Backend Developer & Data Analyst focused on Java, Python and SQL.
I build backend systems, REST APIs, ERP integrations and data pipelines used in real business environments.
Currently working across Java backend development, data analysis with Python, SQL & ERP data extraction and process automation.
📍 Camaquã, RS — Brazil
💼 Backend Developer & Data Analyst
- Python (Pandas, NumPy, PySpark)
- SQL — PostgreSQL, MySQL, IBM DB2
- Exploratory Data Analysis (EDA)
- Data cleaning, transformation & pipeline automation
- Dashboards & KPI reporting
- XML data extraction & analysis
- Java 21
- Spring Boot
- Spring Data JPA / Hibernate
- Spring Security
- REST APIs
- JWT Authentication
- Swagger / OpenAPI
- Microservices
- RabbitMQ
- API Gateway
- ERP Integration (IBM DB2)
- Docker / Docker Compose
- PostgreSQL
- MySQL
- IBM DB2
- H2
- MongoDB
- Docker
- Git
- Linux
- Flyway
- Python (OpenCV — computer vision)
- PHP (Laravel)
- TypeScript (basic)
- JavaFX (desktop apps)
Desktop application for automated analysis of order XML files, inconsistency detection and operational report generation.
Highlights:
- Automated XML parsing and data extraction
- Business rule validation and inconsistency detection
- Structured report generation
- Process automation replacing manual review
Repository:
Bartz-Analyser
Secure REST API built to integrate modern applications with a legacy ERP system using IBM DB2, providing clean and standardized data access for analytics and internal dashboards.
Highlights:
- REST API endpoints for internal data queries and analytics
- API Key authentication
- Swagger / OpenAPI documentation
- Docker support
Repository:
API-Bartz-Moveis-ERP
Microservices-based e-commerce platform built with Spring Boot and distributed architecture concepts.
Highlights:
- Product, Order, Inventory and Payment services
- RabbitMQ asynchronous communication
- API Gateway and Service Discovery
- JWT authentication
- PostgreSQL and Docker Compose
Repository:
Spring-Microservices-Ecommerce
REST API for recipe management with authentication, authorization and PostgreSQL persistence.
Highlights:
- JWT-based authentication
- Secure CRUD operations
- PostgreSQL integration
- Swagger documentation
- Dockerized environment
Repository:
LivrodeReceitas-JavaSpringBoot
Computer vision solution developed for a social project, involving image data collection, processing pipeline and result reporting.
Highlights:
- Facial recognition with OpenCV
- Image data pipeline
- Result analysis and reporting
- Data Analysis with Python (Pandas, NumPy, PySpark)
- SQL & ERP data extraction and pipeline automation
- Java and Spring Boot
- Microservices Architecture
- API Design and Secure Backend Development
- Docker and Scalable Deployments
- Email: robertokantovitzlara@hotmail.com
- LinkedIn: linkedin.com/in/robertokantovitzlara
- Portfolio: portfolio.jsatecsistemas.com.br
- GitHub: github.com/betolara1
Some of my main public projects are pinned below, with focus on:
- Data analysis and Python automation
- Java backend development
- Spring Boot APIs
- Microservices
- ERP integration
- Security and architecture