Emiliano Nataren Del Rivero

Full Stack Developer

Backend Developer with 3+ years of experience in Application/Production Support, building scalable systems (Java/Spring, Python, NestJS), and event-driven architectures (Kafka, WebSockets). Proven track record in deploying AI-powered solutions used by 300+ companies, including Fortune 500 clients.

developer.nataren@gmail.com

+52 961 449 7858

Tuxtla Gutierrez, Chiapas - 29040, Mexico

github.com/EminatarenX

Experiencia Profesional

Backend Developer

Nov 2025 - Present

McDonald's Corporation

Onboarding: Currently familiarizing with the technical ecosystem and development processes.

JavaSpring BootAWS

Backend Developer

May 2025 - Nov 2025

Grupo Salinas (Elektra)

Template Optimization for Marketplace Sellers: Migrated Excel generation service from Apache POI XSSF to SXSSF, enabling dynamic window sizing and disk streaming for large datasets.
Performance Improvement: Reduced template generation time from 70s to 18s when handling 300K+ rows, without increasing container memory allocation on Tomcat JVM.
Production Impact: Released to production within the first weeks of onboarding, ensuring sellers can download product templates faster and with higher reliability.
Result: Eliminated memory-related errors and improved user experience without additional infrastructure costs.

Java (8–21)Spring Boot 3.5+OracleApache POI

Semi-Senior Backend Developer

May 2024 - Apr 2025

E-Bitware

Conversational AI System: Designed a Python-based (Flask/FastAPI + AsyncIO) backend integrated with Claude API and LangChain, improving NLP accuracy by 40% for WhatsApp campaigns.
Microservices Architecture: Built 5 Java Spring Boot services with Kafka, reducing latency by 30% through Redis caching and MongoDB transactions.
Kubernetes Deployment: Orchestrated DEV/QA/PROD environments on AWS (EC2, S3), cutting cloud costs by 22% via auto-scaling.
Impact: Solution deployed by 300+ enterprises (e.g., Liverpool, Banxico) to automate 50K+ monthly customer interactions.

Spring BootFlaskKubernetesOracle DBKafka

Backend Developer

May 2023 - Apr 2024

Neurotry

WhatsApp Automation: Developed backend services integrating WhatsApp Cloud API, boosting user engagement by 35%; used Spring Boot (Java) for core orchestration and NestJS/TypeScript for campaign-specific endpoints.
Offline Catalog: Created a low-bandwidth solution for SMEs, expanding reach to 1.5K users in 3 months.
AI Model: Built a Google AI-powered chatbot presented at OpenMINDFest2023 (CUTonalá).

Java 17Spring BootNestJSTypeScriptWhatsApp Cloud API

Backend Developer

May 2022 - Apr 2023

HighTech Process Counselors

Web Catalog Backend: Laravel/MySQL application with an admin panel that reduced manual tasks by 20%.
Auth Middleware: Implemented JWT-based access control, eliminating 3 critical security vulnerabilities.
Spring Services: Developed backend microservices using Java 17 and Spring Boot 3+, integrating business logic with MySQL databases.

LaravelMySQLJWTJava 17Spring Boot 3+

Educación

B.S. in Software Engineering

Sep 2022 - Jul 2025

Universidad Politécnica de Chiapas

Suchiapa, Mexico

Cursos relevantes: Cloud Architecture, Microservices Design, Cybersecurity

Habilidades

Languages & Frameworks

Java (Spring Boot)Python (Flask/FastAPI)TypeScript (NestJS)PHP (Laravel)

Cloud & DevOps

AWS (Fargate, ECS, Lambda, S3, CloudWatch, Secrets Manager)KubernetesDockerJenkins (CI/CD)NginxUnix

Databases

Oracle DBMongoDBPostgreSQLRedisMySQLSQL

Event-Driven & APIs

KafkaSQSWebSocketsRESTGraphQLWhatsApp Cloud APIStripe

Healthcare & Standards

PACSHL7FHIRMedical Data Interoperability

Methodologies

AgileApplication/Production SupportMicroservices Architecture

Certificaciones

AWS Academy Cloud Architecting
AWS2024
OpenEDG English for IT (C1)
OpenEDG2023
Cisco Cybersecurity Essentials
Cisco2023

Idiomas

EspañolNativo
InglésC1 (Avanzado)