Ricardo is available for hire

Ricardo Lima

Verified Expert in Engineering

Software Engineering Developer

Brasília - Federal District, Brazil

Toptal member since February 4, 2022

Expertise

Back-end Developers Java Spring REST API Spring Boot Linux SQL Database Oracle Development JavaScript Unix HTML5 TypeScript

Bio

Ricardo is a software engineer with over 13 years of experience in Java and Spring Framework using SQL databases, providing APIs and applications, particularly in the legislative sector. On the front-end side, he's worked with JavaScript and TypeScript using the Angular and React libraries.

Portfolio

Senado Federal do Brasil

Scala, Java, Spring Boot, SQL, Elasticsearch, JavaScript, HTML, CSS, TypeScript...

Câmara dos Deputados

Linux, Java, SQL, Liferay, jQuery, JavaScript, Apache Wicket, Spring MVC...

Secretaria do Tesouro Nacional

Functional Requirements, Java, Source Code Review...

Experience

Linux - 16 years
Software Engineering - 16 years
Databases - 13 years
Java - 13 years
Spring - 13 years
SQL - 13 years
Functional Programming - 5 years
TypeScript - 2 years

Availability

Part-time

Preferred Environment

Linux, Java, Spring, TypeScript, React, Kotlin, Docker

The most amazing...

...project I've worked on is the legislation portal for the Brazilian Federal Senate.

Work Experience

Software Engineer

2012 - PRESENT

Senado Federal do Brasil

Developed the back end for the legal norms system used by the federal senate to register the current and past Brazilian federal legislation and correlated information.
Created an application to consolidate data from various sources to the National Congress home page.
Implemented a simple MQ using Java and Oracle for the internal protocol system to integrate the database with Alfresco.

Technologies: Scala, Java, Spring Boot, SQL, Elasticsearch, JavaScript, HTML, CSS, TypeScript, Docker, Angular, Apache Solr, Spring Batch, Spring Integration, Linux, Functional Programming, Oracle, APIs, Back-end, HTML5, REST APIs, API Integration, Spring JDBC, Java 8, Java 11, XML, Relational Databases, Apache Maven, DevOps, JUnit, HTTP REST, Back-end Development, Microservices, Object-oriented Programming (OOP), PostgreSQL

Software Analyst

2007 - 2012

Câmara dos Deputados

Developed, with a team of four developers, the e-democracia portal to allow better voter participation in the elaboration of dozens of bills using the Liferay Portal.
Built, as part of a team of ten developers, the Agência Câmara news portal which had up to 10,000 daily hits in the first year.
Trained 20 developers in the Apache Wicket framework that was adopted in 2011.

Technologies: Linux, Java, SQL, Liferay, jQuery, JavaScript, Apache Wicket, Spring MVC, REST APIs, XML, Relational Databases, Apache Maven, JUnit, HTTP REST, Back-end, Back-end Development, Object-oriented Programming (OOP)

IT Specialist

2005 - 2007

Secretaria do Tesouro Nacional

Gathered requirements for the Brazilian public debt software system.
Reviewed the code produced for the Brazilian public debt software system to follow the Brazilian national treasury guidelines.
Gathered requirements for a new module for the SIAFI software system to handle the federal government's loans to the states.

Technologies: Functional Requirements, Java, Source Code Review, Object-oriented Programming (OOP)

IT Consultant

2004 - 2005

Oi

Implanted, as a member of a team of eight developers, Metasolv's OMS workflow software to coordinate the work of 2,500 technicians in eight states.
Coordinated a team of six developers during the launch of Oi's mobile service to provide the de Sisgen software system.
Tuned the WebLogic application server to support the load of OMS workflow software.

Technologies: Linux, Unix, Java, Java EE, Workflow

System Administrator

2000 - 2004

Vivo

Managed a team of seven system administrators and network engineers to administer the UNIX and Linux servers and the network of Brasilia's data center of Vivo.
Designed, as a member of a team of five, the second Brasilia's data center of Vivo.
Specified an Oracle E10k server to replace two older servers for Vivo's billing system.

Technologies: Linux, Solaris, Unix, Cisco

Experience

Legislation Portal for the Brazilian Federal Senate

https://normas.leg.br

A web page for searching the Brazilian Federal Legislation and seeing the different versions of a norm in time.

As a back-end developer, I created the API that the front-end developers used to search and make the graphs available on the page.

Education

2011 - 2012

Bachelor's Degree in Mathematics

Universidade de Brasília - Brasília, DF, Brazil

1990 - 1996

Bachelor's Degree in Computer Science

Universidade de Brasília - Brasília, DF, Brazil

Skills

Libraries/APIs

REST APIs, React, jQuery

Tools

Apache Maven, Apache Solr

Languages

Java, TypeScript, SQL, JavaScript, HTML, HTML5, Java 8, Java 11, Kotlin, C++, Assembly, C, Scala, CSS, XML

Frameworks

Spring, Spring Boot, Spring MVC, Spring JDBC, Angular, Spring Batch, Spring Integration, Apache Wicket, JUnit

Paradigms

REST, Functional Programming, Object-oriented Programming (OOP), DevOps, Microservices

Platforms

Linux, Unix, Oracle, Docker, Java EE, Solaris

Storage

Databases, Relational Databases, Elasticsearch, PostgreSQL

Other

Software Engineering, APIs, Back-end, API Integration, HTTP REST, Back-end Development, Algorithms, Data Structures, Compilers, Abstract Algebra, Number Theory, Linear Algebra, Calculus, Numerical Analysis, Liferay, Functional Requirements, Source Code Review, Workflow, Cisco

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