diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..8bec74a
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,96 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Install dependencies
+        run: pip install -e ".[dev]"
+
+      - name: Lint with ruff
+        run: ruff check src/ tests/
+
+      - name: Check formatting with ruff
+        run: ruff format --check src/ tests/
+
+  type-check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Install dependencies
+        run: pip install -e ".[dev]"
+
+      - name: Type check with mypy
+        run: mypy src/
+
+  test:
+    runs-on: ubuntu-latest
+
+    services:
+      postgres:
+        image: postgres:15
+        env:
+          POSTGRES_DB: test_db
+          POSTGRES_USER: test
+          POSTGRES_PASSWORD: test
+        ports:
+          - "5432:5432"
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+      redis:
+        image: redis:7
+        ports:
+          - "6379:6379"
+        options: >-
+          --health-cmd "redis-cli ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Install dependencies
+        run: pip install -e ".[dev]"
+
+      - name: Run tests with coverage
+        run: pytest --cov=src --cov-report=xml --cov-report=term-missing
+        env:
+          DATABASE_URL: postgresql://test:test@localhost:5432/test_db
+          REDIS_URL: redis://localhost:6379
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          files: ./coverage.xml
+          fail_ci_if_error: false
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}