Hola! I am Jonathan Martinez

Web Developer

Portfolio

Javascript Calculator

HTML | SCSS | JAVASCRIPT | REACT
This is a calculator that carries out simple functions using Javascript it also utilizes the useRef hook.
Drum Machine

HTML | SCSS | JAVASCRIPT | REACT
The drum machine uses "onClick" and "key" events to play drum-set sounds from an external website.
Budgety

TYPESCRIPT | REACT | NEXTJS | MONGODB
This is a full stack budgeting app that is ready for use. I built the NextJs backend utilizing MongoDB to store data. This app features CRUD capabilities on all transactions, authentication, and organization of monthly budgets.
Mars Rover App

REACT | RECOIL | MATERIALUI | SCSS
The Mars Rover App connects to the Mars rover API at Nasa to generate pictures of the Mars surface based on user input. It uses recoil to manage its global state and MaterialUI to streamline the user's experience. This project is still under construction.

Skills

HTML5
CSS
Sass
JavaScript
TypeScript
React
Redux
Recoil
Nestjs
PostgreSQL

About Me

I'm a dynamic Front-end React Developer with a unique background in education, bringing transferable skills such as communication, punctuality, ingenuity, and tenacity to my work. I specialize in writing clean, succinct code to create vast projects and enjoy the design aspect of web development. As a curious learner, I am constantly expanding my skills and knowledge in new technologies.

During my time in the industry, I have evaluated CMS frameworks, presented my findings to the team, and contributed to the implementation of a migration plan to a new framework. I take pride in solving problems and increasing process visibility, as demonstrated in my work on an internal tool for a module-based CMS application, resulting in time savings of 10-20 minutes.

I am an expert in A/B experiments, funnel metrics optimization, and process visibility. I have effectively managed experimentation infrastructure with LaunchDarkly, building multivariate and mutually exclusive experiments, and managed a custom SDK. Utilizing React with TypeScript, I have developed responsive design experiments and effectively monitored A/B and split-url experiments with VWO, leading to notable enhancements in conversion rate and funnel engagement by 16.37% and 5%, respectively. One of my proudest achievements has been leading the initiative to switch from VWO to Launchdarkly, which provided better control over experiments by enabling the ability to turn flags on and off.

Contact

Jonathan Martinez

Front-end Developer

Jmartinez070589@gmail.com