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Fabian Mateo Beltran Valencia

@fabianmateobeltranva

Development Solutions Engineer building scalable cloud microservices and integrating LLMs to automate critical workflows.

Colombia

Message

What I'm looking for

I’m looking for a role where I can build production-grade backend microservices on AWS/Azure, strengthen reliability with DevOps/DevSecOps, and apply LLM automation to improve auditing and decision-making.

I’m a Development Solutions Engineer with 5 years of experience in distributed architectures and cloud computing, specialized in .NET Core and Node.js on AWS and Azure. I build microservices with a strong focus on high availability, scalability, and maintainability, applying SOLID principles and Clean Architecture to keep systems flexible and evolvable.

I’ve implemented event-driven and distributed systems, modeled relational and NoSQL databases for performance and consistency, and managed production cloud resources on AWS and Azure. I also integrated large language models (LLMs) using Azure OpenAI / Azure AI Foundry to automate critical processes, improving decision-making and strengthening business traceability and auditing.

Experience

Work history, roles, and key accomplishments

Development Solutions Engineer

Luegopago / Sistecrédito

Jan 2021 - Jan 2026 (5 years)

Designed and implemented backend microservices using Node.js (NestJS) and C# (.NET Core), applying SOLID and Clean Architecture for maintainability. Managed AWS/Azure production infrastructure with Terraform, CI/CD automation, and integrated LLMs (Azure OpenAI/AI Foundry) to automate workflows and improve business traceability and auditing.

NestJS C# .NET Core Microservices Event Driven Architecture AWS Azure Terraform Azure AI Foundry

Full-Stack Web Developer

Graffigna Comunicaciones Humanas

Jan 2020 - Jan 2021 (1 year)

Developed and supported web applications with Next.js and integrated Python microservice APIs using Django/FastAPI. Managed CRM-related tasks and supported landing page, domain, and hosting operations.

Next.js React Python Django fastAPI CRM Management Landing Page Development API Integration

Backend Tutor

CoderHouse

Jan 2021 - Present (5 years 4 months)

Tutored Commission 365 in backend web development, providing technical guidance and support for learners.

Backend Development Technical Tutoring Code Review Technical Support Student Mentoring

Backend Web Developer

Protalento

Jan 2020 - Present (6 years 4 months)

Built backend projects in Node.js for the HORECA sector using Next.js and Node.js, and supported service availability through distributed AWS architectures. Managed and configured AWS resources and documented backend work for delivery.

Node Next.js API Development AWS Distributed Architecture Availability Technical Documentation Requirements Analysis

Education

Degrees, certifications, and relevant coursework

Graffigna Comunicaciones Humanas

Full-Stack Web Developer, Web Development

2020 - 2021

Activities and societies: CRM management and landing page creation; domain/hosting support; backend API support with Python (Django/FastAPI); frontend support with Next.js; unit testing and observability (logs/metrics); API security; clean code and SOLID principles.

Trained as a Full-Stack Web Developer (2020–2021), covering web and backend development fundamentals across CRM, landing pages, and microservice APIs.