Enes Ljevakovic

Infosel terminal is a platform for monitoring real-time trading of stocks, forex, indices, and derivatives. Since data is updated in real time and there are a lot of statistics, numbers, and news, the highest challenge is data representation. Most information is presented using charts and real-time tables with colored updated fields. The terminal contains multiple workspaces, with each workspace containing cards or widgets, and it is customizable by users who can add, remove, resize, or drag them. Cards can include a table, a chart, or news. Tables have custom effects such as flashing cells for real-time updates, draggable and resizable columns, and ordering of rows and columns. Charts have both real-time updates and historical data. I used Jest, Testing Library, and Enzyme for code testing.

This custom content management system (CMS) application allows clients to manage their campaigns. It has different UI representations depending on the user's role. The app has many custom components, and its test coverage is above 80%.

TTS project is an enterprise solution that contains a web app, web APIs, a few mobile applications, and many background services.

The solution is designed for hospitals and a complex healthcare system in the Netherlands. The most complicated part is registering the care, declaring, and exchanging messages with national services, which communicate with hospitals and insurance companies.

I hosted the solution on AWS, and multiple AWS services are used, including EC2 instances, Redis, S3 bucket, Amazon SQS, and Amazon SES. It has numerous integrations with other software, including exporting, importing, and syncing data. The web application has a two-factor authentication, and mobile apps use JSON Web Token (JWT) to authenticate over web APIs.