Google Cloud Platform, often referred to as GCP, is a suite of public cloud computing services offered by Google. It is a comprehensive solution that combines a spectrum of services like data storage, machine learning, computing, data analytics, artificial intelligence, and networking. It is highly sought after by organizations keen on implementing scalable and flexible systems. As a skill, Google Cloud Platform often falls under the remit of cloud architects, data engineers, system administrators, developers, IT professionals, and data analysts.

Candidates who want to excel in Google Cloud Platform should have a robust understanding of cloud concepts and the basic principles of Google Cloud. They should be proficient in setting up, configuring, deploying, and managing applications and services on the Google Cloud environment. This includes core services such as Compute Engine, BigQuery, Cloud Storage, Kubernetes Engine, Cloud Functions, and more. An advanced understanding of APIs, Google Cloud's networking model, and security controls is also beneficial.

It's also crucial to have familiarity with automating deployment and implementing robust continuous integration/continuous deployment (CI/CD) pipelines within a cloud-based environment. This often requires a good understanding of coding languages such as Python or Java and tools like Jenkins, Spinnaker, or Terraform.

For related foundational skills, one must have a basic understanding of IT infrastructure, networking, databases, and software development. Knowledge of virtualization, an understanding of web services and API applications, is crucial. Familiarity with operating systems, especially Linux, can also be beneficial.

Interestingly, individuals with knowledge of other cloud platforms, such as AWS or Azure, may find it easier to grasp the Google Cloud Platform since many principles apply across platforms. In addition to technical proficiency, companies are looking for individuals who are collaborative, persistent, analytical, and exhibit strong problem-solving capabilities to effectively use Google Cloud Platform.

In the rapidly changing tech landscape, mastering the Google Cloud Platform can provide a competitive edge and open up a wealth of opportunities in several industries. Various professional certifications like Google Cloud Certified - Professional Cloud Architect, Google Cloud Certified - Professional Data Engineer, etc., help validate and enhance your cloud skills, and are highly valued by employers.