Carlos Eduardo Melo, Developer in Brasília - Federal District, Brazil
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Carlos Eduardo Melo

Verified Expert  in Engineering

Distributed Systems Developer

Location
Brasília - Federal District, Brazil
Toptal Member Since
June 9, 2017

Carlos has over ten years of experience developing enterprise applications. He's seasoned with both front and back-end engineering and specializes in developing highly scalable applications. Carlos likes to innovate and tackle complex problems. He communicates well and has worked with small and big teams.

Portfolio

AvantStay
Amazon Web Services (AWS), Kubernetes, React, Functional Programming, Scala...
Brazilian Federal Budget Office
PostgreSQL, MongoDB, Vue, Node.js, Docker, TypeScript, JavaScript, Scala, Java...
Self-employed
Ruby on Rails (RoR), Ruby, PostgreSQL, PHP, Java, Linux, Architecture

Experience

Availability

Part-time

Preferred Environment

IntelliJ IDEA, Git, Zsh, MacOS

The most amazing...

...project I created is a distributed applications library that eases the development of highly scalable applications.

Work Experience

VP of Engineering

2018 - PRESENT
AvantStay
  • Led multiple teams and supervised all architecture decisions and product development, from conception to delivery.
  • Moved the back-end application from an unreliable infrastructure based on AWS Beanstalk into Kubernetes.
  • Architected, implemented, and oversaw the evolution of all back-end systems supporting public and internal workflows.
  • Supported executives in making decisions by connecting multiple data sources through scraping or data polling using ETL processes to form a single source of truth.
  • Developed several systems using a reactive approach with Kafka as a message broker and gRPC as the microservices middleware.
Technologies: Amazon Web Services (AWS), Kubernetes, React, Functional Programming, Scala, Architecture

Lead Software Engineer

2012 - 2018
Brazilian Federal Budget Office
  • Developed several modules of the federal budget system; was involved in all development phases from requirements elicitation to testing and delivery.
  • Designed an architecture based on microservices; including testing, integration, and delivery processes, and a refactoring plan to split the application into independent modules.
  • Created a distributed systems library using Scala to ease the migration of a monolith to a microservices-based system, and to offer high availability and scalability by automatically provisioning new nodes.
  • Created reusable front-end components to be used throughout the application using Vue.js and TypeScript.
  • Acted as a technical leader of a team composed of 15 people.
Technologies: PostgreSQL, MongoDB, Vue, Node.js, Docker, TypeScript, JavaScript, Scala, Java, Jakarta EE, Architecture

Consultant

2010 - 2011
Self-employed
  • Helped several small and medium-sized businesses to establish an IT department.
  • Developed and maintained websites and management applications.
Technologies: Ruby on Rails (RoR), Ruby, PostgreSQL, PHP, Java, Linux, Architecture

Undergraduate Researcher

2007 - 2009
Federal University of Goias
  • Researched topics on reflective middleware for distributed systems.
  • Developed the integration and provisioning layer of a reflective middleware for distributed computing and multimedia delivery using Java and Python.
  • Developed the MPI interface of FlexiGrid—a flexible grid computing middleware, using C++.
Technologies: Distributed Systems, C++, Python, Java

SIOP

A Brazilian federal budget and planning system. It is used by all federal ministries and agencies to aid in the process of planning, resource allocation, and execution of public policies. The site can be accessed at the URL https://www.siop.gov.br/siop/.

Duna

https://github.com/cemelo/duna-core
A library and event bus service used to aid the development and deployment of microservices.

MetaORB

A highly configurable and adaptable reflective
middleware platform. Worked under supervision of Dr. Fabio M. Costa.

FlexiGrid

A flexible computational grid. This was a joint research project by 4 Brazilian universities. I worked under the supervision of Dr. Fabio M. Costa.

Core Java Instruction

I've lectured several Java classes—ranging from basic language syntax to the development of enterprise applications using the J2EE Platform.

Languages

CSS3, HTML5, Java, Scala, Kotlin, JavaScript, Ruby, SQL, Less, PHP, Elixir, Python, C++, TypeScript

Frameworks

Vert.x, Ruby on Rails (RoR), Phoenix, Bootstrap, Akka, Dropwizard, Play Framework, Express.js, Grails, Spring MVC, Spring

Libraries/APIs

Node.js, Vue, ReactiveX, React, jQuery, Socket.IO

Tools

SBT, Apache Maven, Gradle, Zsh, Git, IntelliJ IDEA

Platforms

Docker, Jakarta EE, Android, MacOS, Linux, Kubernetes, Amazon Web Services (AWS)

Other

Distributed Systems, Architecture

Paradigms

Distributed Computing, Parallel Computing, Functional Programming, Concurrent Programming, Reactive Programming, Agile Software Development

Storage

PostgreSQL, NoSQL, Redis, MongoDB

2006 - 2009

Bachelor's Degree in Computer Science

Federal University of Goiás - Goiânia, Brazil

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