Ruben Espinoza
Backend Java Developer at Vector ITC
Madrid, Community of Madrid, Spain
Summary
👤
Senior🎓
Top SchoolRuben Espinoza is a backend Java developer with 10 years of experience building microservices and scalable web applications using Spring, Spring Cloud, Project Reactor, Hibernate and MongoDB, currently focused on cloud-native deployments with Kubernetes and OpenShift. He has a strong track record delivering performance-focused features and integration-tested services (Spring Cloud Contract, Resilience4J) across sectors from public administration to monitoring and security tooling. Comfortable across the full Java ecosystem, Ruben blends hands-on backend engineering with frontend integration (Angular, Vaadin) and pragmatic agile practices like TDD and Scrum. A lifelong tinkerer, he pairs software expertise with embedded-systems and cybersecurity interests—having worked with Raspberry Pi, Arduino and ESP8266—bringing hardware-aware perspective to backend problems. Based in Madrid, he’s keen on exploring cutting-edge tech and continuous improvement, and maintains a personal site showcasing his projects and experiments.
10 years of coding experience
3 years of employment as a software developer
Systems Engineering, Systems Engineering at Universidad de Oriente (VE)Electromechanical, Electromechanical at INCES
Spanish, English
Stackoverflow
93reputation
11kreached
5answers
11questions
Github Skills (171)
vala10
decompiler10
elliptic-curve10
apng10
java-decompiler10
instrumentation10
decompile10
vaadin-flow10
esp3210
jar10
puzzle10
elliptic-curve-cryptography10
java-bytecode10
animated-gif10
secp256k110
Programming languages (12)
Github contributions (5)
rucko24/EspFlow
Jul 2024 - Mar 2025
Simple UI for esp32+, esp8266 utilities
Contributions:28 PRs, 262 pushes, 67 branches in 8 months
dockeresp32esp8266esptooljava
rucko24/MVP
Mar 2016 - Feb 2018
Contributions:89 pushes, 2 branches, 2 comments in 1 year 11 months
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