Sergio Lema
CTO at Na(i)scent
Greater Paris Metropolitan Region France
Summary
👤
Senior🎓
Top SchoolSergio Lema is a CTO and seasoned software architect with over 20 years of experience designing and delivering scalable web and AI-driven systems across e-commerce, finance, automotive, and embedded domains. He blends hands-on expertise in Java, Spring Boot, Python, React and cloud platforms (AWS/GCP) with a strong focus on microservices, DevOps, and cloud security to build resilient production-grade architectures. As a leader he mentors teams, shapes developer roadmaps, and has grown engineering groups from small specialist teams to distributed squads of ~20 engineers. He currently drives AI and RAG solutions at NA(i)SCENT while advising Packt on Java/Spring content and running his own developer community, The Dev World. Notably, he has implemented real-time video/GPU processing and event-driven data lakes for luxury and industrial clients, showing a knack for blending edge and cloud processing. Based in the Greater Paris area, he pairs practical engineering rigor with a passion for knowledge sharing and continuous improvement.
11 years of coding experience
16 years of employment as a software developer
Certification Webmarketing, Marketing, Certification obtained, Certification Webmarketing, Marketing, Certification obtained at WebMyDayIngeniero, Electrónica, Ingeniero, Electrónica at Universidade de Vigo
French, Spanish, English
Stackoverflow
1,561reputation
762kreached
58answers
5questions
Github Skills (42)
backend8
jwt-authentication8
flask-application7
spring-boot7
authorization-server7
spring7
pip6
frontend6
unity-game-engine6
aws-cli6
flask6
homebrew6
hibernate6
singleton6
client-library6
Programming languages (3)
Github contributions (5)
serlesen/backend-social-network
Apr 2020 - Dec 2022
Contributions:29 commits, 3 PRs, 52 pushes in 2 years 8 months
serlesen/microservices-bookstore
Nov 2020 - Jun 2022
Contributions:15 commits, 11 pushes, 4 branches in 1 year 7 months
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