I am a Software Engineer and FullStack Developer based in Santiago, Chile. I specialize in designing high-performance REST APIs, orchestrating microservices, and optimizing both relational and NoSQL databases. I am deeply passionate about solving complex technical problems, modernizing legacy systems, and building both low-level and high-level Open Source tools.

• ✈️ Turismo Sur — Tourism scheduling system built with a robust backend in FastAPI, a fast NextJS frontend, and PostgreSQL. Deployed using an API REST architecture on Vercel.
• 🌍 Velageo — Enterprise monitoring platform built with NestJS and React. Efficiently deployed on Google Cloud Run (GCR) with automated performance monitoring.

Here are the tools and libraries I am currently building and maintaining:

• 📊 benchcore (Python) — Published on PyPI / Stable A lightweight and extensible benchmarking framework for Python applications and libraries. It provides reusable components for measuring execution performance, running benchmarks, collecting results, and building custom benchmarking workflows.
• 📦 bcch-sdk (Python) - Published on PyPI / In Development A Python SDK designed to streamline the integration, consumption, and structured extraction of macroeconomic data series from the Central Bank of Chile (Banco Central) official API.
• 🛠️ rut-validator (Python) - Published on PyPI / In Development An open-source library for validating and formatting Chilean RUTs. Distributed officially via PyPI to simplify form validation and data compliance in local software systems.
• 🦀 bmp (Odin) - Low-Level / In Development A native library written in Odin for low-level image file manipulation (BMP). It currently implements the core parser, binary reader, and automated unit testing suite, with upcoming decoder modules.

Angular NextJS React TypeScript HTML5/CSS3 SCSS TailwindCSS Bootstrap Material Design

Python FastAPI NestJS NodeJS Odin Kotlin REST APIs Microservices Redis

PostgreSQL SQL Server MySQL Firebase MongoDB

Docker Kubernetes AWS GCP (Cloud Run) Vercel NGINX Git CI/CD Linux (Bash)

• 💻 Independent FullStack Developer: Managing end-to-end cloud architectures, automating deployments, and building modern, high-performance backends with FastAPI and NestJS.
• 🏛️ Software Analyst at the Financial Analysis Unit (UAF): Migrated obsolete legacy systems and scripts into clean, structured Python solutions, boosting web performance by 55% and report processing times by 65%.

If you want to collaborate on an open-source project, discuss low-level systems or software architecture, or chat about a career opportunity, feel free to reach out!

• 💼 LinkedIn: Technical Profile
• 📧 Email: ramirez.ruiz.eliezer.reuven@gmail.com
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• 🌐 Location: Santiago, Chile