Jairo Hernandez

Rising Codementor

US$10.00

For every 15 mins

ABOUT ME

TypeScript Engineer with over 7 years of experience

As a senior Front-End Software Engineer with over 6 years of experience, I’ve had the opportunity to lead teams in migrating and modernizing critical business applications. My strength lies in making high performing, extensible solutions using modern tools like React, Next.JS, TypeScript, and others. Combining a background in Physics, a solid technical foundation, & best practices, I excel at tackling challenges head-on. Enjoy creating great products with great teams.

Spanish, English

Central Time (US & Canada) (-05:00)

Joined March 2024

EXPERTISE

6 years experience

7 years experience

7 years experience

6 years experience

5 years experience

5 years experience

5 years experience

REVIEWS FROM CLIENTS

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EMPLOYMENTS

Software Engineer

Workhands

2022-12-01-2024-03-01

Revitalized the core business app, enhancing performance and UI, facilitating a smoother apprenticeship and job board experience ...

Revitalized the core business app, enhancing performance and UI, facilitating a smoother apprenticeship and job board experience across Android, iOS, and web platforms. Worked on the full stack with React & Ruby on Rails.
Spearheaded the development of a pivotal tool, reducing PIRL report error reso- lution time by 50%, boosting operational efficiency for apprenticeship programs.
Implemented maintenance protocols for the React app for better CI/CD.

Ruby

Ruby on Rails

Elasticsearch

Ruby

Ruby on Rails

Elasticsearch

TypeScript

Sidekiq

React

Redux

Front End Engineer

Veryable

2021-08-01-2023-03-01

Enhanced two critical React applications, leading to a 30% improvement in load times and a 20% increase in user engagement for th...

Enhanced two critical React applications, leading to a 30% improvement in load times and a 20% increase in user engagement for the business analytics and portal apps.
Directed the seamless migration and redesign of two React applications to Next.JS, standardizing best practices and reducing maintenance overhead by 40%.
Facilitated the transition of app maintenance to dedicated teams, ensuring long- term sustainability and continuous improvement, with a focus on user-centric updates.

Node.js

PostgreSQL

TypeScript

Node.js

PostgreSQL

TypeScript

Sequelize

React

GraphQL

Apollo

New Relic

Cypress

Redux Toolkit

Express.js

Software Engineer

Goodfocus

2021-04-01-2021-08-01

Developed decision-making game using React, TypeScript, GraphQL, Apollo, MongoDB, boosting nonprofit event engagement by 25%.</li...

Developed decision-making game using React, TypeScript, GraphQL, Apollo, MongoDB, boosting nonprofit event engagement by 25%.
Integrated cutting-edge features enhancing interactivity and user satisfaction.
Established dynamic update and feedback loop for continuous game improve-ments based on user input.

Node.js

MongoDB

Mongoose

Node.js

MongoDB

Mongoose

TypeScript

React

Jest

GraphQL

Apollo

Tailwind css

Redux Toolkit

Express.js

PROJECTS

My Personal Website!View Project

2024

Recently built from scratch! Still much work to do, and more projects to add, but I'm proud of how it's turned out so far!

TypeScript

React

Framer motion

TypeScript

React

Framer motion

Chakra UI

Cenit BankView Project

2024

Securely manage and transfer funds between your linked accounts. Connect any banking account using Plaid, and securely transfer funds bet...

Securely manage and transfer funds between your linked accounts. Connect any banking account using Plaid, and securely transfer funds between connected accounts using Dwolla.

HTML/CSS

Node.js

TypeScript

HTML/CSS

Node.js

TypeScript

React

JavaScript

Sentry

Next.js