Backend Developer — APIs, databases, and the Linux servers they run on
Santa Cruz, Bolivia 🇧🇴 · UTC−4 · English C1 · Open to remote
I build backends end-to-end: ASP.NET Core APIs with Clean Architecture, the SQL databases behind them, and the Ubuntu / Nginx / systemd setup that keeps them running in production. Three of the systems below are live and used daily by an entire university. When a project needs a frontend, I ship that too with Angular.
🏆 ICPC South America South Finals 2025 · 🎓 Systems Engineer, UEB (2026) · 📜 Full Stack Postgraduate Diploma, UNIVALLE
Backend
Frontend
Data & Messaging
Infrastructure
Also working with: SQL Server · Entity Framework Core · Dapper · Informix (ODBC) · JWT · Keycloak · Hangfire · Flyway · SonarQube · Node.js / Express · Scrum (Jira, Confluence)
| Project | What it does | Stack |
|---|---|---|
| Student Portal | Grades, enrollment and financial records for the university's entire student body | ASP.NET Core 8 · Dapper · Informix (ODBC) · Linux |
| Event Management | QR-based registration and check-in for university events | ASP.NET Core · EF Core · SQL Server · Hangfire |
| Library System | Catalog search, loan requests and borrowing history for students, plus a role-restricted back office where librarians manage books, copies, loans and suspensions | ASP.NET Core · Dapper · PostgreSQL (PL/pgSQL) · JWT · RBAC |
| SmartQ | Virtual queue management for online and in-person customer service, built by an 8-person Scrum team | Spring Boot 3 · Spring Modulith · PostgreSQL · Kafka → Firebase |
| Epidemiological Map | Geolocated disease-case tracking with heat-map visualization for health authorities | ASP.NET Core · EF Core · MySQL · JWT · Firebase |
| GIS Mapping | Public viewer of Santa Cruz's protected natural areas, built for the Departmental Government | Angular · Leaflet · GeoJSON |
The UEB systems were built in-house — their source lives in private institutional repositories. Happy to walk through the architecture on a call.
- Building Store API — a sales-management REST API on ASP.NET Core 10, EF Core 10 and PostgreSQL, with a layered architecture, FluentValidation, RFC 9457
ProblemDetailserror handling, and OpenAPI docs served through Scalar - Wiring its delivery pipeline: GitHub Actions for CI, and a self-hosted Jenkins job that builds, migrates and updates a
systemdservice on Fedora on every tag - Growing toward DevOps — containers, pipelines, and infrastructure automation
- Open to backend, full-stack and DevOps roles
