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- Name: Jesús Valdemar Benítez Castañeda
- Role: Senior Java Microservices Developer
- Location: Guadalajara, Jalisco, MX (Remote Ready)
- Mission: Building scalable, secure, and high-performance backend architectures.
- Status: Open to new challenges in Java 21 / Spring Boot ecosystems.
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Technical Skills
Core Stack
Java 21 & Spring Boot Microservices
Building scalable, resilient backend systems using the latest Java features and Spring ecosystem:
- Clean Architecture (Hexagonal): Model → Repository → Service separation
- Spring Cloud Stream for event-driven microservice communication
- API Documentation with Swagger/OpenAPI 3.0
- 30% faster response times through architectural refactoring
Data Expert
Database & Data Layer Mastery
Expert-level database management spanning relational and NoSQL paradigms:
- Oracle 11g stored procedure optimization meeting DBA standards
- MongoDB for high-throughput unstructured data storage
- SQL Tuning reducing query execution time significantly
- Data migration and ETL pipeline design
DevOps & Quality
DevOps & Code Quality
Ensuring software reliability through automated pipelines and security analysis:
- CI/CD pipelines for automated build, test, and deployment
- SonarQube code quality gates and technical debt tracking
- Checkmarx security vulnerability scanning and remediation
- ITIL incident management with ServiceNow
Python & Data
Python & Data Engineering
Versatile data processing capabilities extending beyond the Java ecosystem:
- FastAPI for high-performance REST APIs
- Pandas for data transformation and ETL
- Automated reporting and analytics pipelines
Professional Experience
Senior Java Microservices Developer
Stefanini Mexico
- Implemented event-driven architectures using Apache Kafka, enabling asynchronous communication and improving system scalability.
- Optimized unstructured data storage with MongoDB, significantly increasing response speeds for high-demand modules.
- Reduced response times by 30% and minimized redundant code by 25% by refactoring legacy endpoints into Clean Architecture (Model-Repository-Service).
- Provided L3 support for microservices utilizing Spring Cloud Stream and Lombok to ensure application flexibility.
- Documented 100% of the architecture using UML and Swagger, effectively reducing developer onboarding time by 25%.
- Spearheaded security vulnerability mitigation through rigorous code analysis with SonarQube.
Senior Java Developer
NTT Data Mexico
- Developed and provided Level 3 support for microservices powering the national bank account registry system, ensuring high availability.
- Implemented Continuous Integration (CI/CD) practices to streamline microservice deployment and improve code quality.
- Performed advanced SQL query optimization in Oracle 11g, tuning stored procedures to meet DBA performance standards.
- Managed critical incidents and changes following ITIL best practices, using tools like ServiceNow and Jira.
Java & SQL Developer
National Electoral Institute (INE)
- Developed specialized SQL queries to optimize the performance of stored procedure packages in Oracle 11g.
- Identified and remediated security vulnerabilities in Java code using the Checkmarx analysis tool.
- Improved and fine-tuned SQL code to ensure compliance with rigorous DBA standards.
Software Developer
Grupo Salinas S.A. de C.V.
- Maintained the codebase of the fiscal system and developed applications for corporate tax calculation.
- Developed complex logic in Oracle 11g stored procedures.
- Identified and fixed security vulnerabilities using SonarQube and Checkmarx.
- Proactively managed services in Linux environments (SCM Server and MongoDB).
Get In Touch
Email [email protected] Phone +52 56 4842 3567
Location Guadalajara, Jalisco, MX
Linkedin @jvaldemar87