Sebastián Gregorio De Las Heras Email & Phone Number

Santiago, Cl

Plano, Texas, United States

Santiago, Santiago Metropolitan Region, Chile

Digital Retail Backbone: Product Catalog• Led and designed the front-end of a product information management (PIM) platform from scratch using pre-established backend APIs.• Designed a scalable and business-agnostic PIM platform that can be offered as a SaaS to other E-commerce businesses.• Designed UI and user flows of the PIM platform in Figma, in collaboration with the team.• Established testing principles and guidelines for the front-end team.• Provided business and tech-related guidance to new and struggling team members through code reviews and pair programming sessions.• Set up CI/CD from scratch using GitLab and Firebase for hosting HTTP resources. Configured deployments over different environments, business units, and implemented feature flags for customization.• Developed exhaustive automated testing using react-testing-library and Mock service worker for offline testing and showcasing the platform.• Developed and improved reusable component library designs for the core digital retail backbone platform, implemented with React and Typescript to improve developer experience.• Monitored system health during critical events using Grafana and Google Cloud Platform metrics.• Employed React to fit into the current ecosystem and strongly advocated Typescript for maintainability and developer experience.• Implemented new features on the backend API built with Node using Fastify and Postgres.Outcome:The project successfully streamlined product information and taxonomy management across the Falabella conglomerate's e-commerce businesses in Latin America. The unified system replaced several disparate management systems and provided increased efficiency, accuracy, and scalability. The designed PIM platform was intended to be sold as a software-as-a-service (SaaS) product to other companies.

Santiago, Santiago Metropolitan Region, Chile

• Developed the front-end of a Software as a Service (SaaS) platform using the Google Maps API and Vue.js to provide real-time GPS tracking and fleet management capabilities.• Refactored the existing codebase to ensure the application was written to the highest code standards and optimized for performance.• Mentored the team on Typescript, Vue, and Cypress tech stacks to ensure the correct use of the tools.• Introduced Cypress for automated E2E testing to quickly identify and fix any bugs or issues before deployment.• Used Grafana to monitor application performance and identify areas that require further optimization.• Utilized the Microsoft Azure suite for continuous integration and continuous deployment to automate the deployment process.• Consumed the Google Maps API to provide real-time GPS tracking of vehicles and assets.

Santiago, Santiago Metropolitan Region, Chile

Cencosud Loyalty rewards e-commerce• Led and designed the frontend solution for a cross-platform eCommerce from scratch.• Designed and developed React.js components using Next.js and TypeScript, resulting in a strongly typed, robust, and reliable codebase.• Implemented React Native components to build a cost-effective eCommerce platform, allowing web and native mobile development to access the same code base features.• Provided guidance and support to the team, ensuring high-quality standards and a good development experience.• Utilized Redux to consistently manage eCommerce state.• Ensured code quality through testing the purchase flow, from shopping cart to order generation, using Jest, React Testing Library, Cypress, and Cypress Testing Library for E2E testing.• Validated code quality using tools such as SonarQube, ESLint, React Testing Library, and CI/CD pipeline checks.• Deployed the application through a CI/CD process using Jenkins for rapid and reliable deployment of new features and bug fixes.• Incorporated Google Analytics to track user behavior and measure application performance.• Mentored junior developers through pair programming sessions, code reviews, and meetups.• Managed code changes using Git Flow to ensure the codebase was always up to date and manageable.• Communicated progress to stakeholders through regular updates.• Developed a frontend monorepo to better organize the codebase and facilitate efficient development.• Created a shareable components frontend library using Storybook, allowing for the quick development of reusable components.• Configured Webpack to create a consistent development environment and integrate the application with React Native for mobile development.

Santiago, Santiago Metropolitan Region, Chile

• Developed the front-end solution for a Dialysis platform from scratch to organize patient data and manage dialysis sessions for government healthcare workers.• Built a user interface using AngularJS, resulting in an interactive, responsive experience for users.• Developed unit tests to improve code quality and reduce software bugs.• Styled the platform using Sass and BEM conventions, creating an organized and maintainable CSS codebase.• Implemented various Gulp.js flows to automate tedious tasks.• Enabled easy access to patient records, automated scheduling of dialysis sessions, and secure sharing of patient information between healthcare providers through the Dialysis platform.• Provided analytics and reporting capabilities to better manage dialysis sessions and improve the quality of care.

Santiago, Santiago Metropolitan Region, Chile

• Developed customized document management solutions for prestigious clients such as the Chilean Ministry of Health, Civil Aviation Administration, and the National Library.• Conducted stakeholder meetings to determine requirements for document management solutions.• Developed various JavaScript and Java backend systems and APIs interfacing with Alfresco ECM-backed data.• Developed various frontend systems using AngularJS and jQuery.• Implemented a comprehensive system of digital document management that is secure, efficient, and user-friendly.• Consolidated all government documents into a single digital repository, enabling easy access and backup.• Enabled versioning, exporting, sharing, and collaboration on documents in a secure environment.

Diploma (Unfinished), Computer Software Engineering

Programador Analista, Computer Software Engineering