Rodrigo Amarilla

Backend engineer who ships. I design, build and run REST APIs and microservices, and I take them to production on AWS with Terraform, Kubernetes and CI/CD. I have worked on a production B2B backend in Java and Spring Boot, and I build my own services in NestJS and FastAPI with real test suites and pipelines. I care about typed code, a schema before the endpoints, and infrastructure that can be redeployed without drama.

Backend Engineer at NÓRDICO (2026-07 – 2026-10)

• Built the authentication microservice in Java 25 and Spring Boot 3.5: unified login issuing JWT (HS256), refresh-token rotation, BCrypt cost 12, OAuth2 resource server, rate limiting, and role-based access control across five roles.
• Modelled the relational domain in PostgreSQL 15 with versioned Flyway migrations: orders, stock, equipment, rentals and visits with photographic evidence and traceability.
• Hardened the live API: mapped 4xx responses that were surfacing as 500, cut the order listing’s date filter and closed-history payload, and fixed a listing that crashed on lower(bytea) in PostgreSQL.
• Owned the deployment path: multi-stage Docker images, healthcheck against the platform-assigned port, per-environment CORS, and Railway and Render manifests.
• Worked with Spec-Driven Development (OpenSpec): every module opens with a proposal, spec, design and task breakdown before code is written.
• Strict TDD with JUnit 5, Mockito, @WebMvcTest, security integration tests and H2; API documented with OpenAPI 3.1 and realtime updates over WebSocket.

Backend Developer (Professional Practice) at Instituto Politécnico Formosa (2025 – 2025)

• Three placements on client projects, with an average grade of 9.66 out of 10: backend development and deployment, data modelling and frontend integration.

BSc in Data Science – University of Gran Rosario (2026)

Higher Technical Degree in Multiplatform Software Development – Instituto Politécnico Formosa (2022 – 2025)