Chinnon Santos
Staff Software Engineer - Acquisition B2C & B2B2C Teams at Creditas
Goiás, Brazil
Summary
👤
Senior🎓
Top SchoolChinnon Santos is a staff software engineer with 10 years of experience leading backend and acquisition teams across fintech, payments and blockchain projects in Brazil and LATAM. He blends hands-on engineering in Kotlin/Java, TypeScript and Node.js with architecture, cloud-native microservices, event-driven design (Kafka, SQS/SNS) and observability (OpenTelemetry, Datadog) to deliver scalable, auditable systems for banks and platforms serving millions of users. As a technical lead he excels at resolving product–engineering conflicts, defining roadmaps, mentoring engineers and refining requirements into shippable plans. His open-source work includes modernizing NFC-e fiscal integrations and maintaining comprehensive geo-datasets, reflecting a practical focus on compliance and data integrity. A self-taught, disciplined technologist and writer, he pairs operational rigor from Core Banking and PIX projects with a curiosity for AI-enabled acquisition flows (WhatsApp/Twilio + agents and prompt engineering). Based in Goiás, Brazil, he combines startup grit from earlier ventures with enterprise-grade delivery across cloud providers and blockchain deployments.
10 years of coding experience
9 years of employment as a software developer
English Language, English Language at Minds English School - mindsidiomas.com.brIntensive English Course - Private Teacher, including the Business English module, Língua Inglesa e Literaturas de Língua Inglesa, Intensive English Course - Private Teacher, including the Business English module, Língua Inglesa e Literaturas de Língua Inglesa at EF English LiveBachelor, Computer Science, Bachelor, Computer Science at Universidade PaulistaCS50’s Computer Science for Business Professionals, Computer Science, Computer Science, CS50’s Computer Science for Business Professionals, Computer Science, Computer Science at Harvard UniversityEnglish Course - Interactive New W6, English Language, English Course - Interactive New W6, English Language at Wizard by Pearson
Portuguese, English
Stackoverflow
445reputation
328kreached
2answers
3questions
Github Skills (18)
mysql10
data-modeling10
php10
sql10
database-design10
xml10
webservice9
soap9
database-schema9
qr-code9
dart6
hash6
extends6
flutter6
compojure6
Programming languages (8)
Github contributions (5)
chinnonsantos/sql-paises-estados-cidades
Mar 2016 - Oct 2021
SQL de todos os Países e Nações (c/ Código do Portal do Comércio Exterior ou BACEN) + Estados e Federações Brasileiras (c/ DDD e Código do IBGE) + Cidades e Municípios Brasileiros (c/ Código do IBGE), incluindo as 31 regiões administrativas do DF, Ilhas e Áreas Remotas do Mundo.
Role in this project:
Database Engineer / Database Administrator
Database Engineer / Database AdministratorContributions:1 release, 40 commits, 8 PRs in 5 years 7 months
Contributions summary:Chinnon primarily focused on database schema design and data population within this repository. Their commits involve creating and modifying SQL tables, inserting data for countries, states, and cities, and updating existing data to include new information, such as BACEN codes and ISO codes. The contributions are centered around structuring and maintaining a comprehensive dataset for geographical information, including the addition of the "Exterior" state.
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nfephp-org/nfephp
May 2016 - May 2016
PROJETO DEPRECATED use sped-nfe
Role in this project:Back-end Developer
Back-end DeveloperContributions:11 commits, 8 PRs, 11 comments in 15 days
Contributions summary:Chinnon's primary contribution involved adapting the `nfephp-org/nfephp` repository, which is described as deprecated and superseded by `sped-nfe`, for handling of NFC-e (Nota Fiscal de Consumidor Eletrônica) specifications. They focused on updating the codebase to comply with the latest DANFE NFC-e and QR Code technical specifications, including adjustments to the naming conventions (e.g., 'Token' to 'CSC') and implementing administrative resources for the Contribuinte's Security Code (CSC). This included additions for the administration of CSC through a WebService and modifications across several key files, and a demonstration of the use of the code.
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