diff --git a/.github/actions/build-fantom-runner/action.yml b/.github/actions/build-fantom-runner/action.yml
new file mode 100644
index 00000000000000..8939435bd1cd19
--- /dev/null
+++ b/.github/actions/build-fantom-runner/action.yml
@@ -0,0 +1,91 @@
+name: Build Fantom Test Runner
+inputs:
+  release-type:
+    required: true
+    description: The type of release we are building. It could be nightly, release or dry-run
+  gradle-cache-encryption-key:
+    description: "The encryption key needed to store the Gradle Configuration cache"
+
+runs:
+  using: composite
+  steps:
+    - name: Install dependencies
+      shell: bash
+      run: |
+        sudo apt update
+        sudo apt install -y git cmake openssl libssl-dev clang
+    - name: Setup git safe folders
+      shell: bash
+      run: git config --global --add safe.directory '*'
+    - name: Setup node.js
+      uses: ./.github/actions/setup-node
+    - name: Install node dependencies
+      uses: ./.github/actions/yarn-install
+    - name: Setup gradle
+      uses: ./.github/actions/setup-gradle
+      with:
+        cache-read-only: "false"
+        cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
+    - name: Restore Fantom ccache
+      uses: actions/cache/restore@v4
+      with:
+        path: /github/home/.cache/ccache
+        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
+            'packages/react-native/ReactAndroid/**/*.cpp',
+            'packages/react-native/ReactAndroid/**/*.h',
+            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
+            'packages/react-native/ReactCommon/**/*.cpp',
+            'packages/react-native/ReactCommon/**/*.h',
+            'packages/react-native/ReactCommon/**/CMakeLists.txt',
+            'private/react-native-fantom/tester/**/*.cpp',
+            'private/react-native-fantom/tester/**/*.h',
+            'private/react-native-fantom/tester/**/CMakeLists.txt'
+          ) }}
+        restore-keys: |
+          v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-
+          v2-ccache-fantom-${{ github.job }}-
+          v2-ccache-fantom-
+    - name: Show ccache stats
+      shell: bash
+      run: ccache -s -v
+    - name: Build Fantom Test Runner
+      shell: bash
+      run: yarn workspace @react-native/fantom build
+      env:
+        CC: clang
+        CXX: clang++
+        FANTOM_FORCE_OSS_BUILD: 1
+    - name: Save Fantom ccache
+      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }}
+      uses: actions/cache/save@v4
+      with:
+        path: /github/home/.cache/ccache
+        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
+            'packages/react-native/ReactAndroid/**/*.cpp',
+            'packages/react-native/ReactAndroid/**/*.h',
+            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
+            'packages/react-native/ReactCommon/**/*.cpp',
+            'packages/react-native/ReactCommon/**/*.h',
+            'packages/react-native/ReactCommon/**/CMakeLists.txt',
+            'private/react-native-fantom/tester/**/*.cpp',
+            'private/react-native-fantom/tester/**/*.h',
+            'private/react-native-fantom/tester/**/CMakeLists.txt'
+          ) }}
+    - name: Show ccache stats
+      shell: bash
+      run: ccache -s -v
+    - name: Upload Fantom Build Artifacts
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: fantom-build-artifacts
+        path: |
+          private/react-native-fantom/build/tester/fantom_tester
+        compression-level: 1
+    - name: Upload build logs
+      if: ${{ always() }}
+      uses: actions/upload-artifact@v4.3.4
+      with:
+        name: build-fantom-runner-logs
+        compression-level: 1
+        path: |
+          private/react-native-fantom/build/reports
diff --git a/.github/actions/run-fantom-tests/action.yml b/.github/actions/run-fantom-tests/action.yml
index 1f143f2367bd57..8a5d7bc6f5e24e 100644
--- a/.github/actions/run-fantom-tests/action.yml
+++ b/.github/actions/run-fantom-tests/action.yml
@@ -9,70 +9,12 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Install dependencies
-      shell: bash
-      run: |
-        sudo apt update
-        sudo apt install -y git cmake openssl libssl-dev clang
-    - name: Setup git safe folders
-      shell: bash
-      run: git config --global --add safe.directory '*'
-    - name: Setup node.js
-      uses: ./.github/actions/setup-node
-    - name: Install node dependencies
-      uses: ./.github/actions/yarn-install
-    - name: Setup gradle
-      uses: ./.github/actions/setup-gradle
-      with:
-        cache-read-only: "false"
-        cache-encryption-key: ${{ inputs.gradle-cache-encryption-key }}
-    - name: Restore Fantom ccache
-      uses: actions/cache/restore@v4
-      with:
-        path: /github/home/.cache/ccache
-        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
-            'packages/react-native/ReactAndroid/**/*.cpp',
-            'packages/react-native/ReactAndroid/**/*.h',
-            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
-            'packages/react-native/ReactCommon/**/*.cpp',
-            'packages/react-native/ReactCommon/**/*.h',
-            'packages/react-native/ReactCommon/**/CMakeLists.txt',
-            'private/react-native-fantom/tester/**/*.cpp',
-            'private/react-native-fantom/tester/**/*.h',
-            'private/react-native-fantom/tester/**/CMakeLists.txt'
-          ) }}
-        restore-keys: |
-          v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-
-          v2-ccache-fantom-${{ github.job }}-
-          v2-ccache-fantom-
-    - name: Show ccache stats
-      shell: bash
-      run: ccache -s -v
     - name: Run Fantom Tests
       shell: bash
-      run: yarn fantom
+      run: yarn jest --config private/react-native-fantom/config/jest.config.js
       env:
-        CC: clang
-        CXX: clang++
-    - name: Save Fantom ccache
-      if: ${{ github.ref == 'refs/heads/main' || contains(github.ref, '-stable') }}
-      uses: actions/cache/save@v4
-      with:
-        path: /github/home/.cache/ccache
-        key: v2-ccache-fantom-${{ github.job }}-${{ github.ref }}-${{ hashFiles(
-            'packages/react-native/ReactAndroid/**/*.cpp',
-            'packages/react-native/ReactAndroid/**/*.h',
-            'packages/react-native/ReactAndroid/**/CMakeLists.txt',
-            'packages/react-native/ReactCommon/**/*.cpp',
-            'packages/react-native/ReactCommon/**/*.h',
-            'packages/react-native/ReactCommon/**/CMakeLists.txt',
-            'private/react-native-fantom/tester/**/*.cpp',
-            'private/react-native-fantom/tester/**/*.h',
-            'private/react-native-fantom/tester/**/CMakeLists.txt'
-          ) }}
-    - name: Show ccache stats
-      shell: bash
-      run: ccache -s -v
+        FANTOM_FORCE_OSS_BUILD: 1
+        NODE_OPTIONS: '--max-old-space-size=8192'
     - name: Upload test results
       if: ${{ always() }}
       uses: actions/upload-artifact@v4.3.4
diff --git a/.github/workflows/test-all.yml b/.github/workflows/test-all.yml
index d3091bdb80646d..7692170a32e52f 100644
--- a/.github/workflows/test-all.yml
+++ b/.github/workflows/test-all.yml
@@ -282,7 +282,7 @@ jobs:
           flavor: ${{ matrix.flavor }}
           working-directory: /tmp/RNTestProject
 
-  run_fantom_tests:
+  prebuild_fantom_tester:
     runs-on: 8-core-ubuntu
     needs: [set_release_type]
     container:
@@ -295,7 +295,39 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - name: Build and Test Fantom
+      - name: Build Fantom Test Runner
+        uses: ./.github/actions/build-fantom-runner
+        with:
+          release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}
+          gradle-cache-encryption-key: ${{ secrets.GRADLE_CACHE_ENCRYPTION_KEY }}
+
+  run_fantom_tests:
+    runs-on: 8-core-ubuntu
+    needs: [set_release_type, prebuild_fantom_tester]
+    container:
+      image: reactnativecommunity/react-native-android:latest
+      env:
+        TERM: "dumb"
+        GRADLE_OPTS: "-Dorg.gradle.daemon=false"
+        ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
+        ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup node.js
+        uses: ./.github/actions/setup-node
+      - name: Install node dependencies
+        uses: ./.github/actions/yarn-install
+      - name: Download Fantom Tester
+        uses: actions/download-artifact@v4
+        with:
+          name: fantom-build-artifacts
+          path: private/react-native-fantom/build/tester
+      - name: Make Fantom Tester executable
+        run: |
+          ls -la private/react-native-fantom/build/tester
+          chmod +x private/react-native-fantom/build/tester/fantom_tester
+      - name: Run Fantom Tests
         uses: ./.github/actions/run-fantom-tests
         with:
           release-type: ${{ needs.set_release_type.outputs.RELEASE_TYPE }}