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Julio Cesar Leon Martinez

Head of Development
Skills
(Self-evaluation)
Mobile development 95%
Data optimization 90%
Web applications 90%
Node.js 81%
Database 27%
Backend development 27%
Frontend development 27%
Android 27%
Web applications 27%
Applications development 27%
Swift 24%
React 24%
Next js 24%
Javascript 24%
Html 24%
Languages
English:
  • Fala
    50%
  • Leitura
    50%
  • Escrevendo
    50%
Spanish:
  • Escrevendo
    100%
  • Leitura
    100%
  • Fala
    100%
Professional profile

Systems Engineer with over 8 years of experience in full-stack development, microservices, and infrastructure management. Expert in Java (Spring Boot), Kotlin Multiplatform, MongoDB/MySQL, Nginx/Apache, and CI/CD, leading high-impact projects and optimizing quality, deployment, and costs.

Work experience

Development Boss
devs technology sas | June 2022 - September 2025 (3 years 3 months)
Used skills
Technological Support / Educational Platform
mi mentor pro | January 2021 - May 2024 (3 years 4 months)
Used skills
Crew Chief (Networks And Electronic Security)
net colombia | March 2016 - December 2022 (6 years 9 months)
Used skills
Education experience
Courses in Mobile Development Backend Data Frontend Integration and Deployment AI and Blockchain
Udemy | Bootcamp
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