Diego Vargas

A React-based desktop application that helps doctors and technicians add, organize, and evaluate miners' health reports in remote places of Perú. I participated in the project's whole life-cycle, from analyzing the clinic's needs to deploying and user testing the application. In the development phase, I worked in the front end and in the back end. The former using React with TypeScript and the latter using Node.js. AWS was used to maintain the data and core-logic in the cloud.

Their early process was very slow and involved tedious paperwork. The biggest pain-points were organizing and uploading the images to their system at prolonged internet speeds. The application worked offline and allowed users to upload images at slow speeds and also detect duplicates of images that other technicians uploaded.

The desktop allowed the doctors to stay in the city, where they were most needed, and reply as quickly as the images were added to the platform.

A React-based web application to track student progress during the semester using a novel way to grade them. I was involved in all phases of project development, from the analysis of requirements to deploying the application. The application enabled administrators and professors to calculate the grades of students easily and more quickly than calculating it themselves manually. The front end was intuitive to older professors and usable on all types of screens (for students on mobile phones, for instance). Finally, the grades needed to be calculated based on a custom and novel formula created by the faculty.

I was involved in the creation of both the front and back end for the project, using Firebase in the back end for authentication (which also needed to have interoperability with the university systems), data storage and functions to have a serverless architecture.

A web application that provides system administration support from the contract to escalating customer needs based on SLAs. I worked as a team lead and as a full-stack developer, providing the directions and next steps to the team and developing both in the front end and back end of the project.

The application needed to provide simple eCommerce to showcase the company's services, and from there, walk the customer through registering their servers and creating support tickets. These tickets would later escalate based on SLAs to specific users with specific roles, depending on the support area from simply notifying through Slack to normal tech support up to the SMS leader support area.

I resolved complications with the server load by separating the core processes in different instances and implementing a simple CI process to build and restart the instances after any update.

A React-based application to organize pictures by tags, people in the pictures, and places. Photographers can modify the contrast, temperature, and brightness, and save each modification in the snapshots. Photos are processed in the back end, based on Node.js, after which the result is sent to the front end.

I was the team lead of the development group and coded in both the project's front and back end.