Edgar – JavaScript, Node.js, React

A national school network that serves about 1000 students across their different campuses, they needed a new tech stack to handle their student's needs.

• Implemented google classroom for the entire organization (server configuration)
• Renewed their websites
• Created a custom CRM
• Created a custom LMS
• Implemented a fully managed network system

An app designed to track fitness progress. Since its launch, it has been a great success, with all 12 participants regularly using the app to track their fitness progress.

• Created the entire app in less than a week;
• Designed a user-friendly interface that made it easy for participants to track their progress and compete with their friends;
• Developed a robust backend system that ensured accurate fitness data tracking and maintained data privacy and security;
• Integrated various third-party APIs to provide additional features, such as data storage, GPS tracking in v2, workout logging, and sharing to Telegram;
• Continuously improved the app based on friends' feedback, adding new features and fixing bugs.

A company replaces traditional washing and drying machines in buildings with smart ones. The smart machines had an Arduino brain connected via MQTT to a central broker on a Raspberry Pi, which then connected to AWS.

• Created multiple apps that ran simultaneously on the Raspberry Pi, which enabled to control and monitor several smart machines at once;
• Optimized the code to reduce bandwidth consumption, allowing for smoother and more efficient communication between the machines, the Raspberry Pi, and AWS (modem ran on a 3g connection);
• Developed a remote updater that replaced a paid solution, allowing tumble to save costs while making sure that all machines were running on the latest software versions;
• Created an onboarding tool to deploy new devices on new premises easily;
• Developed software for the Raspberry Pi and made modifications to the Arduino;
• Implemented software for the Internet of Things (IoT);
• Improved the efficiency and functionality of hardware systems.

The goal was to reduce friction in loyalty and cashback programs between businesses, clients, and banks.

• Created a solid API for third-party services that allowed for smooth integration and communication between the platform and external services;
• Implemented a financial solution for the company by integrating Stripe, PayPal, and SPEI (Mexico's banking system);
• Developed a real-time data dashboard (React.js) that provided valuable insights into user behavior, transaction patterns, and overall platform performance;
• Created data transforming scripts in Python to handle large ingest of CSV files provided by the banks;
• Worked closely with this 3rd party team to improve the overall security of the project.

An initiative to provide relief areas for first responders and health workers working in COVID hospitals and staying for long shifts without going home.

• Set up the server on Digital Ocean Software development
• Connected 3rd party APIs (Google maps, Firebase)
• Acted as support for all the team and people involved with pickup/delivery

The company specializes in agile methodology in-person courses and seminars. The app required that the notifications and grading system be real-time, so a separate Node.js-Soketi server was implemented to use Websockets and achieve real-time communication between server and client.

• Created a fully-fledged solution, enabling the company to transition from in-person courses and seminars to a fully remote solution;
• Developed a web platform and mobile apps for iOS and Android using a single codebase in Flutter, resulting in an easier development process;
• Integrated 3rd party APIs and AWS services into the platform to provide a seamless user experience and high-quality content streaming (MUX, AWS wrapper);
• Led a team of one developer and one designer to deploy the platform and apps.