diff --git a/Contracts/Proto/user.proto b/Contracts/Proto/user.proto
new file mode 100644
index 0000000..ee50850
--- /dev/null
+++ b/Contracts/Proto/user.proto
@@ -0,0 +1,15 @@
+syntax = "proto3";
+option csharp_namespace = "JOBot.Proto";
+
+service User {
+	rpc Register (RegisterRequest) returns (RegisterResponse);
+}
+
+message RegisterRequest{
+	int64 user_id = 1;
+	string username = 2;
+}
+
+message RegisterResponse{
+	int64 user_id = 1;
+}
\ No newline at end of file
diff --git a/JOBot.Backend/JOBot.Backend.csproj b/JOBot.Backend/JOBot.Backend.csproj
index beb6689..64f0dd0 100644
--- a/JOBot.Backend/JOBot.Backend.csproj
+++ b/JOBot.Backend/JOBot.Backend.csproj
@@ -1,18 +1,22 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
-  <PropertyGroup>
-    <TargetFramework>net9.0</TargetFramework>
-    <Nullable>enable</Nullable>
-    <ImplicitUsings>enable</ImplicitUsings>
-  </PropertyGroup>
+	<PropertyGroup>
+		<TargetFramework>net9.0</TargetFramework>
+		<Nullable>enable</Nullable>
+		<ImplicitUsings>enable</ImplicitUsings>
+	</PropertyGroup>
 
-  <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.30.2" />
-    <PackageReference Include="Grpc.AspNetCore" Version="2.71.0" />
-    <PackageReference Include="Grpc.Tools" Version="2.71.0">
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-      <PrivateAssets>all</PrivateAssets>
-    </PackageReference>
-  </ItemGroup>
+	<ItemGroup>
+		<PackageReference Include="Google.Protobuf" Version="3.30.2" />
+		<PackageReference Include="Grpc.AspNetCore" Version="2.71.0" />
+		<PackageReference Include="Grpc.Tools" Version="2.71.0">
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+			<PrivateAssets>all</PrivateAssets>
+		</PackageReference>
+	</ItemGroup>
+
+	<ItemGroup>
+		<Protobuf Include="..\Contracts\Proto\*" GrpcServices="Server"></Protobuf>
+	</ItemGroup>
 
 </Project>
diff --git a/JOBot.Backend/Program.cs b/JOBot.Backend/Program.cs
index 1760df1..b50f840 100644
--- a/JOBot.Backend/Program.cs
+++ b/JOBot.Backend/Program.cs
@@ -1,6 +1,9 @@
 var builder = WebApplication.CreateBuilder(args);
+
+builder.Services.AddGrpc();
+
 var app = builder.Build();
 
-app.MapGet("/", () => "Hello World!");
+app.MapGrpcService<UserService>();
 
-app.Run();
+app.Run();
\ No newline at end of file
diff --git a/JOBot.Backend/Services/gRPC/UserService.cs b/JOBot.Backend/Services/gRPC/UserService.cs
new file mode 100644
index 0000000..719d3be
--- /dev/null
+++ b/JOBot.Backend/Services/gRPC/UserService.cs
@@ -0,0 +1,16 @@
+using Grpc.Core;
+using JOBot.Proto;
+
+class UserService : User.UserBase
+{
+    public override Task<RegisterResponse> Register(
+        RegisterRequest request,
+        ServerCallContext context)
+
+    {
+        return Task.FromResult(new RegisterResponse
+        {
+            UserId = request.UserId
+        });
+    }
+}
\ No newline at end of file