Jeferson Daniel
Programmer at VIX, Inc.
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolJeferson Daniel is a seasoned full-stack programmer with 12 years of experience building backend systems and data-driven applications across Python and PHP stacks. Based in São Paulo, he currently develops data processing pipelines and OTT applications at VIX using tools like Pandas and BigQuery while also shipping React Native front-ends. His background includes payment and VoIP integrations, booking and licensing systems, and LMS platforms, reflecting strong experience integrating APIs and legacy formats. An active open-source contributor, he has improved CNAB format processing in a popular PHP repo by refactoring code, adding validation and PHPUnit tests to make bank remittance/return parsing more reliable. Comfortable across databases, message systems and both modern and legacy web frameworks, he combines pragmatic engineering with a focus on maintainability and testability. Colleagues would describe him as a practical problem solver who prefers improving developer experience through better tooling and organization.
11 years of coding experience
5 years of employment as a software developer
Análise e Desenvolvimento de Sistemas, Information Technology, Análise e Desenvolvimento de Sistemas, Information Technology at Universidade Braz CubasEscolas Técnicas Estaduais
Stackoverflow
173reputation
5kreached
1answer
4questions
Github Skills (14)
php10
composer10
phpunit10
testing10
yaml9
cocoapods6
firebase-analytics6
nodejs6
asterisk-ami6
javascript6
firebase6
android6
asterisk6
agi6
Programming languages (10)
Github contributions (5)
andersondanilo/CnabPHP
Jun 2014 - Jan 2017
Projeto para criar arquivos de remessas e processar arquivos de retorno no formato CNAB, utilizado nos bancos geralmente para boleto bancário.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 29 commits, 1 PR in 2 years 8 months
Contributions summary:Jeferson primarily contributed to refactoring and improving the codebase, focusing on the use of composer and phpunit for testing. The commits reveal the development of validation logic and data loading functionalities within the CNAB format processing library. The user also made changes to data structures and code organization, as well as corrections to date formatting, improving the library's ability to parse and process CNAB files.
pythonprojetoretornonoscnab
jefersondaniel/sirenphp
Jun 2014 - Mar 2016
Contributions:4 releases, 11 commits, 5 PRs in 1 year 9 months
sirenphphypermedia
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