Yaison Alcantara, Back-end Development Developer in Santo Domingo, Distrito Nacional, Dominican Republic
Yaison Alcantara

Back-end Development Developer in Santo Domingo, Distrito Nacional, Dominican Republic

Member since February 17, 2021
Yaison is a Java developer with 10+ years of experience coding web-based applications. He's experienced in the full software development life cycle: development, coding, testing, implementation, and deployment. He is able to get hands-on with SQL databases, front-end development, and legacy systems as well. Yaison excels in multicultural environments with team members around the world.
Yaison is now available for hire

Portfolio

  • GBH Solutions
    Java, Spring, MySQL, REST, HTML, AWS, Cloud, Web Services, Back-end Development
  • Indra
    Java, Spring, Oracle, HTML, REST, Web Services, RESTful Web Services
  • Verizon
    Back-end Development, Java, Oracle, Web, Web Services, HTML, REST, SOAP

Experience

Location

Santo Domingo, Distrito Nacional, Dominican Republic

Availability

Part-time

Preferred Environment

Linux, Slack, Outlook, VS Code, Java, SQL, HTML, Cloud, REST, Web

The most amazing...

...bug I've fixed was in Oracle's WebLogic application server that prevented the entire team's app to load. A few months later, Oracle submitted an official patch.

Employment

  • Senior Software Engineer III

    2019 - PRESENT
    GBH Solutions
    • Implemented an internal search engine capable of delivering full-text search queries in the sub <1 second response time.
    • Dramatically optimized the application performance from a 5-second average to sub <1 second.
    • Migrated legacy Java code to modern Java 11 with Spring Boot.
    Technologies: Java, Spring, MySQL, REST, HTML, AWS, Cloud, Web Services, Back-end Development
  • Senior Software Engineer

    2018 - 2019
    Indra
    • Developed concurrent request processing for faster user data retrieval in an Android application.
    • Migrated successfully part of C code into modern Java and provided the service with a REST endpoint.
    • Created important business components and logic for the strategic planning and provision of the government-managed electrical grid.
    Technologies: Java, Spring, Oracle, HTML, REST, Web Services, RESTful Web Services
  • Senior Software Engineer

    2010 - 2017
    Verizon
    • Developed a multi-server and multi-app configuration system way before the word cloud was popular. It helped save many hours in configuring and storing per-app settings needed in every project.
    • Implemented a messaging system when the team was constrained by infrastructure technical decisions. It helped deliver asynchronous messages and storage for quality of service between endpoints.
    • Created a batch processing system that took on excel spreadsheets, uploaded by the user, which processed row by row and inserted the data in the database.
    Technologies: Back-end Development, Java, Oracle, Web, Web Services, HTML, REST, SOAP

Experience

  • Carmarket Crawler

    An application that tracks the market data of posted car ads and does statistical analysis on it. It crawls the web for different local sites which publish car data and prices. On top of that, a database is built for later heavy query usage. Then, in-depth car reports and visualization are being generated for end users.

Skills

  • Languages

    Java, SQL, JavaScript, HTML
  • Frameworks

    Hibernate, Spring
  • Other

    RESTful Web Services, Back-end Development, AWS, Software Engineering, Information Systems, Web Services, SOAP, Cloud
  • Platforms

    Oracle, Linux, Docker, Web
  • Storage

    MySQL, MongoDB, Databases, JSON
  • Libraries/APIs

    React, Node.js
  • Paradigms

    REST

Education

  • Bachelor's Degree in Computer Systems Engineering
    2007 - 2012
    Instituto Tecnológico de Santo Domingo - Santo Domingo, Dominican Republic

Certifications

  • Oracle Certified Professional, Java SE 6 Programmer
    APRIL 2015 - PRESENT
    Oracle

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