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        "rationale": "Structural patterns for organizing product code into maintainable modules, layers, and feature boundaries. Full stack engineers need this to keep cross-layer feature work understandable as the product grows.",
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        "rationale": "Server frameworks and runtimes used to build HTTP services, controllers, middleware, and request pipelines. These frameworks shape how backend endpoints are structured and delivered.",
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          "display_name": "Python Backend Developer",
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    },
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      "input_skill": "Spring MVC",
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      "roles_from_db": [
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        "rationale": "Designing request/response shapes and the rules that govern client-server interaction. This cluster is coherent because full stack engineers often own the contract between UI behavior and backend implementation.",
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    {
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        "rationale": "Designing backend service interfaces and contracts that other systems consume, including endpoint and operation shape, request/response payloads, schema and validation, pagination, filtering, idempotency, versioning, status codes, and backward compatibility across REST, GraphQL, gRPC, and OpenAPI-based APIs.",
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        "rationale": "Standards and protocols for integrating Pega applications.",
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      "input_skill": "REST",
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          "display_name": "Pega Developer",
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        {
          "display_name": "Sitecore Dev",
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      "input_skill": "Tomcat",
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        "slug": "d_init_01",
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      "roles_from_db": []
    },
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        "rationale": "Modeling and tuning relational persistence for backend features. PHP backend developers need this to shape schemas, indexes, transactions, and query-aware data structures that support application behavior.",
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