At the end of 2023, my squad started its most important project. I assumed the project leadership role, organizing the project, coordinating the meetings, the release process, etc. At the first months, the project went well, as we took some hard decisions, proved a couple of concepts, and started the rollout for the first phase.

However, I always felt that I was holding the team back and being a bottleneck in the whole team. At a 1x1 with the head of the area, I told him about my frustration and got this answer back:

The first time I heard about RPC, I was in a distributed systems class while completing my bachelor’s in computer science. I like it but didn’t fully understand why I should use it instead of REST. Time passed, and I started working at a company where the legacy services use SOAP. I remember thinking: “hm, that’s cool! It is like RPC but using XML instead! Years later, I heard for the first time about gRPC, but I’ve never fully understood it until now!

When I chose to pursue a career in computer science when I was 15 years old, it was basically on liking math and physics. I want to distance myself from writing posts, essays, etc. Time goes by, and now, one of the things that I value at a mature company or team is the existence of technical documentation.

Docs help us to gain historical knowledge of our company, reevaluate decisions, and comprehend the trade-offs between all the decisions. It is also beneficial for the newcomers because it tells them a story. The richer in detail it is, the better it is.

Today it is common for our applications to have a couple of dependencies, especially when working in a microservice environment. It isn’t rare when our app reports errors, we find out that one dependency is down.

One good practice for improving our resilience is to shut down the communication with those apps that are not behaving well. Looking into other fields, we learned the concept of circuit breakers from electrical engineering, where a switch turns off when a failure happens. In Brazil, all houses have these switches that automatically shut down if our electric network becomes unstable.

Building a game is an excellent way of starting programming. Tons of people have started programming because they wanted to create computer games. Even me, back in 2010, had one of my first projects to write a small game when I was still in my Technician course.

In this course, we used Python to develop a slide puzzle. It was very challenging because I had to learn about the game mechanics and GUI, but I could handle the project. When I started to work with Ruby, I also built one to compare with what I did with Python.