Cloud computing encompasses a variety of internet-delivered services, with a projected market growth from $175.8 billion in 2018 to $206 billion in 2019. Careers in this field include roles such as cloud engineer, solutions architect, and sysops administrator, requiring proficiency in cloud platforms and programming languages. Educational resources and certifications from AWS, Microsoft Azure, and Google Cloud are vital for aspiring cloud engineers, with salary ranges differing by geography.