. Comfortable across Python, Java, Spark, Airflow, Databricks and Kubernetes, he thrives on architecting scalable, privacy-aware systems that turn messy data into actionable, observable ML-driven experiences.
11 years of coding experience
11 years of employment as a software developer
Informatics, Informatics at Instituto Federal de Educação, Ciência e Tecnologia do Paraná - IFPRMaster's degree, Computer Science, Master's degree, Computer Science at USP - Universidade de São PauloBachelor of Science - BS, Computer Science, Bachelor of Science - BS, Computer Science at Universidade Estadual do Oeste do Paraná
English, Portuguese, Spanish
Github Skills (17)
stream5
avro4
json4
kafka-streams4
serialization4
code-generation4
python4
data-processing3
streaming3
json-schema3
schema3
kafka3
asyncio3
distributed-systems2
dataflow2
Programming languages (1)
Github contributions (5)
leoscalco/es2-foto_personalizada
May 2016 - Sep 2016
Contributions:15 commits, 9 pushes, 2 branches in 4 months
leoscalco/esm-rest-service
Sep 2017 - Dec 2017
Contributions:5 pushes, 1 branch in 2 months
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