Julio Leonard
Lead Machine Learning Engineer at Ecoxyztem
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolJulio Leonard is a machine learning and product engineer with 10+ years building and shipping high-throughput, production-grade ML and distributed systems across startups and large enterprises. He has led supply-chain forecasting at H&M—operationalizing 100k+ models globally—modernized legacy architectures into domain-driven, event-driven platforms, and improved security and resilience while building teams from scratch. His background spans real-time systems (chat, notifications), mission-critical services (auth, booking), and ML platform work (Airflow, Merlin, experimentation and FinOps) enabling faster model lifecycle and measurable cost efficiencies. A Google Cloud Professional ML Engineer and Airflow practitioner, he blends hands-on coding with architecture, hiring, and cross-team program leadership. Based in Stockholm, he also advises on low/no-code tools and climate-tech productization, showing a pattern of turning complex ideas into pragmatic, scalable products.
10 years of coding experience
8 years of employment as a software developer
Bachelor of Technology - BTech, Computer Science, Bachelor of Technology - BTech, Computer Science at Institut Teknologi Sepuluh Nopember (ITS)Exchange Student, Computer Science, Exchange Student, Computer Science at Kumamoto University
Japanese, English, Indonesian
Stackoverflow
140reputation
29kreached
7answers
5questions
Github Skills (104)
programming-language10
fastapi10
python10
json-schema10
swagger10
mlops10
pydantic10
openapi10
javascript10
async10
swagger-ui10
api10
rest10
starlette10
golang10
Programming languages (13)
Github contributions (5)
imjuanleonard/feast
Feb 2020 - Oct 2020
Feature Store for Machine Learning
Contributions:105 pushes, 22 branches in 7 months
feature-storemachine-learning
imjuanleonard/imjuanleonard
Oct 2020 - May 2026
Contributions:15 pushes, 1 branch in 5 years 7 months
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.