diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0bf5a8b..f6d1a88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,12 @@
 - `docker/build-push-action@v5` → чистые `docker build/push` команды
 - Тесты используют `config.settings.test` (SQLite in-memory) вместо PostgreSQL service
 
+#### Code Quality
+- Исправлены ошибки ruff lint:
+  - Сортировка импортов (I001)
+  - Удалены неиспользуемые импорты и переменные (F401, F841)
+  - Добавлены noqa для тестового кода (S106, S314)
+
 ---
 
 ## [0.4.0] - 2026-01-28
diff --git a/run_tests.py b/run_tests.py
index db61014..16d18ad 100644
--- a/run_tests.py
+++ b/run_tests.py
@@ -5,10 +5,9 @@
 Поддерживает coverage и дополнительные опции
 """
 
+import argparse
 import os
 import sys
-from io import StringIO
-import argparse
 
 import django
 
@@ -59,51 +58,47 @@ def run_tests_with_args(test_args, options):
 
 def parse_arguments():
     """Парсинг аргументов командной строки"""
-    parser = argparse.ArgumentParser(description="Запуск Django тестов с дополнительными возможностями")
+    parser = argparse.ArgumentParser(
+        description="Запуск Django тестов с дополнительными возможностями"
+    )
 
     parser.add_argument(
         "targets",
         nargs="*",
         help="Цели тестирования (по умолчанию: все тесты)",
-        default=["tests"]
+        default=["tests"],
     )
 
     parser.add_argument(
-        "--coverage", "--cov",
+        "--coverage",
+        "--cov",
         action="store_true",
-        help="Запуск тестов с измерением покрытия кода"
+        help="Запуск тестов с измерением покрытия кода",
     )
 
     parser.add_argument(
         "--fast",
         action="store_true",
-        help="Запуск только быстрых тестов (исключает медленные)"
+        help="Запуск только быстрых тестов (исключает медленные)",
     )
 
     parser.add_argument(
-        "--failfast",
-        action="store_true",
-        help="Остановка при первой ошибке"
+        "--failfast", action="store_true", help="Остановка при первой ошибке"
     )
 
     parser.add_argument(
-        "--verbose", "-v",
-        action="count",
-        default=2,
-        help="Уровень детализации вывода"
+        "--verbose", "-v", action="count", default=2, help="Уровень детализации вывода"
     )
 
     parser.add_argument(
-        "--keepdb",
-        action="store_true",
-        help="Сохранить тестовую базу данных"
+        "--keepdb", action="store_true", help="Сохранить тестовую базу данных"
     )
 
     parser.add_argument(
         "--parallel",
         type=int,
         metavar="N",
-        help="Запуск тестов в N параллельных процессах"
+        help="Запуск тестов в N параллельных процессах",
     )
 
     args = parser.parse_args()
@@ -186,6 +181,7 @@ def setup_coverage():
     """Настройка coverage"""
     try:
         import coverage
+
         cov = coverage.Coverage(config_file="pyproject.toml")
         cov.start()
         return cov
@@ -245,7 +241,7 @@ def main():
             print(f"\n❌ Тесты завершились с ошибками: {failures} неудачных тестов")
             sys.exit(1)
         else:
-            print(f"\n✅ Все тесты прошли успешно!")
+            print("\n✅ Все тесты прошли успешно!")
             if cov:
                 print("📊 Отчет о покрытии сохранен")
             sys.exit(0)
@@ -260,6 +256,7 @@ def main():
         if cov:
             cov.stop()
         import traceback
+
         traceback.print_exc()
         sys.exit(1)
 
diff --git a/tests/apps/core/test_background_jobs.py b/tests/apps/core/test_background_jobs.py
index b226195..756c4d9 100644
--- a/tests/apps/core/test_background_jobs.py
+++ b/tests/apps/core/test_background_jobs.py
@@ -187,7 +187,7 @@ class BackgroundJobServiceTest(TestCase):
     def test_get_user_jobs_with_status_filter(self):
         """Тест фильтрации по статусу."""
         user_id = 456
-        job1 = BackgroundJobService.create_job(
+        BackgroundJobService.create_job(
             task_id="task-pending",
             task_name="test.task",
             user_id=user_id,
@@ -212,7 +212,7 @@ class BackgroundJobServiceTest(TestCase):
     def test_get_active_jobs(self):
         """Тест получения активных задач."""
         # Создаём задачи с разными статусами
-        job_pending = BackgroundJobService.create_job(
+        BackgroundJobService.create_job(
             task_id="job-active-pending",
             task_name="test.task",
         )
diff --git a/tests/apps/core/test_bulk_operations.py b/tests/apps/core/test_bulk_operations.py
index 5656d0e..5227ed4 100644
--- a/tests/apps/core/test_bulk_operations.py
+++ b/tests/apps/core/test_bulk_operations.py
@@ -71,6 +71,7 @@ class BulkOperationsIntegrationTest(TestCase):
 
     def test_bulk_create_chunked(self):
         """Тест массового создания чанками."""
+
         # Создаём тестовый сервис с BulkOperationsMixin
         class TestService(BulkOperationsMixin):
             model = BackgroundJob
@@ -88,10 +89,13 @@ class BulkOperationsIntegrationTest(TestCase):
         self.assertEqual(count, 10)
 
         # Проверяем что все созданы
-        self.assertEqual(BackgroundJob.objects.filter(task_name="test.bulk.task").count(), 10)
+        self.assertEqual(
+            BackgroundJob.objects.filter(task_name="test.bulk.task").count(), 10
+        )
 
     def test_bulk_delete(self):
         """Тест массового удаления."""
+
         class TestService(BulkOperationsMixin):
             model = BackgroundJob
 
@@ -109,10 +113,13 @@ class BulkOperationsIntegrationTest(TestCase):
         deleted = TestService.bulk_delete(ids_to_delete)
 
         self.assertEqual(deleted, 3)
-        self.assertEqual(BackgroundJob.objects.filter(task_name="test.delete.task").count(), 2)
+        self.assertEqual(
+            BackgroundJob.objects.filter(task_name="test.delete.task").count(), 2
+        )
 
     def test_bulk_update_fields(self):
         """Тест массового обновления полей."""
+
         class TestService(BulkOperationsMixin):
             model = BackgroundJob
 
@@ -138,6 +145,7 @@ class BulkOperationsIntegrationTest(TestCase):
 
     def test_bulk_update_or_create_creates(self):
         """Тест upsert - создание новых."""
+
         class TestService(BulkOperationsMixin):
             model = BackgroundJob
 
@@ -157,6 +165,7 @@ class BulkOperationsIntegrationTest(TestCase):
 
     def test_bulk_update_or_create_updates(self):
         """Тест upsert - обновление существующих."""
+
         class TestService(BulkOperationsMixin):
             model = BackgroundJob
 
diff --git a/tests/apps/core/test_response.py b/tests/apps/core/test_response.py
index 485d4f3..4368625 100644
--- a/tests/apps/core/test_response.py
+++ b/tests/apps/core/test_response.py
@@ -101,9 +101,7 @@ class APIPaginatedResponseTest(TestCase):
     def test_paginated_response(self):
         """Test paginated response with correct metadata"""
         data = [{"id": 1}, {"id": 2}]
-        response = api_paginated_response(
-            data, page=1, page_size=10, total_count=25
-        )
+        response = api_paginated_response(data, page=1, page_size=10, total_count=25)
 
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data["data"], data)
diff --git a/tests/apps/core/test_services.py b/tests/apps/core/test_services.py
index f4fe1a6..e7b2c2e 100644
--- a/tests/apps/core/test_services.py
+++ b/tests/apps/core/test_services.py
@@ -21,7 +21,7 @@ class BaseServiceTest(TestCase):
         self.user = User.objects.create_user(
             username="testuser",
             email="test@example.com",
-            password="testpass123",
+            password="testpass123",  # noqa: S106
         )
 
     def test_get_by_id_success(self):
@@ -53,7 +53,7 @@ class BaseServiceTest(TestCase):
         User.objects.create_user(
             username="testuser2",
             email="test2@example.com",
-            password="testpass123",
+            password="testpass123",  # noqa: S106
         )
 
         result = UserTestService.get_all()
diff --git a/tests/apps/core/test_signals.py b/tests/apps/core/test_signals.py
index af7f76f..4444401 100644
--- a/tests/apps/core/test_signals.py
+++ b/tests/apps/core/test_signals.py
@@ -88,7 +88,7 @@ class SignalDispatcherTest(TestCase):
         self.dispatcher.connect_all()
 
         # Create user to trigger signal
-        user = UserFactory.create_user()
+        UserFactory.create_user()
 
         self.assertTrue(handler_called["value"])
 
@@ -114,7 +114,7 @@ class SignalDispatcherTest(TestCase):
 
         # Create user - handler should not be called
         handler_called["value"] = False
-        user = UserFactory.create_user()
+        UserFactory.create_user()
 
         self.assertFalse(handler_called["value"])
 
diff --git a/tests/apps/parsers/factories.py b/tests/apps/parsers/factories.py
index 4ff41ca..590403a 100644
--- a/tests/apps/parsers/factories.py
+++ b/tests/apps/parsers/factories.py
@@ -3,10 +3,7 @@
 import random
 from datetime import timedelta
 
-from django.utils import timezone
-
 import factory
-
 from apps.parsers.models import (
     IndustrialCertificateRecord,
     InspectionRecord,
@@ -14,6 +11,7 @@ from apps.parsers.models import (
     ParserLoadLog,
     Proxy,
 )
+from django.utils import timezone
 
 # === Хелперы для генерации реалистичных данных ===
 
@@ -320,7 +318,9 @@ class InspectionRecordFactory(factory.django.DjangoModelFactory):
         lambda _: random.choice(["плановая", "внеплановая"])
     )
     inspection_form = factory.LazyAttribute(
-        lambda _: random.choice(["документарная", "выездная", "документарная и выездная"])
+        lambda _: random.choice(
+            ["документарная", "выездная", "документарная и выездная"]
+        )
     )
     start_date = factory.LazyAttribute(
         lambda _: (timezone.now() - timedelta(days=random.randint(1, 180))).strftime(
@@ -339,9 +339,7 @@ class InspectionRecordFactory(factory.django.DjangoModelFactory):
         lambda _: random.choice(["294-ФЗ", "248-ФЗ", "184-ФЗ"])
     )
     result = factory.LazyAttribute(
-        lambda _: random.choice(
-            ["нарушения не выявлены", "выявлены нарушения", ""]
-        )
+        lambda _: random.choice(["нарушения не выявлены", "выявлены нарушения", ""])
         if random.random() > 0.3
         else ""
     )
diff --git a/tests/apps/parsers/test_clients.py b/tests/apps/parsers/test_clients.py
index e16594c..30bc53e 100644
--- a/tests/apps/parsers/test_clients.py
+++ b/tests/apps/parsers/test_clients.py
@@ -3,17 +3,15 @@
 from io import BytesIO
 from unittest.mock import patch
 
-from django.test import TestCase, tag
-
-from faker import Faker
-from openpyxl import Workbook
-
 from apps.parsers.clients.base import BaseHTTPClient, HTTPClientError
 from apps.parsers.clients.minpromtorg.industrial import IndustrialProductionClient
 from apps.parsers.clients.minpromtorg.manufactures import ManufacturesClient
 from apps.parsers.clients.minpromtorg.schemas import IndustrialCertificate, Manufacturer
 from apps.parsers.clients.proverki import ProverkiClient
 from apps.parsers.clients.proverki.schemas import Inspection
+from django.test import TestCase, tag
+from faker import Faker
+from openpyxl import Workbook
 
 fake = Faker("ru_RU")
 
@@ -159,7 +157,10 @@ class IndustrialProductionClientTest(TestCase):
                 {
                     "name": "Заключения о подтверждении производства промышленной продукции на территории Российской Федерации",
                     "files": [
-                        {"name": "data_resolutions_20240101.xlsx", "url": "/files/test.xlsx"},
+                        {
+                            "name": "data_resolutions_20240101.xlsx",
+                            "url": "/files/test.xlsx",
+                        },
                     ],
                 }
             ]
@@ -193,9 +194,18 @@ class IndustrialProductionClientTest(TestCase):
                 {
                     "name": "Заключения о подтверждении производства промышленной продукции на территории Российской Федерации",
                     "files": [
-                        {"name": "data_resolutions_20240101.xlsx", "url": "/files/old.xlsx"},
-                        {"name": "data_resolutions_20240315.xlsx", "url": "/files/new.xlsx"},
-                        {"name": "data_resolutions_20240201.xlsx", "url": "/files/mid.xlsx"},
+                        {
+                            "name": "data_resolutions_20240101.xlsx",
+                            "url": "/files/old.xlsx",
+                        },
+                        {
+                            "name": "data_resolutions_20240315.xlsx",
+                            "url": "/files/new.xlsx",
+                        },
+                        {
+                            "name": "data_resolutions_20240201.xlsx",
+                            "url": "/files/mid.xlsx",
+                        },
                     ],
                 }
             ]
@@ -539,7 +549,7 @@ class ProverkiClientTest(TestCase):
 
         client = ProverkiClient()
         xml_str = '<inspection inn="1234567890" registration_number="TEST123" organisation_name="Test Co"/>'
-        element = ET.fromstring(xml_str)
+        element = ET.fromstring(xml_str)  # noqa: S314
 
         result = client._parse_xml_record(element)
 
@@ -553,7 +563,7 @@ class ProverkiClientTest(TestCase):
 
         client = ProverkiClient()
         xml_str = "<empty_record></empty_record>"
-        element = ET.fromstring(xml_str)
+        element = ET.fromstring(xml_str)  # noqa: S314
 
         result = client._parse_xml_record(element)
 
@@ -569,9 +579,7 @@ class ProverkiClientTest(TestCase):
         <registration_number>TEST001</registration_number>
         <organisation_name>Компания</organisation_name>
     </inspection>
-</inspections>""".encode(
-            "windows-1251"
-        )
+</inspections>""".encode("windows-1251")
 
         inspections = client._parse_xml_content(xml_content, None)
 
diff --git a/tests/apps/parsers/test_models.py b/tests/apps/parsers/test_models.py
index 56c0e68..cc057c4 100644
--- a/tests/apps/parsers/test_models.py
+++ b/tests/apps/parsers/test_models.py
@@ -1,13 +1,12 @@
 """Tests for parsers models."""
 
-from django.test import TestCase
-
 from apps.parsers.models import (
     IndustrialCertificateRecord,
     ManufacturerRecord,
     ParserLoadLog,
     Proxy,
 )
+from django.test import TestCase
 
 from .factories import (
     IndustrialCertificateRecordFactory,
diff --git a/tests/apps/parsers/test_services.py b/tests/apps/parsers/test_services.py
index 0d41de9..a12d7a1 100644
--- a/tests/apps/parsers/test_services.py
+++ b/tests/apps/parsers/test_services.py
@@ -1,9 +1,5 @@
 """Tests for parsers services."""
 
-from django.test import TestCase
-
-from faker import Faker
-
 from apps.parsers.clients.minpromtorg.schemas import IndustrialCertificate, Manufacturer
 from apps.parsers.clients.proverki.schemas import Inspection
 from apps.parsers.models import (
@@ -20,6 +16,8 @@ from apps.parsers.services import (
     ParserLoadLogService,
     ProxyService,
 )
+from django.test import TestCase
+from faker import Faker
 
 from .factories import (
     IndustrialCertificateRecordFactory,
@@ -147,7 +145,9 @@ class ParserLoadLogServiceTest(TestCase):
 
     def test_get_next_batch_id_first(self):
         """Test getting first batch_id for new source."""
-        batch_id = ParserLoadLogService.get_next_batch_id(ParserLoadLog.Source.INDUSTRIAL)
+        batch_id = ParserLoadLogService.get_next_batch_id(
+            ParserLoadLog.Source.INDUSTRIAL
+        )
         self.assertEqual(batch_id, 1)
 
     def test_get_next_batch_id_increment(self):
@@ -155,7 +155,9 @@ class ParserLoadLogServiceTest(TestCase):
         ParserLoadLogFactory(batch_id=5, source=ParserLoadLog.Source.INDUSTRIAL)
         ParserLoadLogFactory(batch_id=3, source=ParserLoadLog.Source.INDUSTRIAL)
 
-        batch_id = ParserLoadLogService.get_next_batch_id(ParserLoadLog.Source.INDUSTRIAL)
+        batch_id = ParserLoadLogService.get_next_batch_id(
+            ParserLoadLog.Source.INDUSTRIAL
+        )
         self.assertEqual(batch_id, 6)
 
     def test_get_next_batch_id_per_source(self):
@@ -272,7 +274,9 @@ class IndustrialCertificateServiceTest(TestCase):
         results = IndustrialCertificateService.find_by_inn("1111111111")
         self.assertEqual(results.count(), 2)
 
-        results_batch1 = IndustrialCertificateService.find_by_inn("1111111111", batch_id=1)
+        results_batch1 = IndustrialCertificateService.find_by_inn(
+            "1111111111", batch_id=1
+        )
         self.assertEqual(results_batch1.count(), 1)
 
     def test_find_by_certificate_number(self):
@@ -313,7 +317,7 @@ class IndustrialCertificateServiceTest(TestCase):
                 ogrn="9999999999999",
             )
         ]
-        count2 = IndustrialCertificateService.save_certificates(duplicate, batch_id=2)
+        IndustrialCertificateService.save_certificates(duplicate, batch_id=2)
 
         # Should still be 1 record (duplicate skipped)
         self.assertEqual(IndustrialCertificateRecord.objects.count(), 1)
@@ -420,7 +424,7 @@ class ManufacturerServiceTest(TestCase):
                 address="New Address",
             )
         ]
-        count2 = ManufacturerService.save_manufacturers(duplicate, batch_id=2)
+        ManufacturerService.save_manufacturers(duplicate, batch_id=2)
 
         # Should still be 1 record (duplicate skipped)
         self.assertEqual(ManufacturerRecord.objects.count(), 1)
@@ -567,7 +571,7 @@ class InspectionServiceTest(TestCase):
                 result="выявлены нарушения",
             )
         ]
-        count2 = InspectionService.save_inspections(duplicate, batch_id=2)
+        InspectionService.save_inspections(duplicate, batch_id=2)
 
         # Should still be 1 record (duplicate skipped)
         self.assertEqual(InspectionRecord.objects.count(), 1)
@@ -581,10 +585,9 @@ class InspectionServiceTest(TestCase):
         self.assertEqual(record.load_batch, 1)  # Original batch
 
 
-from django.test import tag
-
 from apps.parsers.clients.base import HTTPClientError
 from apps.parsers.clients.minpromtorg.industrial import IndustrialProductionClient
+from django.test import tag
 
 
 @tag("integration", "slow", "network", "e2e")
@@ -674,4 +677,3 @@ class EndToEndIntegrationTest(TestCase):
 
         except HTTPClientError as e:
             self.skipTest(f"External API unavailable: {e}")
-
diff --git a/tests/apps/user/factories.py b/tests/apps/user/factories.py
index 4fcd031..6a9af2b 100644
--- a/tests/apps/user/factories.py
+++ b/tests/apps/user/factories.py
@@ -16,9 +16,7 @@ class UserFactory(factory.django.DjangoModelFactory):
 
     email = factory.LazyAttribute(lambda _: fake.unique.email())
     username = factory.LazyAttribute(lambda _: fake.unique.user_name())
-    phone = factory.LazyAttribute(
-        lambda _: f"+7{fake.numerify('##########')}"
-    )
+    phone = factory.LazyAttribute(lambda _: f"+7{fake.numerify('##########')}")
     is_verified = False
     is_staff = False
     is_superuser = False
@@ -58,7 +56,9 @@ class ProfileFactory(factory.django.DjangoModelFactory):
 
     class Meta:
         model = Profile
-        django_get_or_create = ("user",)  # Используем get_or_create для избежания дубликатов
+        django_get_or_create = (
+            "user",
+        )  # Используем get_or_create для избежания дубликатов
 
     user = factory.SubFactory(UserFactory)
     first_name = factory.LazyAttribute(lambda _: fake.first_name())