N ı. co

Araya

Full Stack Developer

About

I'm a Full-Stack Developer with 4 years of experience building tools and applications that solve real-world problems. I enjoy collaborating with teams to create solutions that balance technical rigor with user needs, whether that's improving workflows, enhancing security, or experimenting with machine learning.

My recent work includes designing recommendation systems and automating processes.

Outside of work, I love spending time with my family and friends, improving my culinary skills and learning new things. I enjoy simple things like a good cup of coffee and listening to music.

Experience

Mid Full-Stack Developer

DAAily Platforms 2023 - Present

  • Led architectural design and the implementation of a Recommender System serving personalized content to 230k+ daily users, leveraging Python, LightFM, and BigQuery.
  • Automated article submission and publishing workflows, reducing manual effort by 30% for internal and external users.
  • Enhanced application security by migrating to Rails Credentials and implementing GitHub Secrets for sensitive data management.

Software Development Team Lead

Romero y Asociados 2022 - 2023

  • Led a team of 3 developers, defining project priorities and ensuring on-time delivery of high-quality products.
  • Designed and implemented a CI/CD pipelines to automate testing and deployment.
  • Built 3 internal web applications (Ruby on Rails, Node.js, React.js) that reduced operational redundancies and saved 15+ hours/week.
  • Collaborated with non-technical stakeholders to translate business needs into actionable technical roadmaps.

Jr. Software Engineer

Romero y Asociados 2021 - 2022

  • Partnered with a senior engineer to design a workflow automation tools using Ruby on Rails and PostgreSQL, resolving critical bottlenecks.
  • Created wireframes and mockups using Figma for a company-wide workflow management system, ensuring alignment with user requirements.

Education & Certificates

4Geeks Academy

Full Stack Software Development 2021

Focus: Ruby, JavaScript, React.js, Node.js, SQL, and agile methodologies.

HarvardX (edX)

CS50x: Introduction to Computer Science 2021

Key topics: Algorithms, data structures, C, Python, and web development fundamentals.

The Odin Project

Full Stack Ruby on Rails Development 2021

Key topics: Object-oriented design, RSpec, data structures, relational databases, MVC design pattern.

Focus: Ruby, Ruby on Rails, MySQL, RSpec, JavaScript, HTML, CSS.

Tech Stack

Frontend

React.js

HTML5

CSS3

JavaScript

Figma

Backend

Ruby on Rails

Node.js

Python

Express.js

Flask

DevOps & Cloud

AWS

Docker

GitHub

PostgreSQL

MongoDB