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Alejandro Bettin

@alejandrobettin

Java developer at SMART FINANCIAL SYSTEMS who developed microservices and REST APIs for financial and core banking services.

Colombia

Message

At SMART FINANCIAL SYSTEMS, I developed Java and Spring Boot microservices for a project in the financial and core banking sector. I also designed and implemented REST APIs for enterprise services.

I worked on SQL queries and database structures, and applied Clean Code, SOLID, and design patterns. I wrote unit tests with JUnit and Mockito and used SonarQube to analyze and improve code quality.

At MANGLAR TECHNOLOGY, I developed full-stack web applications using Java, Spring Boot, React, and JavaScript. I integrated REST APIs and external services, and implemented reusable React components and interfaces.

Across these roles, I maintained and supported enterprise applications, contributed to code reviews and testing, and worked with Scrum teams. My experience also includes Docker, production support, and relational databases.

Experience

Work history, roles, and key accomplishments

Desarrollador de Software Semi Senior

Smart Financial Systems

Dec 2024 - Aug 2026 (1 year 8 months)

Developed microservices with Java and Spring Boot under Clean Code principles, designed and implemented REST APIs, and optimized SQL queries. Applied SOLID and design patterns, implemented unit tests with JUnit and Mockito, and improved code quality using SonarQube.

Java Spring Boot REST APIs SQL Clean Code SOLID Design Patterns Junit Mockito SonarQube Docker Scrum

Desarrollador Full Stack

Manglar Technology

Apr 2021 - Dec 2024 (3 years 8 months)

Developed full stack web applications with Java, Spring Boot, React, and JavaScript, integrated REST APIs and external services, and implemented reusable React components. Optimized relational database queries and structures, and collaborated with multidisciplinary teams under agile methodologies.