There are two main types of software engineers: systems developers and application developers. Systems developers create things like computer systems and networks that applications will need. Application developers work on either the front or back end of the system, designing software that users will interact with.
Software engineers also test, improve, and maintain software built by others. Their daily tasks might include designing and maintaining software systems, evaluating and testing new software programs, optimizing software for speed and scalability, writing and testing code, and consulting with clients, engineers, security specialists, and other stakeholders.
Software engineering is crucial for creating large software, ensuring scalability, adaptability, cost-effectiveness, and catering to the dynamic nature of user requirements.