Jeferson de Souza
São Paulo, São Paulo, Brazil
Summary
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SeniorJeferson De Souza is a front-end-focused Software Engineer and current Lead with around a decade of experience building user-centric web and mobile applications, primarily with React and React Native. He has delivered production features and led migrations across fintechs, edtechs and consulting engagements, and recently drove a data migration (tombamento) and microservice integrations using Python, FastAPI/Flask, RabbitMQ and PostgreSQL. Comfortable shifting between front-end and back-end responsibilities, he has championed TypeScript adoption, testing with Jest, DevContainer/Docker setups and Keycloak-based auth in real projects. A lifelong tinkerer who started coding at 13, he combines hands-on implementation with stakeholder-facing design and prototyping (UML, Figma), and is finishing a Computer Science degree while continuing professional growth. Notably, he balances tech leadership with active coding—moving from Tech Lead back into hands-on engineering to deliver critical integrations that enable product cross-sell and platform consolidation.
10 years of coding experience
Github Skills (1)
rdf2
Github contributions (5)
toroumm/ontology_swim
May 2017 - Aug 2017
Contributions:22 commits, 4 PRs, 20 pushes in 2 months
faaeurocontrolobofoundryextract-datardf
toroumm/complex_networks
Oct 2016 - May 2017
Contributions:6 pushes, 1 branch in 6 months
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