Guilherme Yuki Hatano's Timeline
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Education
2011 → 2013 (3 years)
Instituto Federal de Educação, Ciência e Tecnologia de São Paulo - IFSP (Federal Institute of Education, Science and Technology of São Paulo)
System Analysis and Development
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Tutoring
Mar 2012 → Jul 2012
C Programming Language Tutor at IFSP
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Undergraduate Research
Aug 2012 → Jan 2013
Investigation of the performance and functionality of Business Intelligence Platforms with PostgreSQL/PostGIS, Pentaho Mondrian e Spatialytics GeoMondrian (2012).
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Volunteer
Feb 2013 → Oct 2015 (2 years 9 months)
Collaborator
FLISOL São Carlos
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Publication as second author
October 8, 2013
On the performance and use of spatial OLAP tools
Published in: Computing Conference (CLEI), 2013 XXXIX Latin American
Description: Spatial data warehouses provide a means of carrying out spatial analysis together with agile and flexible multidimensional analytical queries performed by SOLAP tools. However, queries are processed with slow query response times and functionalities of these tools are still insufficient, such as the support for a variety of spatial data warehouse schemas. In this paper, we conduct an experimental evaluation of existing open source software as SOLAP tool and database management system, to analyze its functionalities and query processing performance. Furthermore, we describe and evaluate our novel SOLAP tool called MapQuery that reuses efficient indices to boost query processing performance. Results derived from our performance evaluation indicated that MapQuery shortened the response time of queries from at least 63% up to 92% if compared to existing solutions.
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My blog
February 2014
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Internship at bluedotsoft
Aug 2013 → Feb 2014 (7 months)
Developer with Java EE 6, Glassfish, MySQL and Git.
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Volunteer
February 2015
Campus Party 2015
Temporary CRM Collaborator
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Open source project
May 2015
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System Analyst and Developer at bluedotsoft
Jul 2014 → Oct 2015 (1 year, 4 months)
Developer with Java EE 7, Wildfly 8.2, JSF 2.2, JMS, Primefaces, Hibernate, MySQL and Git.
DevOps setup of Redmine, Gitolite, Jenkins, Sonar Qube, Sonatype Nexus, ELK (Elasticsearch, Logstash and Kibana) and OpenNMS.
System Administration:
- NFS (Network File System).
- Firewall with Iptables. Security tools used: SQLMap, Hydra, OWASP ZAP. -
Education
Dec 2015 → Jul 2016 (8 months)
English Language Academy (ELA Ireland)
General English, Upper Intermediate
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Volunteer
12th December 2015
Aware Christmas Run
Phoenix Park, Dublin, Ireland
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The Herald's Newspaper Seller
11th January 2016 → 5th February 2016
The Herald's Newspaper Seller
Dublin, Ireland
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Cleaner at Ailesbury Services
13th February 2016 → 9th April 2016
Cleaner at Massimo Dutti Store in Dundrum Town Centre
Dublin, Ireland
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Volunteer
26th March 2016
Cadbury Easter Egg Hunt
Merrion Square, Dublin, Ireland
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Volunteer
18th June 2016
CoderDojo Coolest Projects Awards
RDS Dublin, Ireland
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Open source project
6th November 2016
guihatano.github.ioThis site's code
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Open source project
Started: 5th June 2017
guihatano/imobiliariaA real estate agency's website using Ruby on Rails / Site para imobiliária em Ruby on Rails
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Ruby on Rails Developer at Loldesign
Jun 2017 → Feb 2020 (2 years, 9 months)
Web development with Ruby on Rails, React.js, PostgreSQL, MySQL, Docker and Git.
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PROGRAMA TEATRAL ORATÓRIA ESPONTÂNEA®
Dec 2017 (16 hours)
16 hours of theatrical techniques for spontaneous and impactful oratory! / 16 horas de técnicas teatrais para uma oratória espontânea e impactante!
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Ruby Developer at Liber Capital
Feb 2020 Nov 2020 (10 months)
Development with Ruby on Rails, Sinatra, RabbitMQ, PostgreSQL, OAuth2, Docker, Git and AWS.
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Freelancer project
Started: May 2020
IE Site UFSCarA website for apply cientific tests of Emotional Intelligence using Ruby on Rails, Docker and PostgreSQL
Um site para aplicações de testes para estudos científicos de Inteligência Emocional em Ruby on Rails, com Docker e PostgreSQL
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Ruby on Rails Developer at CS Global IT
Nov 2020 → Aug 2021
Development with Ruby on Rails, Elasticsearch, PostgreSQL, Git and Azure.
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Ruby Developer at Liber Capital
Aug 2021 → Currently
2021~2022: Worked in a Design System and SPA team as the main backend developer, creating endpoints for SPA and sometimes as fullstack helping on customizing the components for the design system in react.
Other activities: Tech Interview, Support N3.
2023~2024: Worked in the N3 team, supporting incidents and fixing some bugs
After about 1 year, the team fulfilled its purpose and ended up being integrated into the existing teams.
2024~Currently: Working in integration team
The team responsible for integrations via CNAB files and API.