Gustavo Salas

Full Stack Software Engineer

LynSoluciones•  November 2022 - September 2023•  Spain

- Led the design and development of the Paketea web application, including a Chrome Extension, which streamlined shipment order management. This increased processing speed tenfold, reducing order processing time from 30 minutes to 3 minutes. To expedite the workflow, scripts were developed to transform and import data from Excel files to MongoDB. Was implemented a Clean Architecture to facilitate future database migrations (Mongo, Express, Angular, Node) - Customized the web application MAPFRE to meet specific client requirements, implementing tailored solutions that enhanced user experience and functionality for 37 million clients. One of the key tasks was to load an embedded PDF file with all search-related terms highlighted. To achieve this, a FastAPI server was implemented, utilizing the Fitz library (React, Node.js, Python) Implemented solutions for behavior bugs in the mobile app Tendam, enhancing user experience for customers across more than 1,800 digital points of sale. Tasks included customizing code to fix frozen windows and load delays, as well as adding new components to enhance the UI on both platforms (Ionic, Objective-C, Java) - Contributed to the development of Classinthbox, an educational app with a Chrome Extension. Enhanced existing features and ensured the app's readiness for launch. The app now has a presence in over 36 countries, with more than 20 international nominations and awards. It is used in over 2,500 schools, serving over 1 million students (Angular, Node.js)

Openbravo Certified Developer and Consultant

Doceleguas•  December 2020 - October 2022•  Spain

- Updated and improved ERP business processes to align with new customer business rules, enhancing operational quality for Doceleguas customers. Worked extensively with ETP, AWO and logistics modules, implementing complex queries and optimizing business reports to reduce execution time and improve process performance, thereby enhancing the user experience. Developed and customized Jasper Reports to provide detailed and actionable insights. All tasks were planned in Jira and time-tracked using Clockify (Java, Javascript, React, JRXML, PostgreSQL)

Full Stack Software Engineer

KingdomProgrammers•  August 2018 - December 2020•  UK

- Lead the design and development of the mobile application Xares, a social media platform tailored for nurses, designed to facilitate professional networking and community building within the healthcare industry (Firebase, React-Native, Expo) - Lead the design and development of the mobile application CubaLista, a tool designed to provide access to job offers within the Cuban market and facilitate job matching for individuals and businesses (Firebase, Java, Android)