Alec Echavarría
Software systems / backend development
About 01 Colombian Projects 02 Software Engineer Based Contact 03 in Medellín
I build APIs, data models, and interfaces that stay understandable as they grow.
Python · Go · C · C#
FastAPI · .NET · SQL
Selected systems (2025 — 2026)
A small archive of systems work, selected for the decisions behind the code: boundaries, ownership, search, and real-time input.
Expense Tracker ↗
API / hexagonal architecture
A finance system shaped around clear boundaries between domain rules and persistence.
- Focus
- domain boundaries / persistence
- Stack
- FastAPI · MySQL · Python
Structure should make complexity feel quiet.
I work at the boundary between structure and use: APIs, data models, and interfaces that remain legible to the people who maintain them.
The details matter most where nobody notices them: naming, boundaries, failure states, and the small decisions that keep a product dependable.
- Focus
- Backend systems
- Tools
- Python · Go · C · C# · SQL
Let’s make the difficult part legible.
Open to internships, thoughtful collaborations, and freelance work where the problem is meaningful and the details matter.