Arthur Barros
ML EngineerAI is analyzing your overall score…
Identifying your key strengths…
Evaluating your skill match against the job requirements…
Assessing your cultural and operational fit
AI is analyzing your overall score…
Identifying your key strengths…
Evaluating your skill match against the job requirements…
Assessing your cultural and operational fit
Co-Founder & CTO at quatrodois
I am a technology professional, currently serving as a Co-Founder & CTO at quatrodois. My main interest lies in using technology, especially Artificial Intelligence, to create products and systems that solve real-world problems, while also building environments where engineering teams can do their best work. My professional journey began with the technical foundation: software and DevOps engineering. I had the opportunity to build payment systems, evangelize technologies like Docker, and, over time, delve deeper into Machine Learning, architecting high-traffic platforms (+10k req/s) and creating AI solutions that earned recognition from partners like Google. Today, my work is about connecting product vision with technical execution. This means defining the architecture and cultivating a culture of MLOps and DevOps that empowers the team to create, test, and deliver value continuously and reliably. I believe that having traveled this path, from a technical role to leadership, has given me a very practical perspective on how technology can, and should, serve business strategy. Key Areas: Technical Leadership, Cloud Architecture (AWS, GCP, Azure), Artificial Intelligence & Machine Learning, MLOps & DevOps, High-Performance Systems and Product Development.
Udacity
Nanodegree, Deep Learning Foundation
January 1, 2017 – January 1, 2017
UNIFACCAMP Centro Universitário Campo Limpo Paulista
Bachelor of Applied Science (BASc), Computer Science
January 1, 2009 – January 1, 2012
quatrodois
Co-Founder & CTO
September 1, 2023 – Present
São Paulo, Brazil
FanHub
CTO
December 1, 2021 – July 1, 2024
São Paulo, Brazil
FanHub
Lead Data Scientist
December 1, 2020 – January 1, 2022
São Paulo, Brazil
FCamara Consulting & Training
Senior Software Architect
November 1, 2020 – December 1, 2020
São Paulo, Brazil · Remote
FanHub
Senior Software Architect
July 1, 2020 – December 1, 2020
São Paulo, Brazil
Beaver Soluções Tecnológicas
Senior Software Engineer
April 1, 2020 – November 1, 2020
Greater São Paulo Area · Remote
Osorno Analytics - Account-Based Marketing & AI Solution
Machine Learning Engineer
December 1, 2017 – August 1, 2020
São Paulo, Brazil · Remote
FS
Machine Learning Engineer
May 1, 2017 – May 1, 2018
FS
Software Engineering Specialist
December 1, 2016 – May 1, 2017
FS
Senior Software Engineer
September 1, 2016 – December 1, 2016
PayOnDelivery
Senior DevOps Engineer
January 1, 2016 – October 1, 2016
Houston, Texas, United States · Remote
Oi S.A
Senior Software Engineer
March 1, 2015 – September 1, 2016
On-site
Oi S.A
Software Engineer
June 1, 2013 – September 1, 2015
On-site
The Boutique
Software Engineer
March 1, 2012 – June 1, 2013
Greater São Paulo Area · On-site
PadokNet
Lead Software Engineer
March 1, 2011 – February 1, 2012
Greater São Paulo Area · On-site
Focoprime Inteligência em Tecnologia
Software Engineer
May 1, 2010 – March 1, 2011
Greater São Paulo Area · On-site
PadokNet
Junior Software Engineer
February 1, 2010 – April 1, 2010
Greater São Paulo Area · On-site
JundPel
Administrative Assistant Intern
January 1, 2006 – February 1, 2010
Jundiaí, São Paulo, Brazil · On-site
Anomaly Detection with sklearn using Guassian Distribution
July 1, 2017 – Present
The goal of this project was to create a simple example on how to extract value from simple features of a request log.
Symbot.io
June 1, 2016 – October 1, 2017
Symbot.io was a music service based on Discordapp and Youtube. The goal is to provide a free music Bot-as-a-service to be used together with your friends on a Discord guild. It was streaming a average of 100+ guilds simultaneously, with 800+ guilds subscribed and 20,000+ users. In a single core 512 mb instance. It was built using nodejs and mongoose. It was hosted on Heroku using FFmpeg build pack.
Entirex bridge
October 1, 2014 – Present
Entirex bridge was created to solve a API proxy pattern, internally we have several webservices endpoint and each client was implementing his own schema to solve this problem. With entirex bridge we were able to have a single maintence point. It was built with Python and Tornado.
Pagamento Oi Internet
July 1, 2014 – Present
Pagamento Oi Internet, is a solid payment platform built on top of CodeIgniter and MySQL. Using direct integration with major banks and credit cards and also payment using the cell phone through Zenvia integration (payment over SMS)
Start
April 1, 2014 – Present
Start is responsible for bringing greater visibility of the allocation of human resources in internal and external projects of the company. It is a web application using PHP , MySQL , HTML , Bootstrap 3 , CSS , JavaScript (jQuery). I was the developer on this project.
E-commerce Plataform
March 1, 2012 – June 1, 2013
This plataform was a web application using PHP , MySQL , HTML , Bootstrap 3 , CSS , JavaScript (jQuery). In this project. I was responsible for all platform security issues and billing, integrating the major gateway of payment in Brazil, and also the integration and validation of the fraud analysis system.
Orion ERP
March 1, 2011 – September 1, 2012
Orion was a ERP focused on small and medium companies. It is a web application using PHP , MySQL , HTML , CSS , JavaScript (jQuery). We were responsible for re-structure the issue of NF-e (Nota Fiscal Eletrônica) and SPED Fiscal Pis-Cofins. In this project I acted both as Scrum Master and Software Developer.
IA para Negócios
StartSe University
June 24, 2026 – Present
LGPD na Prática
Udemy
June 24, 2026 – Present
Python for Financial Analysis and Algorithmic Trading
Udemy
June 24, 2026 – Present
Deep Learning A-Z™: Hands-On Artificial Neural Networks
Udemy
June 24, 2026 – Present
Google Container Engine and Kubernetes
Google Cloud Certified
June 24, 2026 – Present
Swift Language 101
iai? Instituto de Artes Interativas
June 24, 2026 – Present
Knowledge-Based AI: Cognitive Systems
Udacity
June 24, 2026 – Present
Anatomy of Backbone.js
Code School
June 24, 2026 – Present
Developing Scalable Apps in Python
Udacity
June 24, 2026 – Present
Ethereum Blockchain Developer: Build Projects Using Solidity
Udemy
June 24, 2026 – Present
Deep Learning
Udacity
June 24, 2026 – Present
Scalable Microservices with Kubernetes
Udacity
June 24, 2026 – Present
Real-time Web with Node.js
Code School
June 24, 2026 – Present
Cultural Fit Analysis
The candidate has a diverse project background, ranging from ERP systems to e-commerce and music services, demonstrating adaptability. The career progression from Software Engineer to CTO roles, including co-founding a company, indicates an entrepreneurial spirit and a drive for impact. The target role of ML Engineer aligns well with their recent and significant experience in ML/AI, data science, and MLOps. However, the project descriptions are primarily personal and lack specific details on team collaboration or company-wide impact for some older projects, which could be a minor area for further exploration regarding cultural fit in a larger corporate setting.
Soft Skills & Operational Fit
The candidate's experience as Co-Founder & CTO, CTO, and Lead Data Scientist suggests strong leadership, strategic thinking, and operational management skills. Descriptions highlight data-driven management, radical transparency, and building high-performing teams, indicating a good fit for a collaborative and results-oriented environment. The focus on cost optimization and efficiency (e.g., custom system for batch processing APIs on FastAPI for AWS EC2 GPU instances) demonstrates a practical, business-oriented approach to technical challenges.