Backend architecture
C#/.NET microservices, GraphQL federation, CQRS, and enterprise API integrations.
- C#
- .NET
- GraphQL
- CQRS
- SQL Server
Rafael Alejo, open to remote roles
Backend architecture that solves the production problem.
Principal Software Architect with 7+ years in C#/.NET, distributed systems, Azure and GCP, and AI agent integrations.
- Role
- Principal Software Architect
- Experience
- 7+ years in software, 6+ in C#/.NET
- Based in
- San Salvador, El Salvador
- Looking for
- Remote roles across Latin America
What I work on
AI agent integrations
Custom MCP servers that connect agents to SQL Server, Azure CLI, and GraphQL.
An agent in my BIOSData-intensive systems
SQL performance tuning and Databricks pipelines.
Cloud and automation
Azure and GCP, automated with Python and PowerShell.
Selected experience
Designed integration layers for transportation and logistics systems.
Led backend engineering for sports analytics platforms.
Guided migrations from .NET Framework to .NET Core microservices.
Writing
Experiments with software and hardware.
Giving Codex access to my BIOS
A hardware experiment with GPT-6 Astra and NanoKVM: mixed RAM, failed boots, and the keyboard sequences that evolved along the way.
About
I care about clear architecture, maintainable code, and solving the production problem. Outside work, I experiment with hardware and write those experiments up here, failures included.
