Sebastián Hernández

Software developer / Frontend & Backend developer

Passionate software developer with 2.5 years of experience, specialized in creating web applications and websites. With a commitment to quality and a focus on user experience, I strive to deliver solutions that not only meet but exceed client expectations.

Career

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ReadyChatAI

Remote

Jan. 2025 - Jul. 2025

I worked at ReadyChatAI as a frontend web developer, designing and developing user interfaces and complex features with React.js and Next.js, along with other tools for collaborative work such as Git, Github and Jira.
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Freelance

Remote

2023 - Current

I work as a freelance web developer, building stunnishing websites and efficient web applications using the latest technologies suitable for the product.

Projects

ReadyChatAI Dashboard

Worked as a frontend developer on ReadyChatAI, a platform for sales and business management through AI. Developed several sections of the app using Next.js, TypeScript and Tailwind CSS.

Implemented various features like a scheduling assistant for an appointment booking system that I also designed and developed, waveform visualizer for audio attachments to enhance engagement with the customers of every business on the platform, and small components along the page to improve user experience.

Also revamped and improved the design of the platform and landing page, making it more user-friendly and visually appealing. Fixed issues and bugs to ensure a smooth user experience.

ReadyChatAI Platform
SH. Company - Website Layout

One of my various projects as a freelance developer. This is a website layout I designed and developed for a company that provides financial services.

Developed the layout using HTML, CSS and JavaScript, as well as other tools like React.js for interactivity and Tailwind CSS for simpler CSS styling. The website is fully responsive and has a modern design that adapts to different screen sizes.

This website was made as a demostration of the design and aesthetic of the website, and is not the final version of their website. The final product was delivered to the client with all the necessary deliverables and documentation.

Website Layout Showcase

Reviews

Manuel Maldonado

Lead Frontend Developer at ReadyChatAI

Sebastian possesses many of the key traits of a future senior contributor: he is a fast learner, a thoughtful problem-solver, and a diligent and trustworthy team member. The volume and quality of his output in just five months were very strong. He delivers quality code and improves the product and the team around him. He would be a valuable asset to any engineering organization.

Skills

HTML5
CSS
JavaScript
TypeScript
Astro
Node.js
React.js
Tailwind
Next.js
Git
Java
Spring
PostgreSQL
Firebase

Sebastián Hernández

Software developer / Frontend & Backend developer

Career

Projects

Reviews

Manuel Maldonado

Skills

HTML5

CSS

JavaScript

TypeScript

Astro

Node.js

React.js

Tailwind

Next.js

Git

Java

Spring

PostgreSQL

Firebase

Contact