Alejo Ceballos
Senior Java Software Engineer at Aubay Portugal
Porto, Porto, Portugal
Summary
👤
Senior🎓
Top SchoolAlejo Ceballos is a Senior Java Software Engineer with 28 years of programming passion and over two decades of professional experience building backend systems, microservices, and data integration platforms. Based in Porto, he specializes in Java-centric architectures, event-sourced long-running processes, and performance-conscious designs using tools like Apache Pulsar, Pekko (Akka fork), Protobuf, Docker, and cloud-native databases. He consistently applies SOLID, Hexagonal and Clean Architecture principles, drives 100% test coverage with automated pipelines (JUnit5, Testcontainers, Cucumber) and advocates code quality via SonarQube and rigorous PR reviews. Comfortable in multilingual, distributed teams, Alejo has led technical interviews and taught Design Patterns and ORM in university courses, blending mentoring with hands-on delivery. His career spans telecom, analytics, gaming, and SaaS, moving fluidly between backend, occasional frontend maintenance, and team leadership roles. An engaging technologist with a long-lived curiosity, he keeps a detailed personal and informal record of his work on GitHub.
11 years of coding experience
19 years of employment as a software developer
Business Degree (Lato Sensu) Software Engineering, Business Degree (Lato Sensu) Software Engineering at Universidade SalvadorBachelor Degree Computer Science, Bachelor Degree Computer Science at Universidade Federal da ParaíbaBusiness Degree (Lato Sensu) Agile Project Management, Business Degree (Lato Sensu) Agile Project Management at CESAR School
English, Spanish, Portuguese
Stackoverflow
491reputation
61kreached
2answers
0questions
Github Skills (20)
intellij-plugin7
tomcat6
eclipse6
jpa6
playframework6
jetbrains-ides6
cascade6
java6
intellij6
webstorm5
plugin5
ember-cli5
minecraft5
emberjs3
ember3
Programming languages (4)
Github contributions (5)
alejoceballos/tellersdesk-app
May 2019 - Oct 2019
Story Teller RPG's (nWoD) manager to aid story tellers around the world
Contributions:30 commits, 34 pushes, 1 branch in 5 months
reactrpgaidtellerreactjs
alejoceballos/jack-ketch-4-flow
Feb 2015 - Jul 2015
Contributions:66 commits, 65 pushes, 1 branch in 5 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.