.NET DEVELOPER (Remote) Core skill - Expertise in System.Linq.Expressions
Key Requirements
.NET App development with Entity Framework and LINQ skills
Expertise in System.Linq.Expressions: They must move beyond "using" LINQ to "building" it. They need deep experience manually constructing and modifying Expression Trees (using ExpressionVisitor) to rewrite queries at runtime.
EF Core Internals & SQL Translation: Deep understanding of the Entity Framework Core translation pipeline. They should know how to troubleshoot "could not be translated" errors by restructuring C# logic into SQL-compatible structures (like Joins and Projections).
Advanced Metaprogramming: Proficiency in Runtime Type Generation. They should be comfortable creating dynamic types at execution time to handle varying data shapes without causing memory leaks.
Architectural Pattern Mastery: Advanced experience with the Builder Pattern and Fluent API Design (similar to how the EF Core "Fluent API" itself is built).
Functional Programming in C#: High comfort level with generics, delegates, and higher-order functions (passing logic as data).
