Jorge Nicolás Cellerino
Verified Expert in Engineering
Full-stack Developer
Jorge has many years of experience working with Node.js, TypeScript, SQL, React, Java, and related frameworks like Express and Spring. He has recently focused on Agile methodologies for building RESTful web services for mobile and web applications. Jorge is responsible, proactive, a fast learner, committed to results, and well-accustomed to working with distributed teams in different time zones.
Portfolio
Experience
Availability
Preferred Environment
Jira, Git, Unix, MacOS, REST, Amazon Web Services (AWS), Agile Software Development, Visual Studio Code (VS Code), Scrum, Kanban
The most amazing...
...team I've worked with did estimation, development, and deployment for ships on the web service for the Disney Cruise Line mobile app, DCL Navigator.
Work Experience
Node.js Back-end Developer
Volvo R&D Center
- Implemented Clean Architecture and Domain-Driven Design (DDD) principles into the existing Node.js and TypeScript microservices architecture, reducing the number of microservices and facilitating easier testing and deployment of the application.
- Developed new features and fixed bugs in the dashboard admin web app implemented with React, TypeScript, and functional programming.
- Performed deployments on the production environment and production support of the product.
- Created new features and fixed bugs on Node.js/TypeScript microservices.
React and Java Full-stack Developer
AppDirect
- Developed a website using React, Stripe, and Java Spring Boot that allowed resellers to apply for a debit card, send and activate the card, and display the card balance and expenses.
- Integrated and deployed the website into the company's CI/CD pipeline using Jenkins, Docker, Kubernetes, Amazon EKS, and ArgoCD.
- Integrated a recently acquired app (service locator), composed of two web apps built on Angular and React and two REST APIs developed on Next.js and Go, into the AppDirect CI/CD pipeline.
- Migrated a database with over nine million geocode addresses from PostgreSQL to MySQL, adapting the addresses to a new model using Google Geocoding API.
- Implemented E2E tests for the mentioned applications using Cypress.
Full-stack Developer
Johnson & Johnson - BabyCenter
- Implemented new features and maintained existing features on the website with Java Server Pages.
- Developed new features and bug fixing on Java Spring REST services and SQL.
- Migrated existing components from Java Server Pages to a new React-based environment.
Full-stack Developer
Exhale
- Implemented new features and bug fixes on the Exhale Angular 7 application.
- Developed new features and bug fixing on the Exhale Java Spring Boot REST service.
- Implemented the single sign-on login on an Angular SPA (sessionless) and Java Spring Boot back-end to communicate with the Hyatt SAML server.
Full-stack Developer
Texas Sinus Center
- Implemented the OTCme mobile app with React Native, allowing users to search for medications that matched their symptoms or body parts affected and locate the closest pharmacy with the medication available for sale.
- Developed an admin web app in AngularJS for managing the information displayed by the app.
- Built the RESTful web services consumed by the mobile app and the admin web app in Node.js. They provided CRUD operations on app entities, user authentication and registration, and medication search based on symptoms, body parts, and user location.
- Designed the service architecture and deployed the web services on AWS.
- Implemented the beta version of the OTCme mobile app with Ionic 1.
Full-stack Developer
Cityleaf
- Implemented a single-page application for managing users, customers, stock, sales, sales proposals, and route scheduling.
- Created the back-end REST API JHipster and Spring Boot.
- Created a web application using AngularJS, Bootstrap, and Sass.
- Deployed the entire application on the Azure platform.
Full-stack Developer
5AM Solutions (via Toptal)
- Implemented a single-page application for managing pharmaceutical studies and data collection.
- Componentized UI modules for file downloading and uploading.
- Created the back-end REST API using microservices architecture with JHipster and Spring Boot.
- Implemented single sign-on with SAML authentication on the client and server side.
- Implemented a notification service with Apache Kafka messaging and Spring Boot.
- Developed a prototype for using Activiti BPMN with Spring Boot.
- Built and deployed the application using Docker and Docker Compose.
- Implemented a BDD test suite with Cucumber and Gherkin.
Web Developer
Smart Business Money Habits (via Toptal)
- Created a single-page site for managing sales goals.
- Developed the back-end REST API for login and managing basic goals consumed by the website.
- Implemented extensive unit and E2E test coverage for the front-end using Karma and Protractor.
- Implemented unit and integration tests for the back-end using Mockito and JUnit.
- Deployed the website in AWS using EC2 and Elastic Beanstalk.
Senior Software Engineer
Disney Cruise Line (via Globant)
- Developed REST services using the Kanban methodology that managed guest registration and consumed data from other services and databases to present a single data model to the mobile application.
- Conducted performance tests and service profiling to identify bottlenecks.
- Implemented a service chat using the Openfire server and developed several plugins.
- Deployed several service releases on different ships during its voyage through satellite connections.
- Provided technical support to IT officers on the ships to solve live guest issues with the app.
- Designed a console for administrating mobile application configurations.
- Worked in the clients’ offices in Florida for four months.
Senior Software Engineer
Walt Disney Parks & Resorts (via Globant)
- Developed REST services using the Scrum methodology that consumed data from a cache and other services to present a unified data model to the mobile application.
- Performed on-site mobile application testing to identify issues and improve the guest experience.
- Performed performance tests and profiling of different services to identify and fix bottlenecks.
- Performed the ramp-up processes for new team members.
- Developed Python scripts for processing log files and analyzing service errors.
- Worked in the clients’ offices in Seattle for two months.
Senior Software Engineer
AccuScore (via Globant)
- Designed a REST API consumed by a social trivia gaming title that performed the game logic.
- Designed database schema and SQL queries for all the game data.
- Trained new team members.
- Implemented extensive unit-test coverage with Clover.
- Coded an administration tool for managing the game configuration parameters.
Web Developer
Universal Music Group (via Hewlett-Packard)
- Implemented new flows for a web application for the management of new releases and repertoires.
- Implemented SOAP services with spring WS.
- Migrated from Java 6 to Java 7.
- Implemented extensive unit test coverage.
- Provided production support for live issues.
Web Developer
La Caixa (via Hewlett-Packard)
- Developed a web product sales application.
- Implemented a tool for mapping errors from Excel files to application errors.
- Developed integration and unit tests.
- Obtained Oracle Java Standard Edition 6 certification.
- Provided production support for live issues.
Web Developer
Mattel (via Folder)
- Developed a user interface for a website for managing collectible items.
- Implemented server logic for the web application.
- Designed database schema.
- Analyzed user requirements and translated to use cases.
- Implemented a tool for importing Mattel products from Excel files to a database.
Web Developer
Folder S.A.
- Designed a web application for managing medical appointments, calendars, and patients.
- Developed server logic for managing web application data.
- Designed database schema and stored procedures for the server data.
- Analyzed user requirements and documented user cases and application architecture.
- Wrote test cases for a complete set of functionalities.
Web Developer
Cidal S.A. (via Software Santa Fe)
- Implemented an ERP desktop application.
- Designed database and data access modules.
- Interviewed clients to gather requirements.
- Analyzed requirements and documented user cases.
- Performed production deployment and on-site testing.
- Designed and implemented reports for business intelligence.
Experience
Valet Application for Volvo Retailers
https://www.volvocars.comWeb App for Managing Resellers' Debit Cards and Expenses
https://www.appdirect.com/Babycenter
https://www.babycenter.comOTCme Mobile App
World of Hyatt, Exhale Integration
https://exhalespa.com/Disney Cruise Line Navigator
https://disneycruise.disney.go.com/featured/navigator-app/My Disney Experience
https://disneyworld.disney.go.com/es-us/plan/my-disney-experience/mobile-apps/Walt Disney Parks and Resorts
https://disneyworld.disney.go.com/Skillset
Languages
JavaScript, Java, SAML, SQL, Less, CSS, Hibernate Query Language (HQL), HTML, Java 8, HTML5, Java 7, Python, XML, Gherkin, GraphQL, Sass, TypeScript
Frameworks
JUnit, Hibernate, Express.js, Ionic, JSON Web Tokens (JWT), JPA, Apache CXF, Spring, Dropwizard, Jakarta Server Pages (JSP), Spring Security, PowerMock, Mockito, AngularJS, React Native, JBehave, Apache Struts 2, GWT, GWT-Ext, Swing, Protractor, Spring Boot, Redux, Bootstrap, Angular, Activiti BPM, Cypress, Next.js
Libraries/APIs
REST APIs, Node.js, Liquibase, EasyMock, JDBC, Java Servlets, React, Google Maps API, JasperReports, Stripe API, Google Geocoding API, Redux-Saga, InversifyJS
Tools
Apache Tomcat, Apache Maven, Mongoose, JHipster, Git, YourKit, Apache JMeter, GitHub, Perforce, Bamboo, Jira, iReport, Karma, Cucumber, Docker Compose, IntelliJ IDEA, Gradle, Jenkins, React Apollo
Paradigms
REST, Scrum, Design Patterns, Behavior-driven Development (BDD), Test-driven Development (TDD), Microservices Architecture, Microservices, Kanban, Agile Software Development
Storage
JSON, MongoDB, PostgreSQL, SQL Server 2014, Oracle9i, SQL Server 2005, Sybase, Cassandra, Microsoft SQL Server, MySQL, Couchbase, Oracle 11g, Elasticsearch, Redis
Other
RESTful Web Services, Back-end, APIs, Security, XMPP, Openfire, API Integration, Full-stack, Front-end, Ajax, EJB3, Lambda Functions, Apache Cassandra, Single Sign-on (SSO), Pixel Perfect, Domain-driven Design (DDD), Apollo, Springbot, End-to-end Implementation (E2E), Argo CD
Platforms
Unix, Eclipse, IBM WebSphere, Jakarta EE, JBoss, Apache Kafka, Docker, Amazon Web Services (AWS), MacOS, Kubernetes, Visual Studio Code (VS Code), AWS Lambda
Education
Java SE 6 Programmer Certified Professional Certification in Java SE
Oracle University - Cordoba
Bachelor's Degree in Software Engineering
UTN - Santa Fe
Certifications
Oracle Certified Associate Java SE 7 and SE 6
Oracle
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