diff --git a/google/cloud/bigquery/job/base.py b/google/cloud/bigquery/job/base.py
index a6267be41..78df9142f 100644
--- a/google/cloud/bigquery/job/base.py
+++ b/google/cloud/bigquery/job/base.py
@@ -26,6 +26,7 @@
 
 from google.cloud.bigquery import _helpers
 from google.cloud.bigquery.retry import DEFAULT_RETRY
+from google.cloud.bigquery._helpers import _int_or_none
 
 if typing.TYPE_CHECKING:  # pragma: NO COVER
     from google.api_core import retry as retries
@@ -171,6 +172,37 @@ def __setattr__(self, name, value):
             )
         super(_JobConfig, self).__setattr__(name, value)
 
+    @property
+    def job_timeout_ms(self):
+        """Optional parameter. Job timeout in milliseconds. If this time limit is exceeded, BigQuery might attempt to stop the job.
+        https://cloud.google.com/bigquery/docs/reference/rest/v2/Job#JobConfiguration.FIELDS.job_timeout_ms
+        e.g.
+
+            job_config = bigquery.QueryJobConfig( job_timeout_ms = 5000 )
+            or
+            job_config.job_timeout_ms = 5000
+
+        Raises:
+            ValueError: If ``value`` type is invalid.
+        """
+
+        # None as this is an optional parameter.
+        if self._properties.get("jobTimeoutMs"):
+            return self._properties["jobTimeoutMs"]
+        return None
+
+    @job_timeout_ms.setter
+    def job_timeout_ms(self, value):
+        try:
+            value = _int_or_none(value)
+        except ValueError as err:
+            raise ValueError("Pass an int for jobTimeoutMs, e.g. 5000").with_traceback(
+                err.__traceback__
+            )
+
+        """ Docs indicate a string is expected by the API """
+        self._properties["jobTimeoutMs"] = str(value)
+
     @property
     def labels(self):
         """Dict[str, str]: Labels for the job.
diff --git a/noxfile.py b/noxfile.py
index 703e36cbb..7cf5f6021 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -193,7 +193,12 @@ def system(session):
     session.install("-e", f".{extras}", "-c", constraints_path)
 
     # Run py.test against the system tests.
-    session.run("py.test", "--quiet", os.path.join("tests", "system"), *session.posargs)
+    session.run(
+        "py.test",
+        "--quiet",
+        os.path.join("tests", "system"),
+        *session.posargs,
+    )
 
 
 @nox.session(python=DEFAULT_PYTHON_VERSION)
diff --git a/tests/unit/job/test_base.py b/tests/unit/job/test_base.py
index a662e92d4..5635d0e32 100644
--- a/tests/unit/job/test_base.py
+++ b/tests/unit/job/test_base.py
@@ -1228,3 +1228,18 @@ def test_labels_setter(self):
         job_config = self._make_one()
         job_config.labels = labels
         self.assertEqual(job_config._properties["labels"], labels)
+
+    def test_job_timeout_ms_raises_valueerror(self):
+        # Confirm that attempting to set a non-integer values will raise an Error.
+        with pytest.raises(ValueError):
+            job_config = self._make_one()
+            job_config.job_timeout_ms = "WillRaiseError"
+
+    def test_job_timeout_ms(self):
+        # Confirm that default status is None.
+        job_config = self._make_one()
+        assert job_config.job_timeout_ms is None
+
+        # Confirm that integers get converted to strings.
+        job_config.job_timeout_ms = 5000
+        assert job_config.job_timeout_ms == "5000"  # int is converted to string