What are the main advantages of using microservices architecture over a monolithic architecture?

During my final year at college, I worked on a group project to develop a web application for managing student courses. We initially designed it as a monolithic application, which made it challenging to update individual features without affecting the entire system. After realizing this limitation, we decided to refactor it into a microservices architecture. Each team member was responsible for a specific service, such as user authentication or course management. This division allowed us to work independently and deploy updates faster. As a result, our project not only met deadlines but also received positive feedback for its modularity and responsiveness.

While volunteering for a local nonprofit, I helped develop an event management system. Initially, we created it as a single, large application. However, as we added more features like ticketing and user registration, we faced difficulties in managing the code. To address this, we transitioned to a microservices approach. This allowed different volunteers to focus on specific functionalities, such as payment processing and event scheduling, without stepping on each other's toes. The outcome was a more efficient development process, enabling us to launch the system in time for the upcoming event and making future updates easier to implement.

In my first job at a startup, I was part of a team that worked on an e-commerce platform. The architecture was initially monolithic, which made scaling during peak shopping seasons quite challenging. After some months, we transitioned to a microservices architecture, which allowed us to scale individual components like the inventory service and payment processing independently. This shift resulted in improved performance during high traffic and reduced downtime. The experience taught me the importance of choosing the right architecture based on the application’s requirements and growth expectations.