👋

Hello, I am

Isabel Sierra

Full-Stack Developer

Telecommunications Engineer

GIS • Big Data • PMP Certified

AWS Certified Cloud Practitioner

Know Who I'm

Creative and curious

Creative and curious

I am an enthusiastic person of new challenges, creative, curious, with more than 8 years of experience in the field of Submarine Telecommunication Cables

Telecommunications Engineer

Telecommunications Engineer

During this 'trip across the oceans', I have had the opportunity to grow professionally solving complex problems and acquiring valuable skills in a multicultural environment.

'Learnability'

'Learnability'

My eagerness to never stop learning and my concern for new technologies has also allowed me to acquire knowledge of cutting-edge technologies, being part of an interesting digital transformation.

Full-Stack Developer

Full-Stack Developer

Currently redirecting and reinforcing my career as a full-stack software developer, with knowledge in Geographic Information Systems (GIS), Data Science and Big Data.

My Creative Portfolio Section

42Born2Code
ArcGIS
Open-Sourced & Deployed
React JS
All

Teamder


Javascript
ReactJs
Bootstrap
Flux
Python
Flask
SQL ALchemy
REST API
Google Cloud Platform
JWT Authentication

Full-stack interactive web application deployed to Heroku, created to connect people looking for teammates to do sports or outdoor activities. A map with an active location allows you to see and join activities near you. The weather forecast based on location and day activity is also displayed, given third-party API integration. A live calendar shows user activities once logged in. It performs CRUD operations for users and activities.

Macramé E-commerce


Javascript
React JS
CSS
Bootstrap
Context
Next.js
Sanity
Stripe
SendGrid API
Vercel

A fully responsive modern full-stack E-commerce application deployed to Vercel with payments functionality. With modern design, animations, the ability to add and edit products on the go using a CMS, all advanced cart functionalities, and also the complete integration with Stripe so that the app can cover real payments. A contact form is also available to submit inquiries.

TecnoStore


Javascript
React JS
Tailwind CSS

The project involves developing an e-commerce website for technology products using JavaScript and React technologies. The website will allow users to browse a wide selection of technology products, including computers, mobile devices, accessories, and other related products.

Submarine Cable GIS


ArcGIS Pro
ArcGIS Server
ArcGIS Portal
ArcGIS GeoEvent Server
Python

Developed from scratch a Geographic Information System for Telxius' submarine cables. Main actions: - Creation of the data model. - Development of applications and dashboards on ArcGIS Portal. - Integration of the applications with other external data sources: such as real-time positioning of ships (AIS), hurricanes, and earthquakes, among others. - User management on the platform

Geoportal ONG


ArcGIS Pro
ArcGIS Online

Geoportal of a non-governmental organization to facilitate the storage and analysis of georeferenced data. Final project carried out as part of the Master of GIS and data science in collaboration with Acción contra el Hambre NGO in 2019.

YouTube Clone App


React.JS
Material-UI
RapidAPI

Built and Deployed a Modern YouTube Clone Application in React JS with Material UI 5

Star Wars Blog


Javascript
Bootstrap
REST API
React JS
Flux

Interactive front-end blog displaying Star Wars universe information. It is connected to his public API to fetch information about characters, planets, and vehicles. A favorite menu is also available to take a quick look later.

Find Your Place


ReactJS
Next.js
Responsive
Fetch API
Google Cloud Platform
Chakra UI
Vercel

Responsive web application for finding nearby places to rest, eat, or go sightseeing. It has a main map and some filters and features that help the user find what they are looking for. It's deployed to Vercel.

Libft


C
Standard Library
String Manipulation
Memory Management
Data Structures
Algorithms

"Libft" is a fundamental C project involving the creation of a custom standard library, providing a robust foundation for C programming. Developed as part of the 42 School curriculum, this library includes essential data structures, string manipulation functions, and memory management routines. The implementation of linked lists and various algorithms showcases my proficiency in low-level programming and algorithmic thinking, making Libft a versatile and indispensable resource for efficient C programming.

ft_printf


C
Variadic functions
Conversion Specifiers

This project involves rewriting the well-known printf C function to gain a better understanding of variadic functions and enhance algorithmic methodology.

Get Next Line


C
File Handling
Memory Management

The goal of this project is to create a function capable of reading lines from a file, ensuring seamless integration in more complex programs. By implementing advanced string processing and memory management techniques, this project showcases my ability to work with low-level file manipulation, ensuring optimal performance and robust code.

So Long


C
Algorithms
2D game
MiniLibx
Data Structures

Mycological Odyssey. This is the So_Long project from the 42 school curriculum. So_Long is a simple 2D game where the player controls a character that must collect items and avoid enemies to win the game. The game is developed in a graphical environment using the MinilibX library.

Push Swap


C
Sorting Algorithms
Data Structures

Push_swap is a high-performance sorting algorithm crafted to arrange a stack of numbers with the minimal set of predefined operations. Project developed in C that allows learning data management and control algorithms in memory (Stack) through the use of lists.

Pipex


C
Unix
Process Management
Makefile
Command Line

Pipex is a project at 42 School designed to reinforce your understanding of Unix processes and command execution. The goal is to simulate the functionality of the shell's pipe operator ('|') by creating a simplified version of it using C programming.

Skills & Experiences

CSS3

CSS3

Bootstrap

Bootstrap

React

React

Git

Git

HTML5

HTML5

Javascript

Javascript

Python

Python

Flask

Flask

C

C

2022 - Curr.

Full-Stack Developer

Freelance

JavaScript · Python · React.js · API REST · Git · HTML · CSS · Jest · SQL · SQLAlchemy · Flask · Bootstrap · GitHub · React Hooks

2017 - 2021

Submarine Cable Senior Consultant

Telxius (Grupo Telefónica)

Responsible for the maintenance of the Telxius Submarine Cables: SAm-1, BRUSA, MAREA, CSRD, UNISUR 2.0, SPSC/Mistral (>50k Km)

2011 - 2017

Submarine Cable External Analyst

Telefónica International Wholesale Services

Managing the maintenance of all company's submarine cables: SAm-1, PCCS, UNISUR 2.0 (~30k Km)

2010 - 2011

Submarine Cable Maintenance Internship

Telefónica International Wholesale Services

Supporting the management of all tasks involved in the SAm-1 submarine cable maintenance (~24k Km).

"I have worked with Isa during the development of the full-stack bootcamp final project. She is a resolutive professional, she always tried to learn the new technologies recquired in order to complete the project. I would count on her for a next project, no doubt!"

Miguel U.

4Geeks

2022

Full-Stack Software Development Bootcamp

4Geeks Academy

HTML5, CSS3, JavaScript, ReactJS, Bootstrap || Python, Flask, MySQL || Git, Github, Jest, API Rest, WebPack, Heroku

2021

Master of Business Administration, MBA

The Power MBA

Blank

2019

Master of Geographical Information System & Data Science

Esri

Geospatial data processing and storage - Data analysis - Task automation - GIS architecture deployment - Web application development - Conferences, Technical Sessions and Final Project.

2017

Master of Big Data and Business Analytics

Universidad Europea Miguel de Cervantes | Telefónica

Traditional data science: Data storage and acquisition. Data analysis and machine learning with R and SQL. Data analysis and machine learning with Python. Data science at Scale: Hadoop Management. Big Data acquisition and storage. Data analysis and Machine Learning with Big Data. Data visualization and communication. Business Analytics Masterclasses. Final Project.
Esri
UEMC
The Power MBA
PMI
Alcala
4Geeks