diff --git a/servo/configuration.py b/servo/configuration.py
index 3db2992a8..9fbf05e8f 100644
--- a/servo/configuration.py
+++ b/servo/configuration.py
@@ -23,6 +23,7 @@
 import pathlib
 import re
 from typing import Any, Callable, Dict, List, Optional, Type, Union
+from typing_extensions import TypeAlias
 
 import pydantic
 import yaml
@@ -37,6 +38,7 @@
     "BaseConfiguration",
     "BaseServoConfiguration",
     "OpsaniOptimizer",
+    "OptimizerTypes",
     "CommonConfiguration",
 ]
 
@@ -178,6 +180,9 @@ class Config:
         }
 
 
+OptimizerTypes: TypeAlias = Union[OpsaniOptimizer, AppdynamicsOptimizer]
+
+
 DEFAULT_TITLE = "Base Connector Configuration Schema"
 
 
@@ -564,7 +569,7 @@ class BaseServoConfiguration(AbstractBaseConfiguration, abc.ABC):
 
     name: Optional[str] = None
     description: Optional[str] = None
-    optimizer: Union[OpsaniOptimizer, AppdynamicsOptimizer] = {}
+    optimizer: OptimizerTypes = {}
     connectors: Optional[Union[List[str], Dict[str, str]]] = pydantic.Field(
         None,
         description=(
@@ -604,7 +609,7 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
         # If optimizer hasn't failed validation then it was set by environment variables.
-        # Explicityly assign it so that its included in pydantic's __fields_set__
+        # Explicitly assign it so that its included in pydantic's __fields_set__
         # Ideally we could just set include=True on the Field but that doesn't seem to override exclude_unset
         self.optimizer = self.optimizer
 
diff --git a/servo/connector.py b/servo/connector.py
index d104def85..7bee3a5c1 100644
--- a/servo/connector.py
+++ b/servo/connector.py
@@ -135,23 +135,15 @@ class BaseConnector(
     )
     """Shared configuration from our parent Servo instance."""
 
-    _optimizer: Optional[
-        Union[
-            servo.configuration.OpsaniOptimizer,
-            servo.configuration.AppdynamicsOptimizer,
-        ]
-    ] = pydantic.PrivateAttr(default=None)
+    _optimizer: Optional[servo.configuration.OptimizerTypes] = pydantic.PrivateAttr(
+        default=None
+    )
     """Shared optimizer from our parent Servo instance."""
 
     @property
     def optimizer(
         self,
-    ) -> Optional[
-        Union[
-            servo.configuration.OpsaniOptimizer,
-            servo.configuration.AppdynamicsOptimizer,
-        ]
-    ]:
+    ) -> Optional[servo.configuration.OptimizerTypes]:
         """The optimizer for the connector."""
         return self._optimizer
 
diff --git a/servo/runner.py b/servo/runner.py
index bfc87af88..99055a419 100644
--- a/servo/runner.py
+++ b/servo/runner.py
@@ -74,10 +74,7 @@ def connected(self) -> bool:
     @property
     def optimizer(
         self,
-    ) -> Union[
-        servo.configuration.OpsaniOptimizer,
-        servo.configuration.AppdynamicsOptimizer,
-    ]:
+    ) -> servo.configuration.OptimizerTypes:
         return self.servo.optimizer
 
     @property