Java Developer
Luis
Ronquillo
Building reliable Java backends.
Writing about code, career, and life in between.
Java Developer
Building reliable Java backends.
Writing about code, career, and life in between.
Work
A selection of things I've built, mostly with the Java ecosystem.
Recommendation system with sentiment analysis
Master's degree project: a recommendation system that analyzes the emotional state of elderly users to suggest images, songs, and movies that match their feelings.
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Employee management web application
Full-stack web application for employee management built with Spring Boot and Thymeleaf, featuring CRUD operations, role-based access, and persistence with Hibernate.
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Media management REST API
REST API for multimedia content management, including upload, retrieval, and organization of media assets, deployed on AWS with Spring Boot.
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Things I've been thinking about, learning, and writing down.
Habits and tools that actually work
Notes on the productivity methods and tools I've tried as a developer — what helped, what didn't, and how I balance deep work with family life.
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Personal finance from a developer's perspective
Key concepts I've learned about personal finance — budgeting, saving, and investing — explained simply without financial jargon.
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Writing as a thinking tool
Why I started keeping a draft journal and how writing regularly has helped me think more clearly, both in code and in everyday decisions.
Read moreBackground
Java developer with 3+ years of experience building web applications using Spring Boot, Hibernate, Thymeleaf, and AWS. Currently completing a master's degree in computer science, where I've worked on projects involving machine learning and recommendation systems.
Outside of work I read, write, and spend time with my family. I'm a husband and father, and I believe that a balanced life makes for a better developer.
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Cloud & Other