Hollwann Leon
Software Engineer at Abroad
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolHollwann Leon is a Full-Stack Software Engineer with 8 years of experience building scalable React and Node.js applications and cloud-native infrastructure from Madrid. He has a strong fintech and blockchain focus—having integrated Nequi payments early in Colombia and currently architecting AML/KYC-compliant crypto off-ramps on the Stellar network for LatAm wallets. Hollwann excels at micro front-end architectures, CI/CD optimization, and running production Kubernetes on GCP, routinely translating complex compliance and performance requirements into reliable systems. He’s shipped AI-enhanced property management marketplaces and modularized UIs that cut developer friction by 40%, showing a bias for pragmatic, measurable improvements. As a mentor and hands-on engineer, he modernizes developer workflows and fosters cross-functional delivery. His blend of electrical engineering training and an MS in Computer Science underpins a methodical approach to distributed systems and fintech productization.
8 years of coding experience
7 years of employment as a software developer
Bachelor of Engineering - BE, Electrical and Electronics Engineering, Bachelor of Engineering - BE, Electrical and Electronics Engineering at Universidad Distrital Francisco José de CaldasMaster of Science - MS, Computer Science, Master of Science - MS, Computer Science at Fitchburg State University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (22)
react6
angular5
vue5
ui-components4
stencil2
storage2
javascript2
dashboard2
database2
jose2
single-spa2
typescript1
cyclejs1
valine1
react-native1
Programming languages (5)
Github contributions (5)
proyectologico/logico
Feb 2018 - Jun 2018
Contributions:14 commits, 11 pushes, 1 branch in 4 months
hollwann/dashboard-iot-udistrital
Jun 2020 - Feb 2021
Dashboard IOT Universidad Distrital Francisco Jose de Caldas
Contributions:7 commits, 12 PRs, 11 pushes in 8 months
iot-dashboarduniversidadjosedashboardiot
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