Publication
Finding a Better Framework than Vue.js, React, and Angular
https://www.toptal.com/developers/front-end/tips-and-practices
Alejandro is currently unavailable
Alejandro Hernandez
Verified Expert in Engineering
Serverless Developer
Córdoba, Cordoba, Argentina
Toptal member since October 30, 2012
Bio
Alejandro got his bachelor's degree in software engineering in 2005 and has since been working for software companies of all sizes from all around the globe as a freelancer. Currently, he enjoys working as a full-stack architect in JavaScript projects, where his experience and his deep understanding of architecture and theory are most impactful.
Portfolio
Vidurama
Node.js, JavaScript, HTML5, Web Development, Full-stack, Expo, React Native...
AdsInc
Babel, Serverless, Node.js, JavaScript, HTML5, Web Development, Full-stack...
WhoaStork
Node.js, JavaScript, HTML5, Web Development, GraphQL, React, REST APIs...
Experience
- JavaScript - 20 years
- Node.js - 10 years
- D3.js - 6 years
- React - 6 years
- GraphQL - 4 years
- Serverless - 3 years
- Amazon DynamoDB - 1 year
- Docker - 1 year
Work Experience
Front-end Engineer
2018 - 2018
Vidurama
- Built a simple, high-performance React application.
- Created pixel-perfect designs with styled components.
- Integrated a context API to handle application state.
- Developed a small React Native application (using Expo) as a proof of concept.
- Wrote a custom REST API library with Context API.
Technologies: Node.js, JavaScript, HTML5, Web Development, Full-stack, Expo, React Native, React, TypeScript, REST APIs, RESTFul APIs, Data Analysis
Solution Architect
2017 - 2018
AdsInc
- Provided server-side rendering with React and AWS Lambda and AWS API Gateway to reduce cost from idle server time.
- Implemented GraphQL Data Loader for Postgres SQL tables to reduce DB load.
Technologies: Babel, Serverless, Node.js, JavaScript, HTML5, Web Development, Full-stack, GraphQL, React, AWS Lambda, Architecture, CTO, TypeScript, REST APIs, Serverless Architecture, Vite, Amazon Web Services (AWS), RESTFul APIs, Data Analysis, PostgreSQL, Next.js
Front-end Engineer
2017 - 2018
WhoaStork
- Created the admin application of the web store in React.
- Replaced Redux with Apollo Client for GraphQL against a Ruby back-end.
- Created a HOC architecture to reuse common GraphQL functionality for listing and filtering.
- Created our own custom UI library with styled components.
- Used HOC for form manipulation.
Technologies: Node.js, JavaScript, HTML5, Web Development, GraphQL, React, REST APIs, RESTFul APIs
JavaScript Front-end Engineer
2016 - 2016
DBMS Insight
- Worked with a React/Redux environment on a major enterprise product already in production.
- Helped integrate charts libraries based on D3 and React.
Technologies: Babel, Node.js, JavaScript, HTML5, Web Development, D3.js, Redux, React, REST APIs, Amazon Web Services (AWS), RESTFul APIs, PostgreSQL
Full-stack JavaScript Engineer
2015 - 2016
Globa.li
- Created a new front-end app based on React and Redux.
- Added a Hot module replacement plugin to Webpack.
- Worked with legacy code on the server side, able to understand the principles behind it and make it work again.
Technologies: GraphQL, JavaScript, HTML5, Web Development, Full-stack, MongoDB, Express.js, Node.js, Redux, React, REST APIs
Front-end Engineer
2013 - 2014
Nifti.com
- Created reusable D3.js charts using Raphael.js to draw SVG on browsers.
- Handled responsive design layouts for views.
- Implemented reusable components for UX using jQuery.
- Created an xQuery Selector generator from an HTML Element DOMNode.
- Created a Pop CSS editor for elements.
Technologies: Node.js, HTML5, Web Development, Raphaël, D3.js, jQuery, JavaScript
Technical Leader
2011 - 2013
Globant
- Did advanced JavaScript functional programming.
- Designed a MongoDB database.
- Created single-page apps with Backbone.js and Ember.js.
- Developed software using RESTful APIs with Node.js and Express.js.
- Handled JavaScript UX framework prototyping.
Technologies: Backbone.js, Express.js, Node.js, MongoDB, HTML5, JavaScript
Business Intelligence Consultant
2008 - 2011
America Movil (AMX)
- Developed a reporting and decision support system.
- Designed the data warehouse.
- Implemented an ETL process.
- Designed reports and data visualization.
- Configured SharePoint.
Technologies: SharePoint, PL/SQL, SQL Server Reporting Services (SSRS), SQL Server Analysis Services (SSAS), SQL Server Integration Services (SSIS), Microsoft SQL Server
Experience
An Introduction to Full-stack JavaScript
http://www.smashingmagazine.com/2013/11/introduction-to-full-stack-javascript/An article I wrote on how to develop applications end-to-end using only JavaScript from the client side to the server side, and even as a query language to the database side. The article was syndicated by Smashing Magazine.
Toptal Academy - React.js
https://www.youtube.com/playlist?list=PL6nqmerUSyVHKn5g0CpkHvtCycEylazGlI was in charge of the Toptal Academy for React.js program were we help other toptalers to understand new technologies
Toptal Academy: AngularJS
A crash course on AngularJS that I taught for the Toptal community in Córdoba.
Toptal Buenos Aires JavaScript Conference
A talk on ECMAScript 6 and Koa.js using generators, which are the most fascinating feature of ES6.
Bucefalo Base System | Class Definer for JavaScript
https://github.com/picanteverde/bucefalo-baseBucefalo Base System is a class definer for JavaScript that handles class definition and asynchronous module definition. The complete code and tests performed using Mocha are available in the link above.
ASCII Cam
I created an ASCII Cam to create ASCII art from live video from the web cam.
Augmented Box
A simple augmented reality game to hit the character on the screen controlling the ball using this marker:
http://bit.ly/UCXOe0
http://bit.ly/UCXOe0
Publication
A Look at JavaScript’s Future
https://www.toptal.com/developers/javascript/predicting-javascript-future
Publication
Polymer.js: The Future of Web Application Development?
https://www.toptal.com/developers/front-end/polymer-js-the-future-of-web-application-development
Publication
Init.js: A Guide to the Why and How of Full-stack JavaScript
https://www.toptal.com/developers/javascript/guide-to-full-stack-javascript-initjs
Education
2000 - 2005
Bachelor's Degree in Software Engineering
Catholic University of Cordoba - Cordoba Argentina
Skills
Libraries/APIs
React, Node.js, Backbone.js, REST APIs, D3.js, Polymer, jQuery, Raphaël, WebRTC, Socket.IO, EaselJS, WebGL, Three.js, jsSHA, RequireJS, YUI, Handlebars
Tools
Webpack 2, Babel, Webpack, Node Inspector, Gulp, Grunt, Atom, Expo, Amazon Elastic Container Service (ECS), AWS IAM, Git, GitHub, Apache Solr, Jenkins, Apache, Mercurial, Adobe Fireworks, Redmine, Jira, Mocha
Languages
GraphQL, ECMAScript (ES6), JavaScript, HTML5, TypeScript, Sass, ES7, Less, SQL
Frameworks
Redux, Express.js, Laravel, Flutter, Next.js, Connect.js, React Native, AngularJS, PixiJS, Ember.js
Paradigms
Business Intelligence (BI), Serverless Architecture, Functional Programming, Agile Software Development, REST, Asynchronous Programming, Prototype-based OOP, Parasitic Inheritance
Platforms
Amazon Web Services (AWS), SharePoint, MacOS, Amazon EC2, AWS Lambda, Docker
Storage
PostgreSQL, SQL Server Integration Services (SSIS), SQL Server Analysis Services (SSAS), SQL Server Reporting Services (SSRS), PL/SQL, Amazon S3 (AWS S3), Amazon DynamoDB, Oracle PL/SQL, Microsoft SQL Server, MongoDB, Redis, NoSQL, MySQL
Other
Serverless, Full-stack, Writing & Editing, Web Development, Architecture, RESTFul APIs, Data Analysis, Apollo, Amazon API Gateway, CTO, Vite, Ajax, DOM, Web Services
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