diff --git a/quri_parts/riqu/backend/sampling.py b/quri_parts/riqu/backend/sampling.py
index b6d6079..64027b7 100644
--- a/quri_parts/riqu/backend/sampling.py
+++ b/quri_parts/riqu/backend/sampling.py
@@ -364,7 +364,7 @@ class RiquConfig:
         ValueError: If ``url`` or ``api_token`` is None.
     """
 
-    def __init__(self, url: str, api_token: str) -> None:
+    def __init__(self, url: str, api_token: str, proxy: Optional[str] = None) -> None:
         super().__init__()
 
         if url is None:
@@ -375,6 +375,8 @@ def __init__(self, url: str, api_token: str) -> None:
             raise ValueError("api_token should not be None.")
         self._api_token: str = api_token
 
+        self._proxy: str = proxy
+
     @property
     def url(self) -> str:
         return self._url
@@ -383,6 +385,10 @@ def url(self) -> str:
     def api_token(self) -> str:
         return self._api_token
 
+    @property
+    def proxy(self) -> Optional[str]:
+        return self._proxy
+
     @staticmethod
     def from_file(section: str = "default", path: str = "~/.riqu") -> "RiquConfig":
         """Reads configuration information from a file.
@@ -414,6 +420,7 @@ def from_file(section: str = "default", path: str = "~/.riqu") -> "RiquConfig":
                 [sectioB]
                 url=<base URL>
                 api_token=<API token>
+                proxy=http://<proxy>:<port>
 
             If ``sectionA`` settings are to be used, initialize ``RiquSamplingBackend`` as follows
 
@@ -429,6 +436,7 @@ def from_file(section: str = "default", path: str = "~/.riqu") -> "RiquConfig":
         config = RiquConfig(
             url=parser[section]["url"],
             api_token=parser[section]["api_token"],
+            proxy=parser[section].get("proxy", None)
         )
         return config
 
@@ -454,6 +462,8 @@ def __init__(
         # construct JobApi
         rest_config = Configuration()
         rest_config.host = config.url
+        if config.proxy:
+            rest_config.proxy = config.proxy
         api_client = ApiClient(
             configuration=rest_config,
             header_name="q-api-token",
diff --git a/tests/riqu/backend/test_sampling.py b/tests/riqu/backend/test_sampling.py
index af5d0b9..ae57155 100644
--- a/tests/riqu/backend/test_sampling.py
+++ b/tests/riqu/backend/test_sampling.py
@@ -34,6 +34,11 @@
 url=test_url
 api_token=test_api_token
 
+[option]
+url=test_url
+api_token=test_api_token
+proxy=http://testproxy:port
+
 [wrong]
 url=test_url
 """
@@ -450,6 +455,7 @@ def test_from_file(self, mocker):
         # Assert
         assert actual.url == "default_url"
         assert actual.api_token == "default_api_token"
+        assert actual.proxy is None
 
     def test_from_file__section(self, mocker):
         # Arrange
@@ -461,6 +467,19 @@ def test_from_file__section(self, mocker):
         # Assert
         assert actual.url == "test_url"
         assert actual.api_token == "test_api_token"
+        assert actual.proxy is None
+
+    def test_from_file__optional(self, mocker):
+        # Arrange
+        mocker.patch("builtins.open", mock_open(read_data=config_file_data))
+
+        # Act
+        actual = RiquConfig.from_file(section="option")
+
+        # Assert
+        assert actual.url == "test_url"
+        assert actual.api_token == "test_api_token"
+        assert actual.proxy == "http://testproxy:port"
 
     def test_from_file__wrong(self, mocker):
         # Arrange
@@ -478,11 +497,12 @@ def test_from_file__wrong(self, mocker):
 
     def test_properties(self):
         # Act
-        actual = RiquConfig("dummpy_url", "dummy_api_token")
+        actual = RiquConfig("dummpy_url", "dummy_api_token", "http://dummy:1234")
 
         # Assert
         assert actual.url == "dummpy_url"
         assert actual.api_token == "dummy_api_token"
+        assert actual.proxy == "http://dummy:1234"
 
 
 class TestRiquSamplingBackend: