Charles Sal Email & Phone Number

Brazil

- Provided guidance and technical support to team members, promoting best practices, structured code reviews, and professional growth within the team.- Led the design and evolution of system architecture, ensuring scalability, security, and alignment with business goals.- Identified and resolved obstacles in critical systems, focusing on improving efficiency and reducing operational costs.

Fintech from the Santander Group focused on B2B and B2C investments.As a senior software engineer on the product team, I design, develop, and deliver high-performance, scalable solutions that elevate the user experience for clients leveraging our escrow product.- Dynamic Contract Management System: Designed and implemented a scalable, dynamic system that reduced manual intervention in B2B transactions, streamlining processes and improving operational efficiency. Collaborated with the product team on Figma designs, proactively suggesting UX improvements to enhance client satisfaction.- UI/UX Development: Built intuitive interfaces with React and Ant Design (AntD), optimizing usability and ensuring a seamless experience for platform users.- Automation Workflows: Developed serverless transaction processing workflows using DynamoDB, resulting in faster, more reliable operations for end-users.- Backend Optimization: Created robust solutions with Node.js and frameworks like NestJS and Express, enabling the platform to scale effortlessly while maintaining high performance during peak transaction volumes.- User-Centric Enhancements: Enhanced a contract simulator platform's UX to simplify user interaction and increase adoption.- Technical Leadership: Provided input in technical refinement meetings to identify and prioritize platform improvements. Promoted clean code principles, led code reviews, and ensured efficient project delivery through Agile methodologies (Scrum/Kanban), JIRA, and version control (Git/GitLab).

Startup with a core product focused on vehicle registration and sales.- Development and maintenance of a web application for managing customers and vehicles and a catalog with more than 1M+ of cars. I worked as a frontend using mainly react with own design system, style guide components (storybook), redux/sagas for managing global states, restAPI and Typescript. Integration with third-party access login system and use of access control list policy.- Built and improved some screens and components in another project that used NextJs, GraphQl and react-query, improving the performance of some requests.- Use of agile methodologies such as kanban, CI/CD pipelines, task control with Trello, versioning repositories with git/GitLab and code reviews.

Startup that has a main product aimed at matching content producers and advertising campaigns through the analysis of social media data.- Development and maintenance of a web application for searching creators and creating marketing campaigns. I worked as a frontend in creating and improving reusable components using react with styled-components, redux/sagas for managing global states and restAPI. Built templates for emails using HTML and CSS.- Use of agile methodologies such as Scrum, task control with Clubhouse, versioning repositories with git/Github and integration tests using jest.

- Built an entire dashboard with token generation, image upload and email triggering system using Nodeand ReactJS- Built several SPA using responsive web design- Algolia applied to a blog powered by Gatsby for instant search