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KC Star V5 pretends one PostgreSQL instance is two databases, joined by a single un-enforced integer. CrossDatabaseFact carries two reference keys at once, and eight windowed measures value a single sale at every altitude of the org chart.
Pick the one closest to the role. Each is two pages and carries the same facts.
Applied AI
Agentic AI & Cloud Engineer · multi-agent systems, RAG and MCP on AWS
Cloud & .NET
C#, .NET 10 and ASP.NET Core microservices on AWS and Azure · Terraform & AWS CDK
Data Engineering
AWS lakehouse · Kinesis, Glue (PySpark), Apache Iceberg, Lake Formation
Everything
All three domains, with the standout project from each