top of page

Resume

Work
Experience

Jul 2020 – Feb 2023

Member of Technical Staff 2
Xoom, a PayPal Service

In this position, I directed high-level design meetings as Tech Lead, liaising with our Product teams to align technical solutions with business objects and long-term strategy. I worked to enhance projects’ clarity and development through transparency in communication. Additionally, I managed our software, hardware, and equipment budget and inventory.

Apr 2019 – Jul 2020

Manager, Software Development
Xoom, a PayPal Service

I directed team members’ task delegation, priority allocation, and project timelines for a team of three, monitoring team sprint velocity and capitalizing on insights gained through extensive analytics to improve project timelines.

Feb 2014 – Mar 2019

Member of Technical Staff 1
Xoom, a PayPal Service

I was a member of a project team of three strategizing system integration with orchestration-layer APIs, built in Node.js and Express.js. We collaborated with Front-end and Back-end teams to merge disparate services into a singular API. 

Education

2005 - --

Universidad Galileo | Bachelor's Degree

Skills
& Expertise

  • Node.js

    • Express.js | Hapi.js

  • Unit Testing (Mocha)

  • ESLint

  • JavaScript

  • PHP

  • HTML/CSS

  • Open API (Swagger)

  • RESTful API

  • GraphQL

  • JSON

  • Docker

  • Redis

  • Git

  • OpenAPI

  • Automation CI

  • Zookeeper 

Certificates

  • TBD

Follow Me

  • LinkedIn
  • GitHub
  • GitHub

© 2026 By Samantha Castillo.
 

bottom of page