About Andrés
Senior Software Architect & Full-Stack Engineer with 20+ years of experience delivering mission-critical systems across banking, insurance, airline, and fintech sectors.
Backend (primary stacks):
Java: Spring Boot, Spring Framework, J2EE, Quarkus, Apache Camel
Python: FastAPI, asyncio, LangChain, LlamaIndex, Kafka/Faust, RAG, LLM integration
.NET: C#, ASP.NET Core, Minimal API, Web API
Frontend:
Angular (up to v21), React, Vue.js — TypeScript, component architecture, REST/GraphQL
AI & LLM: RAG pipelines, vector databases, agentic workflows, MCP, OpenAI, Anthropic
Integration & Architecture:
API design (REST, SOAP, GraphQL, gRPC), Event-Driven Architecture, Apache Kafka, RabbitMQ, Debezium
Patterns: Hexagonal, DDD, TDD, Saga, CQRS, Event Sourcing, Vertical Slice, Modular Monolith
Cloud & DevOps:
AWS (EKS, MSK, Lambda, API Gateway), Azure (AKS, Functions, Container Apps, API Gateway)
OpenShift, Kubernetes, Docker, CI/CD (GitHub Actions, Jenkins, GitOps), Terraform
Also experienced with Node.js, Go, and PHP for backend and integration scenarios.
Fully remote · Spanish & English.
English
Fluent
Spanish
Native or bilingual
Remote only
Primarily works remotely
Experience
- Santa Lucía SegurosSoftware ArchitectSOFTWARE PUBLISHINGAugust 2025 - June 2026 (10 months)Valencia, SpainWorked as Software Architect for Santa Lucía's corporate applications division, designing and evolving backend services and integration layers across Java and .NET stacks in a regulated insurance environment.
- Architected microservices using Spring Boot and .NET Core, applying Hexagonal Architecture and DDD patterns to ensure clean domain boundaries and long-term maintainability
- Designed and implemented REST and SOAP API integrations with internal and external systems, following contract-first API design principles
- Built and evolved middleware integration layers using Apache Camel and messaging with Kafka and ActiveMQ
- Led technical decisions on CI/CD pipelines, code quality standards, and deployment on OpenShift
- Collaborated directly with product and business teams in Agile/Scrum ceremonies, translating requirements into technical designs and implementation plans
- NESTLÉ / NESPRESSOIntegration & Backend ArchitectSOFTWARE PUBLISHINGFebruary 2025 - February 2026 (1 year)Valencia, SpainWorked as Integration and Backend Architect on the Rubicon platform, Nestlé's B2B e-commerce solution for Nespresso professional clients. Responsible for backend architecture, API design, and integration with third-party systems across a high-traffic enterprise environment.
- Designed and implemented REST API integrations between Rubicon and external logistics, payment, and ERP systems, applying contract-first API design with OpenAPI specifications
- Architected backend microservices in Java Spring Boot and Python, handling order management, product catalog, and client account workflows
- Designed event-driven communication patterns between platform services using Kafka and AWS messaging services
- Led architecture decisions on cloud infrastructure (AWS), container deployments, and CI/CD pipelines
- Worked in a distributed international team following SAFe agile methodology, reporting to senior stakeholders and coordinating cross-functional delivery
- FENORAFounder & AI Backend ArchitectSOFTWARE PUBLISHINGFebruary 2025 - Today (1 year and 5 months)Valencia, SpainFounded and architected FENORA, a B2C personal finance SaaS powered by AI, built on Open Banking PSD2 infrastructure. Designed the full backend and AI layer from scratch with production-grade reliability as a core requirement.
- Designed and implemented RAG pipelines for personalized financial advice, combining vector search with real user transaction context
- Integrated multiple LLM providers (OpenAI, Anthropic Claude) with fallback strategies and cost optimization
- Built embeddings workflows using vector databases (Chroma, Pinecone) for semantic search over financial documents
- Developed an agentic AI financial advisor (Sofía) using LangChain, LlamaIndex, and MCP for structured tool use
- Python backend with FastAPI, async/await, Pydantic, and OpenAPI contracts
- Deployed on AWS: Lambda, API Gateway, ECS, RDS (PostgreSQL), with CI/CD via GitHub Actions
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Education
- Ingenieria en TelecomunicacionesCorporación Universitaria de Colombia IDEAS2009