Clayton Marriel Claudio Santana

I’m currently working as a Senior Front-End Engineer (Angular), building and evolving enterprise web applications with a strong focus on scalability, performance, and user experience.

In my role, I:

Develop responsive, high-quality UI screens following a custom Design System (DLS) to ensure consistency and accessibility across the product

Work with Angular versioning and upgrades, helping keep

I worked on two major enterprise projects, delivering new features and modernizing critical systems using Angular. Oi (Legacy Project – Angular 8): I maintained and evolved a legacy application built on Angular 8, creating new interfaces and implementing new functionalities while ensuring stability, performance, and consistency with existing flows. Caterpillar (Rebuild from Scratch): I led the fro

During this experience, I worked on a product designed to engage partner brokers and provide real-time visibility into points, rankings, and project information.

I developed both web and mobile applications using React/Next.js and React Native, integrating them with a robust backend built in Node.js/NestJS. On the backend side, I implemented APIs responsible for managing scoring rules, rankings,

In this role, I contributed to the modernization and evolution of mission-critical systems across multiple domains, including POS, IoT, e-learning, and e-commerce. The goal was to deliver new functionality, improve efficiency, and update legacy products to modern standards—without compromising reliability.

I worked end-to-end across several initiatives, from UX/UI design in Figma to implementatio

I developed end-to-end applications using React.js and Vue.js, working from initial discovery and UI definition through implementation and release. Throughout the process, I focused on usability, design consistency, performance, and maintainable code, collaborating closely with product and design to translate requirements into intuitive user experiences.

Result: I delivered reliable, well-structu

I provided technical support via chat and phone, handled computer maintenance and setup (installation, configuration, troubleshooting), and assisted with customer data extraction and migration processes.

Result: I helped ensure business continuity by delivering fast, reliable support for internal users and contributing to the safe and accurate migration of critical customer data.

Pursued a Bachelor's degree in Information Technology/Information Systems, focusing on the fundamentals of computing and systems development.