Alexis Hernandez

I have expensive experience working with Scala in a practical way, I started my journey working with Finagle/Finatra, and then moved to Play Framework, where I have been working for more than 4 years. Besides that, I have also worked a lot with Scala.js, built several libraries, and even developed a cli application (with GraalVM). Besides that, I have also built several browser extensions with Scala, as well as Slack/Discord bots. I have some projects to showcase in the open source side: - A library targeting Play Framework to abstract common scenarios while working with REST APIs: https://github.com/AlexITC/playsonify - A cryptocurrency block explorer targeting many BItcoin-based cryptocurrencies, currently deployed for Bitcoin/Litecoin/Stakenet, its been running smoothly for more than 3 years: https://github.com/X9Developers/block-explorer - A cryptocurrency price tracker, supporting many CRUD-like APIs, like user registration, to coin selection, and i18n alerts: https://github.com/AlexITC/crypto-coin-alerts

I have been working with Scala.js for a few years, I started using it to build browser extensions, and then, started using it for my web applications. On the open source side, I have several projects to showcase. I'm the https://github.com/AlexITC/scala-js-chrome sbt plugin maintainer since 2019, which is used to build browser extensions with Scala.js Also, I'm the https://github.com/AlexITC/chrome-scalajs-template author, which provides an opinionated approach for building browser extensions with Scala.js The previous tools power the https://github.com/wiringbits/cazadescuentos project, which involves many applications written with Scala while reusing as much code as possible: - A browser extension - A Progressive Web App (PWA) - An Android app wrapping the PWA

I have been using Play Framework extensively for more than 4 years, used for many applications, including Slack/Discord bots. I used to be very active supporting users on its gitter channel. On the open source side, I have built a couple of libraries related to play frameowork: - https://github.com/AlexITC/playsonify - https://github.com/AlexITC/play-request-tracer Also, I have published posts about it, like https://wiringbits.net/scala/playframework/2020/03/22/notes-about-play-framework-and-the-execution-context.html

I have been involved in several cross-browser extensions, its been 2 years since I got involved in the first one, which is a price tracker in many online stores (a simpler Honey's version), since then, I have developed tools for building these, as well as being involved in the development of others. The major extension I have worked with is open source: https://github.com/wiringbits/cazadescuentos Also, this is the template I build for starting a new browser extension: https://github.com/AlexITC/chrome-scalajs-template Besides this, I have also performed security audits to other extensions.

I have been using PostgreSQL for most of the projects I have worked with in the latest years, from CRUD services, to more complex ones, currently I maintain a database that indexes the Bitcoin network, requiring more than 1 TB of disk, which required to re-structure many details on how the database is queried, as well as the indexes involved. Overall, I use PostgreSQL for everything unless there is a proof that a specific technology is needed, for example, while PostgreSQL works smoothly for most Full-text search requirements, sometimes you need something more specific like ElasticSearch.

I have been involved in blockchain projects for more than 3 years, from cryptocurrencies to enterprise applications. On the cryptocurrency space I have had to build lots of tooling around it. On the enterprise side, I have mostly worked on the space related to decentralized identities.