Start here in GCP
The most useful guides in this topic, not just the most recent.
GCP Guides & Tutorials
Google Cloud for data — BigQuery, Dataflow, Pub/Sub, Vertex AI, Cloud Storage and the Professional Data Engineer path.
GCP articles
GCP Certification Path: Which One to Pick First
Google Cloud has foundational, associate and professional certifications, and none requires another. This guide compares the eight exams that data people usually consider, with fees and formats from Google's pages, and suggests a first exam for five different starting points.
GCP Interview Questions for Data Engineers, Part 2: The Apache Beam Coding Round
Dataflow roles often include a short Apache Beam coding exercise. The tasks are small, but they show whether you think in PCollections and combiners or in loops. Here are five typical tasks, solved and run locally on real data, with what each one tests and the follow-up questions interviewers ask.