One of my main responsibilities was developing the back-end for a money transfer mobile app. Using ASP.NET Core, I built secure, RESTful APIs and integrated with third party services to integrate payments, KYC, fraud detection, banking, etc.

On the front-end side, I worked with React to build user interfaces and libraries like Redux and MobX for state management.

I was also involved with the initial setup of CI/CD pipelines on Azure DevOps. Automated building, testing, and deployment was critical for our workflow, helping us deliver new features and updates more efficiently.

During my time at Softtek I was lucky to work with two great clients in the wealth management and retail sectors, where I had the chance to learn about compliance, risk management, inventory management, among other business domains.

I was in charge of the design and implementation of backend systems, with business rules that were complex and consistently changing due to evolving regulations and requirements, yet with emphasis on performance.

Most of the development work was done in C# and I experienced the transitions of different .NET products, e.g. from WCF, to MVC, to Web API, to ASP.NET Core.

In the later years I was introduced to "modern" front-end frameworks, i.e. Angular, so I gained some experience with JavaScript and Typescript. At the time state management on the front-end was rapidly changing and very opinionated, for me this meant working with Redux to manage the state of UIs that required higher complexity.

This was a small consultancy company that I started with group of friends from college. We were able to sell and implement several development projects for local government agencies and businesses.

We mainly provided web presence and mobile applications for our customers, using different technologies like ASP.NET, React and Angular.

At Nasoft I implemented and maintained the web platform for our customers in the mortgage sector. Back then ASP.NET MVC was still a thing, and it was the main web application framework used for the platform, but we also integrated and exposed SOAP web services with WCF.

This was also during jQuery's heyday, which at the time didn't seem so bad, so we were using it in our front-end.

At Banamex I worked on an internal web application for our mortgage branch's analysts to manage risk and loan approvals. Here I had the opportunity to get up close to the database and is where I gained my initial experience with SQL Server.

The application was built with ASP.NET Web Forms and vanilla JS.

At ASCI I worked for a short time, but it was fun nevertheless. My first project involved writing firmware in C for wireless network access points.

Here is where I learned about version control, unit testing, code quality, and how it is like working in a real development team in general.

Later I moved on to a web development project, where I built a web application with ASP.NET Web Forms and JavaScript which integrated with Google Maps and GPS tracking devices, at the time this was pretty new stuff.

This was my first job as a software engineer and I was pretty much the entire IT department. This was a small insurance company that specialized in agribusiness.

I got to learn about networks, Linux, web servers, databases, basic web development concepts and a lot of other stuff in between. This is when I first started writing ASP.NET web apps in C#, this was when version 2.0 had just been released.

I even did some Flash based web UIs that displayed weather forecast maps.