Lucas Hang Email & Phone Number

Curitiba, Paraná, Brasil

As a senior software developer, I maintained my activities on the tax system but was assigned to a new artificial intelligence project aimed at improving tax auditing processes.In this new project, I am working with:• Python 3.7• Scikit-Learn• Keras 3• Matplotlib• Data Science• Data Processing• Neural Networks• PostgreSQL / PgAdmin

Curitiba, Paraná, Brasil

As a mid-level software developer, I was assigned to the active debt sector, where development is more critical and sensitive, as we deal with debts, installments, payments, protests, and legal actions.In this role, I worked on:• High-priority and complex tasks using GWT/Java 8/Hibernate/OracleDB• Maintaining queries, procedures, and triggers in OracleDB/PLSQL• Continuous integration with HUDSON• Developing REST APIs for communication with other internal systems•… Show more As a mid-level software developer, I was assigned to the active debt sector, where development is more critical and sensitive, as we deal with debts, installments, payments, protests, and legal actions.In this role, I worked on:• High-priority and complex tasks using GWT/Java 8/Hibernate/OracleDB• Maintaining queries, procedures, and triggers in OracleDB/PLSQL• Continuous integration with HUDSON• Developing REST APIs for communication with other internal systems• Microsoft SQL Server Management Studio for internal systems• Developing and maintaining asynchronous processes with Quartz• Monitoring infrastructure with Zabbix• SSH connections to production servers using PuTTYI studied:• Angular 17, HTML5/CSS3/JS, TS• Spring Boot 3• Clean Code / Clean Architecture Show less

Curitiba, Paraná, Brasil

As a junior software developer, I worked on a tax system provided to the government of Osasco-SP, performing the following tasks:• Front-end development and maintenance using Google Web Toolkit (GWT) 2.4 / Java 8• Back-end development and maintenance using Java 8• Managing a legacy system with JSP / Apache Struts / Servlets• Developing the persistence layer with Hibernate• Managing the Oracle database with PLSQL• Generating Jasper reports with iReport• Version… Show more As a junior software developer, I worked on a tax system provided to the government of Osasco-SP, performing the following tasks:• Front-end development and maintenance using Google Web Toolkit (GWT) 2.4 / Java 8• Back-end development and maintenance using Java 8• Managing a legacy system with JSP / Apache Struts / Servlets• Developing the persistence layer with Hibernate• Managing the Oracle database with PLSQL• Generating Jasper reports with iReport• Version control with Tortoise SVN• Managing the web server and container with Apache Tomcat Show less

Curitiba, Paraná

As a junior software developer, I worked on the maintenance and development of a system provided to an internet service provider company, enabling the management of customers, payments, internet plans, service orders, inventory control, report generation, among other functions.I performed activities such as:• Developing user interfaces for better visualization and control of internet plans, displaying data more pleasantly and clearly, making the user experience lighter and… Show more As a junior software developer, I worked on the maintenance and development of a system provided to an internet service provider company, enabling the management of customers, payments, internet plans, service orders, inventory control, report generation, among other functions.I performed activities such as:• Developing user interfaces for better visualization and control of internet plans, displaying data more pleasantly and clearly, making the user experience lighter and faster, resulting in more optimized customer service.• Creating new reports using optimized search algorithms, retrieving data quickly and efficiently, allowing users to perform business analysis and control.• Redesigning the inventory control algorithm to allow the movement of multiple products to different locations. Previously, users could only move one product at a time, making the process slow and exhausting. With numerous daily product movements, users often made incorrect movements, causing significant stock discrepancies. After the improvement, the process became much faster and more reliable, eliminating stock issues and greatly optimizing user workflows. Show less

Curitiba, Paraná, Brasil