Worked doing maintenance on legacy application using Express, NodeJS and Postgres. Had to change ElasticSearch queries, export an array JSON to XLSX and send it to the browser to download, do maintenance on RabbitMQ queues, do cookie maintenance from the backend, do third party API integrations, convert a small project from JS to Typescript, etc. General backend maintenance with NodeJS. Cocreated and architected database tables needed in a module, read such tables to populate a Mongo database. Wrote PostgreSQL through Knex library to interact with the database. Worked in several versions of JavaScript including Typescript. Created needed features in existing software with React. Reviewed PR’s from junior employees. Worked changing properties of cookies and using local storage.

Created and recreated software screens from the planning until the coding using AngularJS, NodeJS and PostgreSQL, writing REST APIs and coding the business logic. Added new features and maintained existing ones in the company’s new educational management software using technologies such as AngularJS, HTML, CSS, Node.js (ES6), Express.js and PostgresSQL.

Maintained and created new features on three different company softwares using HTML, CSS, JSF, Java EE and Oracle SQL.

Maintained and created new features on the company's main software using HTML, CSS, Java EE, SQL procedures and Jasper reports.