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Alonso Ayala Ortega

Alonso Ayala Ortega

Delicias, Mexico
Member since October 20, 2015
Alonso is a professional software engineer with 6+ years of experience creating highly maintainable software products. He's an experienced full-stack developer geared towards QA. His great communication skills and his keen eye for specification analysis allow him to deliver bug-free solutions which entirely meet the client requirements.
Alonso is now available for hire
Portfolio
Experience
  • Java, 7 years
  • PostgreSQL, 5 years
  • JavaScript, 5 years
  • Git, 5 years
  • Mocha, 4 years
  • Behavior-driven Development (BDD), 4 years
  • ECMAScript (ES6), 3 years
  • Node.js, 3 years
Delicias, Mexico
Availability
Full-time
Preferred Environment
CI/CD, E2E Testing Coverage, Maven, IDEA, Git
The most amazing...
...project I've created is a loyalty system that integrates multiple full-stack technologies which include a Cucumber/BDD module that runs acceptance E2E tests.
Employment
  • Software Engineer
    2018 - PRESENT
    WhereTo, Inc.
    • Created an E2E testing framework using behavior-driven development.
    • Built a tool to upload and create multiple users using Ramda and functional programming.
    • Developed validation modules for RESTful services.
    • Took leadership on the improvement on quality by introducing BDD tests and TDD techniques.
    • Built vehicle searching module by evaluating and parsing XML responses from Travel Port.
    Technologies: JavaScript, ES6, Node.js, React, Ramda, Redis, Cucumber, Docker
  • Software Engineer
    2018 - 2018
    Sonar Trading
    • Created a module to connect to a currency trading exchange using concurrent algorithms.
    • Created and improved integration tests, which helped us verify the quality of the application.
    Technologies: Java 8, LMAX Disruptor, JUnit 5
  • Software Engineer/QA
    2016 - 2017
    Sabre Airline Solutions
    • Created automated acceptance tests using a homegrown API client framework, AssertJ, and Hamcrest.
    • Created a Cucumber/BDD project that helped business analysts create auto-verifiable specifications.
    • Helped the QA team finish their testing plan for some of the released versions of the system.
    • Delivered 100% bug-free solutions for a REST API module that consumes data from internal and external web services and produces information in JSON format aimed at our React.js web app.
    • Used test-driven development for bug solving and feature creation.
    • Developed full-stack flight reservation solutions.
    Technologies: RESTful Services, Java, Spring, JUnit, Mockito, React.js/Redux
  • Software Engineer
    2014 - 2016
    Switchfly
    • Supported RESTful web service modules that provided travel solutions for multiple airlines and travel agents around the world.
    • Created automation tests using Selenium WebDriver and improved the automation framework using the page object model.
    • Assured the quality of SQL migration scripts by making optimizations that made no-downtime system upgrades possible.
    • Applied SOLID principles and XP practices like test-driven development, code reviews, and pair programming in order to create clean code features.
    • Developed front-end solutions using JavaScript, Ember.js, and Handlebars.
    • Supported a connectors module which gathered information from multiple external global distribution systems (GDS).
    • Created optimized SQL scripts to run data migrations using Psql and pgAdmin 3.
    Technologies: Selenium WebDriver, RESTful Services, Java, Spring, JUnit, EasyMock, Maven, Git, JavaScript, Web Services, PostgreSQL
  • Software Engineer
    2013 - 2014
    TGC
    • Troubleshot tricky defects found in Oracle ADF and Oracle JDBC frameworks.
    • Helped the QA team run functional tests using Oracle Application Testing Suite (OATS).
    • Supported a tax collection system using Oracle ADF BC, ADF Faces, and Java Swing.
    • Solved critical bugs in Java and PL/SQL code using JDeveloper and SQL Developer.
    • Verified Java and PL/SQL code and Oracle database schemas to apply possible optimizations.
    • Made several performance improvements to stored procedures applying optimizations to PL/SQL code and Oracle database tables.
    Technologies: Java, Oracle Database, Oracle Application Testing Suite, Oracle ADF, PL/SQL
  • Software Developer
    2010 - 2013
    Union de Credito Progreso S.A. de C.V.
    • Created a mobile banking Android app that consumed web services from the core banking module.
    • Made optimizations to T-SQL cursors that reduced its processing time up to 70%.
    • Created T-SQL scripts to automate account charges using SQL Server scheduled tasks.
    • Supported an online banking application developed in ASP.NET and SQL Server 2005.
    • Implemented multi-factor user authentication to our web banking application using RSA SecurID hardware tokens.
    Technologies: Android, .NET, SQL Server
Experience
  • BBO and Trading Simulator (Development)
    https://github.com/alayor/coin-trading

    BBO app (Best Bid and Offer) that connects to an exchange provider using its REST API and web socket endpoints.

    It retrieves BTC trades and current orders in real time showing the best bids and best asks in the UI.

    It also simulates trade orders based on a "contrarian" algorithm which creates trades based on BTC price downticks and upticks.

    * Java FX8
    * Concurrent programming
    * Web Sockets
    * REST API

  • GreatAppXYZ (Development)
    https://github.com/GreatAppXYZ

    A codebase that works as a template to create SaaS projects based on a full-stack microservices architecture that integrates Spring Cloud and React.js/Redux as main technologies.

    The solution combines the following services:

    * Behavior-driven development module that verifies the system's specifications by running E2E tests.
    * Authentication service (Spring Security OAuth2).
    * Discovery service (Netflix Eureka).
    * Database service (PostgreSQL).
    * Configuration service (Spring Configuration)
    * API services (Spring Boot)
    * Single-page web application (React/Redux).

    Technologies: Spring Cloud, React.js, ES6, Gradle, Cucumber, JsonPath, Webpack, Lodash.js, JDBC.

  • Monedero Bingo API Services (Development)
    https://github.com/MonederoBingo/api-services

    Monedero Bingo is a SaaS solution that allows companies to give loyalty points to their customers and clients using their phone number. Customers can redeem their points to get promotions and giveaways.

    It provides a robust REST API service intended for internal use but also aimed at external clients.

    It also has a BDD module that specifies the system features using Cucumber Gherkin syntax and validates them by running functional E2E tests.

    Technologies: Spring IoC, Java, EasyMock, JDBC, PostgreSQL, Cucumber.

  • Monedero Bingo Web App (Development)
    https://github.com/MonederoBingo/web-client

    Single-page web app that consumes Monedero Bingo API services and allows companies to configure redemption and promotion strategies.

    Technologies: AngularJS, Mocha, Bootstrap, CSS, HTML.

  • Monedero Bingo Android App (Development)
    https://github.com/MonederoBingo/android-client

    A mobile application that consumes services from Monedero Bingo API.

    It allows users to visualize their loyalty points and lookup for available promotions among multiple providers.

  • Xaldo - Mobile App for Service Bill Management (Development)
    https://angel.co/xaldo

    An Android App and API services platform that allows the user to check and pay their bills from multiple providers in one single place.

  • Blog Website (Other amazing things)
    https://github.com/alayor/alayor.github.io

    Static web project hosted in GitHub web pages whose content is generated using Jekyll.

    It's a simple but elegant project which elegance is reflected in the website.

    http://www.alayor.com

  • Progreso Mobile (Development)

    Mobile Android app the allows users to transfer money between accounts, make service payments, and check account balance history among other banking transactions.

  • Test-driven React.js Development: React.js Unit Testing with Enzyme and Jest (Publication)
    Any piece of code that has no tests is said to be legacy code according to Michael Feathers. Therefore, one of the best ways to avoid creating legacy code is using test-driven development (TDD). While there are many tools available to create unit tests in JavaScript and, in this post, we will use Jest and Enzyme to create a React.js component with basic functionality using TDD.
Skills
  • Languages
    JavaScript, ECMAScript (ES6), Java
  • Frameworks
    Spring, JUnit, Mockito, Redux, Spring Security, Jest, .NET
  • Libraries/APIs
    Node.js, React
  • Tools
    Git, Cucumber, Maven, Subversion (SVN), IntelliJ IDEA, Mocha, Gradle
  • Paradigms
    Behavior-driven Development (BDD), Test-driven Development (TDD), Agile Software Development
  • Platforms
    Linux, Android
  • Storage
    JSON, PostgreSQL, Oracle PL/SQL
  • Other
    RESTful Web Services, QA Automation, Algorithms, Data Structures, Spring Cloud
Education
  • Bachelor of Science degree in Computer Engineering
    2006 - 2010
    Instituto Tecnologico de Delicias - Chihuahua, Mexico
Certifications
  • Oracle Certified Expert, Java Platform, EE 6 Web Component Developer
    JANUARY 2014 - PRESENT
    Oracle
  • Oracle PL/SQL Developer Certified Associate
    NOVEMBER 2013 - PRESENT
    Oracle
  • Oracle Certified Professional, Java SE 6 Programmer
    APRIL 2011 - PRESENT
    Oracle
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