Pragma S.A. • Dec 2025 – Feb 2026

• 🐳 Deployed microservices with Docker on Amazon ECS (ECR + ALB)
• ⚡ Built reactive microservices with Spring WebFlux sustaining sub-250ms p99 latency under peak load (k6 tests)
• 🛠️ Designed serverless async solution via IaC (CloudFormation / Serverless Framework) with Lambda, SQS, SNS + DynamoDB
• 🟣 Adopted Kotlin coroutines for non-blocking I/O in new service modules

Nelumbo Consultores S.A.S • Jun 2025 – Dec 2025

• 📈 Reduced p99 latency ~80% (1.8s → <360ms) for SURA financial sector APIs
• 🔄 Migrated notifications to Apache Kafka event-driven model
• 🔐 Implemented Hexagonal Architecture with AWS (S3, SES, Cognito) + API-First (OpenAPI)
• 📡 Set up distributed observability with OpenTelemetry + Prometheus/Grafana
• ✅ 80% test coverage tracked by JaCoCo, quality gates via SonarQube

Bomberos de Villa del Rosario • Jan 2025 – Jun 2025

• 📍 Mapped 50+ real-time data points via Google Maps API, cutting response time by 45%
• 🔌 Developed biometric authentication microservice over TCP/IP sockets, improving access-control efficiency by 90%

Calz. Brander • Feb 2021 – Sep 2023

• 🏗️ Built and maintained e-commerce platforms with Spring Boot for footwear retail businesses
• 📦 Managed full product lifecycle over 2+ years of operation

Modular Platform · Legacy Migration

Progressive monolith-to-microservices migration platform, zero downtime:

• 🌐 Configurable HTTP proxy with per-endpoint percentage routing
• 👥 Shadow Mode + Response Diff Engine (JSON/XML comparison)
• 🚩 Custom Feature Flags engine (by tenant, module, schedule)
• 🔄 CDC via Debezium + Kafka for bidirectional data sync
• 📊 Migration dashboard with diff score trends & auto-rollback

Stack: Spring Cloud Gateway · PostgreSQL · Kafka · Debezium · Next.js

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3-Microservice Event-Driven System

Illegal mining activity registry with distributed architecture:

• 🔐 Dedicated IAM microservice (JWT + RBAC)
• 📡 Kafka async events + immutable audit log (append-only PostgreSQL)
• 🌿 MongoDB for notifications · S3 for secure file storage
• 📈 Full observability: Prometheus + Grafana dashboards
• 🔥 k6 load tests: p99 stable at 500 VUs

Stack: Spring Boot · Kafka · PostgreSQL · MongoDB · Docker Compose

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Distributed Tracing · Saga Pattern

Microservices testbed for enterprise-grade observability:

• 🧵 Orchestrated Saga with custom header propagation (X-Saga-Id, X-User-Id)
• 📊 Prometheus + Grafana: p95 latency, error rates, business KPIs
• 🔍 OpenTelemetry + Jaeger end-to-end distributed tracing
• 📋 Structured JSON logging with MDC correlation (ELK-ready)
• 🐕 Datadog APM via OTLP — zero business logic modification

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Hexagonal Architecture · API-First

Complete food court platform (Pragma bootcamp):

• 👥 Auth service: RBAC (admin, owner, employee, customer)
• 🍕 Order workflow with state transitions + business rules
• 📋 Immutable audit trail in MongoDB
• 📲 SMS notifications via Twilio API

Stack: Spring Boot · PostgreSQL · MongoDB · Twilio · Docker

Repo 1 Repo 2 Repo 3 Repo 4

5 AWS Services · 21 REST Endpoints

Enterprise-grade cloud system with full AWS integration:

• ☁️ S3 (file upload + auto thumbnails + pre-signed URLs)
• 🔐 Cognito JWT validation via Spring Security OAuth2
• 📧 SES templated emails with Thymeleaf
• 📖 OpenAPI documentation · 4 Maven modules

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Spring WebFlux · Hexagonal · 5 Services

Reactive enrollment system (Pragma):

• ⚡ Spring WebFlux with full non-blocking I/O
• 🗄️ PostgreSQL + MongoDB (polyglot persistence)
• 📊 Analytics reports module
• 🏗️ Hexagonal Architecture across all services

Repo 1 Repo 2 Repo 3 Repo 4 Repo 5

Hybrid Microservices · Production

Real security system deployed for fire department:

• 🔌 TCP/IP socket biometric communication
• 📍 Google Maps API (50+ real-time data points)
• 🎯 90% access-control efficiency improvement
• 🐳 Dockerized on Fedora Linux

View Repo → · Demo →

Multi-tenant Architecture

Advanced parking management:

• 🔑 JWT multi-device authentication
• 👥 Role-based access control
• 🔄 RabbitMQ async email service
• 📈 Analytics & reporting

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