diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 000000000..1779d39af
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,50 @@
+name: Test
+
+on:
+  pull_request:
+    branches:
+      - v2  # TODO: Remove!
+      - development
+      - main
+  push:
+    branches:
+      - main
+      - development
+
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.9", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
+
+      - name: Install package and test dependencies
+        run: |
+          # TODO: Once we have expressed dependencies in a more standard way:
+          # python -m pip install .[test]
+          python -m pip install .
+          python -m pip install -r requirements-dev.txt
+
+      - name: Type-check package
+        run: mypy
+
+      - name: Unit test
+        # TODO: Test behind EDL
+        run: pytest icepyx/ --verbose --cov app --ignore=icepyx/tests/test_behind_NSIDC_API_login.py --ignore=icepyx/tests/test_auth.py
+
+      - name: Upload coverage report
+        uses: codecov/codecov-action@v4.5.0
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
diff --git a/pyproject.toml b/pyproject.toml
index 4f4c0a88c..8748a81d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,6 +61,8 @@ version_file = "_icepyx_version.py"
 version_file_template = 'version = "{version}"'
 local_scheme = "node-and-date"
 fallback_version = "unknown"
+
+
 # [tool.ruff.format]
 # docstring-code-format = true
 # docstring-code-line-length = "dynamic"
@@ -98,3 +100,40 @@ ignore = [
 
 # Ignore too many leading '#' for block comment
 "*/tests/*" = ["E266"]
+
+
+[tool.mypy]
+files = "icepyx/."
+mypy_path = ["icepyx"]
+# TODO: Enable ASAP:
+check_untyped_defs = false
+# TODO: Then enable:
+disallow_untyped_defs = false
+disallow_incomplete_defs = false
+# TODO: Finally enable (and delete settings above; strict includes them):
+strict = false
+
+[[tool.mypy.overrides]]
+# Help us adopt mypy by skipping some modules entirely
+# GOAL: Remove this whole section!
+module = [
+  "icepyx.core.read",
+  "icepyx.core.query",
+  "icepyx.core.visualization",
+  "icepyx.quest.dataset_scripts.argo",
+  "icepyx.tests.test_Earthdata",
+]
+ignore_errors = true
+
+[[tool.mypy.overrides]]
+module = [
+  "dask.*",
+  "datashader.*",
+  "h5py.*",
+  "holoviews.*",
+  "geopandas.*",
+  "geoviews.*",
+  "pypistats.*",
+  "shapely.*",
+]
+ignore_missing_imports = true
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 66106dab8..8a11cd9e4 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -3,3 +3,8 @@ pypistats
 pytest>=4.6
 pytest-cov
 responses
+mypy
+pandas-stubs
+types-docutils
+types-requests
+types-tqdm