About

Work Experience

• Senior Java Developer, 

  Aug, 2020 - Present

  Refactoring of the full architecture.

  • Analysis, design, test and implementation of the core business logics using the latests technologies (Graphql, Dataloaders) and latests versions of Spring

• Senior Java Developer, 

  May, 2019 - Jul, 20201 year 3 months

  Specialized in designing efficient solutions for data processing and data delivery using AWS in a practical efficient and cost effective way.

  • Design a new Backend architecture highly scalable and reliable allowing teams to work independently and faster reducing deployments. Using Appsync with DynamoDB , Mysql with DMS and Lambdas

  • Design and develop a sync process from Mysql to s3. Allowing our chrome extension to use our core data on a safe and scalable way reaching millions of users. Using Spring, springBoot, Gradle and S3

  • Develop a internal chrome extension for our employees allowing them to access our data faster and in a more convenient way, increasing productivity. Using TypeScript

  • Improving Backend software based on JBOSS and Hibernate accelerating processes and query times while reducing the load on the server and making it more light and stable. This was a key improvement in order for the company to increase revenues on the most important period of the year like BlackFriday.

• Java Developer, 

  Aug, 2017 - May, 20191 year 9 months

  Improved the efficiency many folds allowing the company to reduce costs

  • Migrated multiple applications to Microservices in order to allow multiple teams work independently. Using PayaraMicro, Gradle, Docker, CodePipeline, CodeDeploy, API Gateway

  • Design and develop an authorisation system that allows granular access control throughout all applications in the company. Allowing the company to grant access to our internal tools to freelancers without security risks.

  • Develop an algorithm to compare words with CosineSimilarity that reduces the complexity from n*n to direct match improving the speed of the process many orders of magnitude.

  • Develop the core ETL process for the company in order to collect the main data the core business of the company is based on.

• Java Developer, 

  Aug, 2016 - Aug, 20171 year

  Created big contributions that allowed the rapid grow of the company to international levels

  • Develop a Management system for multiple ETL process running in parallel in order to distribute workload. Using AdamBien Porcupine

  • Develop scraping language and tools using JavaScript emulated in Java in order to speed up the maintenance of hundreds of sources. This allowed the company to grow even faster and into more regions around the world. Using Json and Nashorn

  • Design and develop a highly efficient scraping tool with an improved Apache HttpClient in order to handle millions of connections and redirections for more than 25 countries collecting millions of entries per hour. The architecture design consist on a cluster of MongoDB and a cluster of Microservices distributed on multiple machines depending on their load. Deployed using Bamboo and AWS code deploy and integrated with SQS, AWS Kinesis, Slack, Gdocs, S3, Jsoup

• Java Developer, 

  Jul, 2015 - Aug, 20161 year 1 month

  Started creating bigger projects that impacted the company allowing it to diversify

  • Develop a machine learning classification program from Python to Java in order to automate the processing of the 9M entries per day on the previous project. Using Weka to generate a model and integrate it with the previous ETL process, we achieved 98% accuracy

  • Started a new project for a new product that consumed 9M entries a day. Using improved previous ETL process and JDBC, Mysql with TokuDB for fractal tree index and high throughput. Worked with a team of Java developers and Data scientists in order to provide a highly ambitious product.

  • Develop company's first BI ETL process allowing the company to be faster on reporting and growing. Using Apache HttpComponents, Native Java multi-threading, Google Docs APIs, Jackson and OpenCSV

  • Build a HR GUI for processing documents and connecting to bambooHR APIs. Saving HR hours of documents processing per month. Using Java Swing, Gradle, Apache HttpComponents.

• Developer, 

  May, 2014 - Jul, 20151 year 2 months

  Develop a series of tools to improve efficiency on the overall company work flow

  • Scraping tool for collecting data on millions of pages. Using Selenium + Selenium Grid and Mysql enabling the company to measure it's position on the market

  • Created SEO application. Using UBot allowing the SEO team do AB testing

  • Building Google Spreadsheets scripts in JavaScript for connecting to internal databases allowing our employees to access data faster and automatically

• Product Manager, 

  Sep, 2013 - May, 20148 months

  Responsible of product development, organising teams, writing technical specifications for developers, unblocking and improving process, and analysing teams performances.

  • Building company's first front-end status check for deployments allowing automated QA on all pages. Using Jmeter and Google Spreadsheets

  • Building automation scripts in JavaScript for interacting with internal tools saving hours of work on management

  • Developing company's first front-end automation test for content such as meta data and strings

  • Started as an intern When the company was a Startup

• Web developer, 

  Sep, 2012 - Sep, 20131 year

  Develop a full website to help people get ideas for a gift.

  • Database design in Mysql using PhpMyAdmin

  • Design backend API for front-end in PHP using Zend framework

  • Design full front-end in ActionScript flashPlayer

  • Designed an Android application that uses same backend

Skills

Education

Awards

Volunteer Work

Interests

References