diff --git a/connector_extension/models/backend/backend.py b/connector_extension/models/backend/backend.py
index 03b25354a..d5ff6f3a9 100644
--- a/connector_extension/models/backend/backend.py
+++ b/connector_extension/models/backend/backend.py
@@ -3,6 +3,7 @@
 # Copyright 2025 NuoBiT Solutions SL - Deniz Gallo <dgallo@nuobit.com>
 # License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html)
 import logging
+from contextlib import contextmanager
 
 import pytz
 
@@ -45,6 +46,13 @@ def _select_state(self):
         default=lambda self: self.env.company,
         string="Company",
     )
+    user_id = fields.Many2one(
+        comodel_name="res.users",
+        string="User",
+        help="User used as the default responsible for records created by "
+        "this backend. If set, all operations (imports, exports, jobs) "
+        "will run under this user context.",
+    )
 
     lang_ids = fields.Many2many(
         comodel_name="res.lang",
@@ -70,7 +78,21 @@ def _select_state(self):
         string="Timezone",
         required=True,
         default=lambda self: self._context.get("tz") or self.env.user.tz or "UTC",
-        help="This field is used to define in which timezone the backend will work.",
+        help="The timezone of the business data in the external system. "
+        "All imported datetime values are assumed to be in this timezone "
+        "and will be converted to UTC for storage in Odoo. "
+        "On export, Odoo UTC values are converted back to this timezone.",
+    )
+    server_tz = fields.Selection(
+        _tz_get,
+        string="Server Timezone",
+        required=True,
+        default=lambda self: self._context.get("tz") or self.env.user.tz or "UTC",
+        help="The timezone of the external system's server. "
+        "Used for technical timestamps managed by the server itself "
+        "(e.g. modification dates, audit trails) which may differ from "
+        "the business data timezone when the server is hosted in a "
+        "different region.",
     )
 
     chunk_size = fields.Integer(
@@ -113,18 +135,35 @@ def button_reset_to_draft(self):
         self.ensure_one()
         self.write({"state": "draft", "version": False})
 
+    @staticmethod
+    def _convert_tz(dt_naive, from_tz, to_tz):
+        dt = pytz.timezone(from_tz).localize(dt_naive)
+        dt = dt.astimezone(pytz.timezone(to_tz))
+        return dt.replace(tzinfo=None)
+
     def tz_to_utc(self, datetime_local_naive):
-        datetime_local = pytz.timezone(self.tz).localize(datetime_local_naive)
-        datetime_utc = datetime_local.astimezone(pytz.utc)
-        datetime_utc_naive = datetime_utc.replace(tzinfo=None)
-        return datetime_utc_naive
+        return self._convert_tz(datetime_local_naive, self.tz, "UTC")
+
+    def utc_to_local(self, datetime_utc_naive):
+        return self._convert_tz(datetime_utc_naive, "UTC", self.tz)
 
+    # Deprecated: use utc_to_local instead
     def tz_to_local(self, datetime_utc_naive):
-        local_tz = pytz.timezone(self.tz)
-        datetime_utc = pytz.utc.localize(datetime_utc_naive)
-        datetime_local = datetime_utc.astimezone(local_tz)
-        datetime_local_naive = datetime_local.replace(tzinfo=None)
-        return datetime_local_naive
+        return self.utc_to_local(datetime_utc_naive)
+
+    def server_tz_to_utc(self, datetime_server_naive):
+        return self._convert_tz(datetime_server_naive, self.server_tz, "UTC")
+
+    def utc_to_server_tz(self, datetime_utc_naive):
+        return self._convert_tz(datetime_utc_naive, "UTC", self.server_tz)
+
+    @contextmanager
+    def work_on(self, model_name, **kwargs):
+        backend = self
+        if self.user_id:
+            backend = self.with_user(self.user_id)
+        with super(ConnectorBackend, backend).work_on(model_name, **kwargs) as work:
+            yield work
 
     # Scheduler methods
     @api.model