Alan Serafim is a Senior Software Engineer based in Espírito Santo, Brazil, with 11 years of experience building full-stack systems and transaction platforms for high-traffic consumer applications. He has driven end-to-end features like OLX's checkout and professional seller analytics, combining React/React Native frontends with GraphQL, Node.js, Python ETLs and AWS serverless architectures. At Creditas he worked across Kotlin, TypeScript and microfrontends, and today contributes to IPSY while maintaining strong backend expertise in validation logic—demonstrated by deep contributions to the popular validatorjs library enhancing wildcard and nested-rule validation. Comfortable navigating both product-facing UI work and data pipelines, he also mentors teams and shapes code structure and deployment via Terraform and Docker. Alan brings a practical, polyglot approach to solving complex transaction and data problems in production.
11 years of coding experience
6 years of employment as a software developer
Bacharel em Sistemas de informação, Computer Software Engineering, Bacharel em Sistemas de informação, Computer Software Engineering at FEUC - Fundação Educacional Unificada Campograndense.
Técnico em Informatica, Information Technology, Técnico em Informatica, Information Technology at colegio gunnar vingren
A data validation library in JavaScript for the browser and Node.js, inspired by Laravel's Validator.
Role in this project:
Back-end Developer
Contributions:6 commits, 1 PR, 15 comments in 5 days
Contributions summary:Alan primarily focused on enhancing the validation capabilities of the `validatorjs` library. Their contributions included implementing features for wildcard validation, enabling more flexible rule definitions within nested structures. The changes also involved modifying and refactoring the core validation logic, and updating test cases to reflect the added functionality. This demonstrates a deep understanding of the library's inner workings.
Contributions:8 commits, 9 PRs, 7 pushes in 5 months
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