diff --git a/test/Zeebe.Client.Accelerator.Unit.Tests/BootstrapJobHandlerTests.cs b/test/Zeebe.Client.Accelerator.Unit.Tests/BootstrapJobHandlerTests.cs
index ec59334..e1a873b 100644
--- a/test/Zeebe.Client.Accelerator.Unit.Tests/BootstrapJobHandlerTests.cs
+++ b/test/Zeebe.Client.Accelerator.Unit.Tests/BootstrapJobHandlerTests.cs
@@ -268,6 +268,41 @@ public async Task VariablesAreDeserializedWhenJobImplementGenericAbstractJob()
             Assert.Equal(expected, job.getVariables());
         }
 
+        [Fact]
+        public async Task ImplementationOfAbstractJobHandlerBaseIsCalledCorrectly()
+        {
+            var random = new Random();
+
+            var jobVariables = new ExtendedJobHState()
+            {
+                Guid = Guid.NewGuid(),
+                ExtraAttr = "Hello Impl"
+            };
+            var expectedSerializedVariables = new ZeebeVariablesSerializer().Serialize(jobVariables);
+            deserializerMock.Setup(m => m.Deserialize<ExtendedJobHState>(expectedSerializedVariables))
+                .Returns(jobVariables);
+
+            PrepareAsyncJobHandlersFor<JobHandlerI, ExtendedJobHState>();
+            var expectedHandler = jobHandlerInfoCollection.First();
+            var expectedKey = random.Next();
+
+            var jobMock = new Mock<IJob>();
+            jobMock.SetupGet(m => m.Type).Returns(expectedHandler.JobType);
+            jobMock.SetupGet(m => m.Key).Returns(expectedKey);
+            jobMock.SetupGet(m => m.Variables).Returns(expectedSerializedVariables);
+
+            JobHandlerI.guids.Clear();
+
+            var handler = Create();
+            await handler.HandleJob(jobClientMock.Object, jobMock.Object, cancellationToken);
+
+            this.jobClientMock.Verify(c => c.NewCompleteJobCommand(expectedKey), Times.Once);
+            this.jobClientMock.Verify(c => c.NewThrowErrorCommand(expectedKey), Times.Never);
+            this.jobClientMock.Verify(c => c.NewFailCommand(expectedKey), Times.Never);
+
+            Assert.Single(JobHandlerI.guids);
+            Assert.Equal(jobVariables.Guid, JobHandlerI.guids.First());
+        }
 
         [Fact]        
         public async Task RetryTimeOutIsUsedWhenJobIsCompleted() 
@@ -382,6 +417,7 @@ private static Mock<IServiceProvider> CreateIServiceProviderMock(Mock<HandleJobD
             mock.Setup(m => m.GetService(typeof(JobHandlerF))).Returns(new JobHandlerF(handleJobDelegateMock.Object));
             mock.Setup(m => m.GetService(typeof(JobHandlerG))).Returns(new JobHandlerG(handleJobDelegateMock.Object));
             mock.Setup(m => m.GetService(typeof(JobHandlerH))).Returns(new JobHandlerH(handleJobDelegateMock.Object));
+            mock.Setup(m => m.GetService(typeof(JobHandlerI))).Returns(new JobHandlerI());
 
             return mock;
         }
diff --git a/test/Zeebe.Client.Accelerator.Unit.Tests/JobHandlerInfoProviderTests.cs b/test/Zeebe.Client.Accelerator.Unit.Tests/JobHandlerInfoProviderTests.cs
index d53a5d9..d12f4b0 100644
--- a/test/Zeebe.Client.Accelerator.Unit.Tests/JobHandlerInfoProviderTests.cs
+++ b/test/Zeebe.Client.Accelerator.Unit.Tests/JobHandlerInfoProviderTests.cs
@@ -27,7 +27,7 @@ public void ThrowsArgumentNullExceptionWhenAssemblyProviderIsNull()
         [Fact]
         public void AllJobHandlersAreFoundWhenCreated() {
             var actual = Handlers();
-            var expected = 8;
+            var expected = 9;
 
             Assert.Equal(expected, actual.Count());
         }
diff --git a/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/JobHandlerI.cs b/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/JobHandlerI.cs
new file mode 100644
index 0000000..1b7ce98
--- /dev/null
+++ b/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/JobHandlerI.cs
@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Zeebe.Client.Accelerator.Unit.Tests.Stubs
+{
+    public class JobHandlerI : TypedInputHandlerBase<ExtendedJobHState>
+    {
+        public static IList<Guid> guids = new List<Guid>();
+
+        protected override Task HandleJob(ExtendedJobHState variables, CancellationToken cancellationToken)
+        {
+            guids.Add(variables.Guid);
+            return Task.CompletedTask;
+        }
+    }
+
+    public class ExtendedJobHState : JobHState
+    {
+        public string ExtraAttr {  get; set; }
+    }
+}
diff --git a/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/TypedInputHandlerBase.cs b/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/TypedInputHandlerBase.cs
new file mode 100644
index 0000000..424892c
--- /dev/null
+++ b/test/Zeebe.Client.Accelerator.Unit.Tests/Stubs/TypedInputHandlerBase.cs
@@ -0,0 +1,22 @@
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading;
+using System.Threading.Tasks;
+using Zeebe.Client.Accelerator.Abstractions;
+using Zeebe.Client.Accelerator.Attributes;
+
+namespace Zeebe.Client.Accelerator.Unit.Tests.Stubs
+{
+    public abstract class TypedInputHandlerBase<TInput> : IAsyncZeebeWorker<TInput> where TInput : JobHState, new ()
+    {
+        protected abstract Task HandleJob(TInput variables, CancellationToken cancellationToken);
+
+        public async Task HandleJob(ZeebeJob<TInput> job, CancellationToken cancellationToken)
+        {
+            await HandleJob(job.getVariables(), cancellationToken);
+        }
+    }
+}
diff --git a/test/Zeebe.Client.Accelerator.Unit.Tests/ZeebeHostedServiceTests.cs b/test/Zeebe.Client.Accelerator.Unit.Tests/ZeebeHostedServiceTests.cs
index 99d131a..d875d70 100644
--- a/test/Zeebe.Client.Accelerator.Unit.Tests/ZeebeHostedServiceTests.cs
+++ b/test/Zeebe.Client.Accelerator.Unit.Tests/ZeebeHostedServiceTests.cs
@@ -268,6 +268,12 @@ public ZeebeHostedServiceTests()
                         .Where(m => m.Name.Equals(nameof(JobHandlerH.HandleJob)))
                         .First()
                ),
+               CreateJobHandlerInfo(
+                    typeof(JobHandlerI)
+                        .GetMethods()
+                        .Where(m => m.Name.Equals(nameof(JobHandlerI.HandleJob)))
+                        .First()
+               ),
             };
 
             this.handleJobDelegateMock = new Mock<HandleJobDelegate>();