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0bustamante/README.md

👨‍💻 About Me:

Full Stack Developer especializado en aplicaciones empresariales Java, procesamiento de datos y arquitecturas backend robustas.

Full Stack Developer focused on enterprise Java applications, data processing, and robust backend architectures.


🇨🇴 Perfil Profesional

Desarrollador Full Stack con experiencia en el desarrollo y mantenimiento de plataformas empresariales basadas en Java, Oracle Database y Apache Tomcat.

Mi trabajo se centra en la construcción de servicios backend, optimización de consultas SQL, integración de sistemas y procesos ETL (Extracción, Transformación y Carga) para el procesamiento de datos.

Áreas principales de experiencia:

  • Desarrollo de aplicaciones empresariales
  • Arquitectura backend con Java
  • Ingeniería de bases de datos (Oracle)
  • Procesos ETL
  • Optimización de consultas SQL
  • Integración de sistemas
  • Evolución y mantenimiento de sistemas legacy

🇺🇸 Professional Profile

Full Stack Developer experienced in building and maintaining enterprise platforms using Java, Oracle Database and Apache Tomcat.

My work focuses on backend services, SQL performance optimization, system integrations and ETL processes (Extract, Transform, Load) for data processing.

Core areas of expertise:

  • Enterprise application development
  • Backend architecture with Java
  • Database engineering (Oracle)
  • ETL pipelines
  • SQL performance tuning
  • System integrations
  • Legacy system maintenance and evolution

🧰 Technology Stack

Backend

Java MyBatis Gradle Tomcat Log4j2


Data & Database

Oracle Postgres

Experiencia en / Experience with:

  • Oracle 10g / 12c Enterprise
  • SQL performance tuning
  • Large dataset processing
  • Stored procedures
  • Reporting queries
  • Data transformation workflows

ETL

  • Extracción de datos desde sistemas transaccionales
  • Transformación y normalización de datos
  • Carga de información en sistemas de reporte
  • Automatización de procesos batch

Data workflows including:

  • Data extraction from transactional systems
  • Data transformation and normalization
  • Loading structured datasets into reporting systems
  • Batch processing automation

🌐 Frontend

HTML5 CSS3 JavaScript

Desarrollo de interfaces web integradas con servicios backend. Web interface development integrated with backend services.


🖥 Development Environment

Operating Systems

  • macOS
  • Linux (Ubuntu)

Development Tools

  • IntelliJ IDEA
  • Visual Studio Code
  • DBeaver

Other Tools

  • Git
  • Markdown
  • Apache Groovy

🧠 Engineering Practices

  • Clean and maintainable Java code
  • Structured logging with Log4j2
  • Environment-based configuration (dev / qas / prd)
  • Database-first architecture
  • SQL performance optimization
  • ETL workflow design
  • Maintainable enterprise systems

📊 GitHub Stats


🌐 Professional Links

LinkedIn


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