Tarcisio is available for hire

Tarcisio Xavier Gruppi

Verified Expert in Engineering

API Developer

Juiz de Fora - State of Minas Gerais, Brazil

Toptal member since December 5, 2016

Expertise

Back-end Serverless JavaScript Go Node.js MongoDB Shell Redis WebSockets Linux Git Docker SQL PHP React API Development

Bio

With over 15 years of extensive experience in web development, Tarcisio has a solid foundation in PHP, which he worked with for several years. His current focus is leveraging Go and JavaScript/TypeScript to develop robust back-end services. Tarcisio is committed to continuously learning new technologies that can help him deliver outstanding software.

Portfolio

Countifi (via Toptal)

Redis, MongoDB, Node.js, Amazon Mechanical Turk (MTurk), MTurk API...

WedPics (via Toptal)

Amazon Web Services (AWS), JavaScript, Go

Petrasoft, Inc. (via Toptal)

React, JavaScript

Experience

Back-end - 15 years JavaScript - 14 years Go - 10 years MongoDB - 8 years Docker - 8 years Git - 8 years APIs - 8 years Redis - 5 years

Availability

Part-time

Preferred Environment

Linux, Git, Vendor Independent Messaging (VIM), Neoim Text Editor, Vi, Visual Studio Code (VS Code)

The most amazing...

...project I worked on required me to learn how PDFs work to be able to parse, process, and generate over 10GB daily in a processing pipeline for printers.

Work Experience

Back-end Developer

2018 - 2022

Countifi (via Toptal)

Planned and created the main API using AWS Lambda for high availability, Node.js to make it easier for other developers to help in the project, and MongoDB because it allowed us to quickly change the data structure as needed for each use case.
Created a secondary API that runs over AWS EC2 to host processes that run for a few seconds and work on large datasets.
Wrote services that run on Raspberry Pi devices installed in warehouses. The services are designed to be reliable without any human intervention and written in Go for reliability and ease of deployment.

Technologies: Redis, MongoDB, Node.js, Amazon Mechanical Turk (MTurk), MTurk API, Raspberry Pi, Serverless

Back-end Developer

2018 - 2019

WedPics (via Toptal)

Maintained the back-end services.
Updated the back end to be GDPR compliant.
Helped with the planning and execution of the service's shutdown.

Technologies: Amazon Web Services (AWS), JavaScript, Go

Freelance JavaScript Developer

2017 - 2018

Petrasoft, Inc. (via Toptal)

Created a web app to look and work similar to the existing desktop app.
Created automated tests for critical or hard to test code.
Created a dynamic application that could change based on where it is running (desktop or mobile).

Technologies: React, JavaScript

Web Developer

2014 - 2016

Green Letterbox

Created the service that receives, standardizes, and routes the jobs from the clients. This solution was composed by nine Go services working together.
Created the React.js applications used for the client's dashboard, inbox, settings, etc.
Introduced the microservices architecture to replace the previous monolithic application.
Introduced Docker to facilitate the deployment process and to eliminate problems caused by different environments.
Provided support on API design and integration.

Technologies: JavaScript, Go

IT Teacher

2012 - 2014

FIEMG

Developed my skill on how to transmit technology-related ideas to non-technology related people as a teacher. I learned a lot about management, planning, and other things related to development.
Created new course material for C, PHP, JavaScript, and Linux.
Provided technical expertise for accurate information.
Provided support to teachers in IT-related subjects.
Organized events for the students and the community.

Technologies: Linux, JavaScript

Web Development Manager

2011 - 2012

People Interactive Brasil

Developed prototypes and proof-of-concept software.
Validated ideas and handled planning.
Managed outsourced projects.
Developed internal solutions.
Provided a technical view in meetings.

Technologies: JavaScript

Experience

Json2react

https://github.com/txgruppi/json2react

A library that creates React.js components from a JSON structure. It allows the UI to be generated dynamically.

Parseargs.js

https://github.com/txgruppi/parseargs.js

A string argument parser that understands quotes and backslashes. It parses arguments in a similar way of how Redis does it. It was created to be used as a argument parser for a Telegram Bot.

Command

https://github.com/txgruppi/command

A easy to use command pattern library for Go with a thread-safe serial and parallel dispatcher.

Acl-go

https://github.com/nproc/acl-go

A very simple, reliable, multiple storage access control list for Go.

Parseargs-go

https://github.com/nproc/parseargs-go

A port of parseargs.js to Go. A string argument parser that understands quotes and backslashes. It parses arguments in a similar way of how Redis does it. It was created to be used as a argument parser for a Telegram Bot.

Education

2007 - 2010

Bachelor's Degree in Web Development

Instituto Vianna Júnior - Juiz de Fora, Minas Gerais, Brazil

Skills

Libraries/APIs

Node.js, React, MTurk API

Tools

Shell, Git, Tmux, Vim Text Editor, Vendor Independent Messaging (VIM), Neoim Text Editor

Languages

Go, JavaScript, SQL, PHP

Paradigms

REST, Functional Programming

Storage

MongoDB, Redis

Platforms

Linux, Docker, Raspberry Pi, Amazon Web Services (AWS), Visual Studio Code (VS Code)

Other

Serverless, APIs, Back-end, WebSockets, Amazon Mechanical Turk (MTurk), Vi

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