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Arthur Barbosa Junior

@arthurbarbosajunior

Tech Lead at Itaú Unibanco modernizing vehicle financing and commercial tools, including an AI-powered dealership prioritization product.

Brazil
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At Itaú Unibanco, I lead technical work across vehicle financing, commercial tools, and security. I integrated preventive fraud monitoring into the consumer vehicle financing flow, and that integration has been in production since launch.

I led the modernization of commercial tools through a custom Dynamics 365 product now used by about 40 remote sales professionals. It organizes dealership engagement and uses AI to rank priorities based on market signals and internal data.

I’m currently leading the modernization of the business vehicle financing workflow. Its simulation stage is operational, while the wider flow, including document signing, remains in development.

Earlier, I designed a serverless AWS data lake architecture for Grupo EMS at Globant and developed data processing projects for Cielo at CI&T. My work has included data pipelines, APIs, and software products, using technologies such as Java, Python, Spark, SQL, AWS, and Terraform.

Experience

Work history, roles, and key accomplishments

IU
Current

Tech Lead - Engenheiro de Software Sênior

Dec 2022 - Present (3 years 11 months)

Atuo na liderança técnica de squads de produtos digitais nas frentes de financiamento veicular PJ e PF, ferramentas comerciais e segurança, em parceria com Produto e equipes de frontend, backend, analytics, QA, CX e processos.
• Conduzi a integração da monitoria preventiva de fraudes ao fluxo de contratação de financiamento veicular PF. Li e mapeei o código da aplicação monolítica, defini a comun

IU
Current

Tech Lead | Senior Software Engineer

Dec 2022 - Present (3 years 11 months)

I provide technical leadership for squads developing digital products across business and consumer vehicle financing, commercial tools, and security. I work closely with Product and with frontend, backend, analytics, QA, Customer Experience, and process teams.
- Led the integration of preventive fraud monitoring into the consumer vehicle financing application flow. I reviewed and mapped the monoli

Superprof logoSU

Private Programming Tutor

Sep 2017 - Dec 2024 (7 years 3 months)

Taught one-on-one programming lessons, both in person and remotely, adapting my teaching approach to each student’s needs and level of experience.

Covered programming fundamentals, problem-solving, and application development in C, C++, Java, Python, JavaScript, and Ruby, focusing on helping students understand core concepts and become more independent.

Superprof logoSU

Professor Particular

Sep 2017 - Dec 2024 (7 years 3 months)

Ministrei aulas individuais de programação, presenciais e remotas, adaptando a abordagem às necessidades e ao nível de conhecimento de cada aluno.

Trabalhei fundamentos de programação, resolução de problemas e desenvolvimento de aplicações em C, C++, Java, Python, JavaScript e Ruby, com foco na compreensão dos conceitos e na autonomia dos alunos.

SO

Engenheiro de Dados Senior

Somos

Nov 2021 - Aug 2022 (9 months)

Desenvolvi processos ETL para sanitizar e padronizar dados coletados em formulários de uma iniciativa de causa coletiva relacionada às pessoas afetadas pelo rompimento da barragem em Brumadinho. O trabalho tratava respostas livres e variações de grafia, como diferentes formas de registrar municípios, preparando os dados para uso consistente.
Tecnologias: Python, Spark, AWS Glue, Amazon S3, Step Fu

Globant logoGL

Arquiteto de Dados

Jul 2021 - Nov 2021 (4 months)

• Desenhei uma arquitetura serverless na AWS para um data lake do Grupo EMS, estruturado em camadas bronze, prata e ouro, com objetivo de centralizar dados e preparar uma base para análises e futuras iniciativas de ciência de dados.
• Implementei integrações batch e cadeias de sanitização com AWS Glue; a arquitetura evoluiu para orquestração com Step Functions e uso do DataBrew. A arquitetura fo

Globant logoGL

Data Architect

Jul 2021 - Nov 2021 (4 months)

- Designed a serverless AWS architecture for Grupo EMS’s data lake, organized into bronze, silver, and gold layers. The goal was to centralize data and establish a foundation for analytics and future data science initiatives.
- Implemented batch integrations and data sanitization pipelines using AWS Glue. The architecture evolved to include orchestration with Step Functions and the use of DataBrew

CI&T logoCI

Mid-Level Software Engineer

Dec 2019 - Jul 2021 (1 year 7 months)

Data and software projects for Cielo and Konica Minolta
- Cielo: Built data processing projects from the ground up in a Hadoop data lake, handling fixed-width EDI files and working with raw, cleansed, and gold data layers. Developed processing routines with Spark in Java and later in Python/PySpark, following rigorous delivery and quality standards.
- Konica Minolta: Developed a Debian package in

CI&T logoCI

Engenheiro de Software Pleno

Dec 2019 - Jul 2021 (1 year 7 months)

Projetos de dados e software para Cielo e Konica Minolta.
• Cielo: criei projetos de processamento de dados do zero em um data lake Hadoop, tratando arquivos EDI posicionais e trabalhando com as camadas raw, sanitizada e ouro. Desenvolvi rotinas com Spark em Java e, depois, Python/PySpark, seguindo padrões rigorosos de entrega e qualidade.
• Konica Minolta: desenvolvi em Python um pacote Debian

MM

Mid-Level Software Engineer

Maio Marketing

Jun 2019 - Nov 2019 (5 months)

- Contributed to the evolution of DataLive, the company’s flagship product, by proposing and developing solutions with the team. Worked on restructuring microservices, redesigning databases, and building integrations.
- Developed services using Python, Flask, Node.js, and TypeScript; implemented automated tests, documented APIs, and set up application event logging. Also created data analysis rout

dti digital logoDD

Full-Stack Developer

dti digital

Oct 2018 - Jun 2019 (8 months)

Developed digital products for Supermercados BH, Serasa Experian, and Falconi across projects with diverse business needs and architectures.

- **Supermercados BH:** Developed a PWA for store managers, suppliers, and other operational stakeholders to simplify processes, reduce manual tasks, and cut paper usage.
- **Serasa Experian:** Worked on the eCred platform and integrations with partner finan

LO

Software Developer

Loovi

Feb 2018 - Oct 2018 (8 months)

- Developed internal systems and web applications for a vehicle insurance company, from requirements analysis and prototyping through feature implementation, testing, and deployment.
- Built management solutions with React and Ruby on Rails, automated internal processes with Python, and maintained the company website using PHP/Laravel. Also implemented integrations with the Google Maps API and wro

RF

IT Intern

Rádio UFMG Educativa 104,5 FM

Mar 2017 - Feb 2018 (11 months)

Worked on the Technical and Technology team, supporting Linux environments, the local network, and the radio’s streaming services.

Developed automation scripts using Python and Shell, and contributed to system monitoring, troubleshooting, and technical report writing. Also debugged and documented applications developed in C++.

Education

Degrees, certifications, and relevant coursework

IU

Itaú Unibanco

Practitioner - D&A Foundation (pt-BR)

May 2024

XP Educação logoXE

XP Educação

Pós-graduação Lato Sensu - MBA, Arquitetura de Software e Soluções

2022 - 2022

Foram 3 módulos, um relativo a arquitetura de software, outro relativo a arquitetura de soluções e o último relativo ao Projeto Aplicado para colocarmos em prática o que aprendemos ao longo do curso.

UF

UFMG

Bacharelado em Engenharia, Engenharia de Controle e Automação

2013 - 2020

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