Juan Celis
Software Engineer at Mercadona Tech
Valencia, Valencian Community, Spain
Summary
👤
Senior🎓
Top SchoolJuan Celis is a versatile software engineer with 9 years of experience building backend systems, data pipelines, and web applications across startups and enterprise teams. He has a strong track record improving performance and reliability—designing caching and queuing solutions that scaled APIs to thousands of requests per second and migrating thousands of clients between product versions. Comfortable across the stack, he has implemented ETL and lakehouse models with DBT, integrated REST and SOAP services, and used Redis, Snowflake, and MongoDB to support analytics and ML workflows. He pairs a pragmatic engineering mindset with a passion for readable, maintainable code and has mentored others in applied Python data analysis. Based in Valencia and currently at Mercadona Tech, he’s finishing an MS in Artificial Intelligence, bringing both practical production experience and fresh ML training to system design.
8 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering - BE Systems Engineering, Bachelor of Engineering - BE Systems Engineering at Universidad Distrital Francisco José de CaldasUniversidad de los Andes
Spanish, English
Stackoverflow
1reputation
0reached
1answer
0questions
Github Skills (26)
javascript9
nodejs9
react9
simple-api8
django-rest8
css8
math7
rest-framework7
django7
rest-api6
django-login6
api6
django-rest-framework6
codebase6
python6
Programming languages (5)
Github contributions (5)
jsparadacelis/api-cuenta
Oct 2018 - Jun 2020
This is an API built using Django and Django REST Framework. Allows to create transactions, accounts, profiles and clients.
Contributions:63 commits, 1 PR, 34 pushes in 1 year 7 months
apipythondjango-rest-frameworkdjangorest-framework
jsparadacelis/library-app
Jan 2020 - Apr 2023
Simple api built using django and django REST framework
Contributions:12 PRs, 29 pushes, 4 branches in 3 years 3 months
apipythondjango-rest-frameworkdjangorest-framework
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