diff --git a/.github/actions/build-arch-binary/action.yml b/.github/actions/build-arch-binary/action.yml
new file mode 100644
index 00000000..f51f89f3
--- /dev/null
+++ b/.github/actions/build-arch-binary/action.yml
@@ -0,0 +1,41 @@
+name: Build and upload arch-specific binary
+description: Builds a Rust binary for a specific CPU architecture and uploads it to GCS.
+
+inputs:
+  arch:
+    description: CPU architecture target (e.g. znver5, sapphirerapids)
+    required: true
+  binary_name:
+    description: Binary crate name with hyphens (e.g. stwo-run-and-prove)
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: Setup environment variables
+      shell: bash
+      env:
+        BINARY_NAME_ORIGINAL: ${{ inputs.binary_name }}
+        ARCH_NAME: ${{ inputs.arch }}
+      run: |
+        echo "BINARY_NAME_ORIGINAL=${BINARY_NAME_ORIGINAL}" >> $GITHUB_ENV
+        echo "BINARY_NAME_DEST=${BINARY_NAME_ORIGINAL//-/_}" >> $GITHUB_ENV
+        echo "ARCH_NAME=${ARCH_NAME}" >> $GITHUB_ENV
+
+    - name: Build ${{ env.BINARY_NAME_ORIGINAL }} for ${{ env.ARCH_NAME }}
+      shell: bash
+      run: |
+        CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=${{ env.ARCH_NAME }}" \
+          cargo build --release --target x86_64-unknown-linux-gnu --bin ${{ env.BINARY_NAME_ORIGINAL }}
+
+    - name: Rename ${{ env.BINARY_NAME_ORIGINAL }} to ${{ env.BINARY_NAME_DEST }} (${{ env.ARCH_NAME }})
+      shell: bash
+      run: |
+        mv "target/x86_64-unknown-linux-gnu/release/${{ env.BINARY_NAME_ORIGINAL }}" \
+          "target/x86_64-unknown-linux-gnu/release/${{ env.BINARY_NAME_DEST }}"
+
+    - name: Upload ${{ env.BINARY_NAME_DEST }} (${{ env.ARCH_NAME }}) to GCP
+      uses: google-github-actions/upload-cloud-storage@v2
+      with:
+        path: "target/x86_64-unknown-linux-gnu/release/${{ env.BINARY_NAME_DEST }}"
+        destination: "${{ env.BINARY_NAME_DEST }}_${{ env.ARCH_NAME }}_artifacts/${{ env.SHORT_HASH }}/release"
diff --git a/.github/workflows/upload_artifacts_workflow.yml b/.github/workflows/upload_artifacts_workflow.yml
index 7b9a8931..10c7cf21 100644
--- a/.github/workflows/upload_artifacts_workflow.yml
+++ b/.github/workflows/upload_artifacts_workflow.yml
@@ -53,86 +53,38 @@ jobs:
           path: "target/release/stwo_run_and_prove"
           destination: "stwo_run_and_prove_artifacts/${{ env.SHORT_HASH }}/release"
 
-      - name: Build stwo_run_and_prove for znver5 architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=znver5" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
-
-      - name: Rename stwo-run-and-prove binary (znver5)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
-
-      - name: Upload stwo_run_and_prove_znver5 binary to GCP
-        id: upload_stwo_run_and_prove_znver5
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for znver5
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_znver5_artifacts/${{ env.SHORT_HASH }}/release"
-
-      - name: Build stwo_run_and_prove for znver4 architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=znver4" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
+          arch: znver5
+          binary_name: stwo-run-and-prove
 
-      - name: Rename stwo-run-and-prove binary (znver4)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
-
-      - name: Upload stwo_run_and_prove_znver4 binary to GCP
-        id: upload_stwo_run_and_prove_znver4
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for znver4
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_znver4_artifacts/${{ env.SHORT_HASH }}/release"
-
-      - name: Build stwo_run_and_prove for znver3 architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=znver3" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
-
-      - name: Rename stwo-run-and-prove binary (znver3)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
+          arch: znver4
+          binary_name: stwo-run-and-prove
 
-      - name: Upload stwo_run_and_prove_znver3 binary to GCP
-        id: upload_stwo_run_and_prove_znver3
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for znver3
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_znver3_artifacts/${{ env.SHORT_HASH }}/release"
+          arch: znver3
+          binary_name: stwo-run-and-prove
 
-      - name: Build stwo_run_and_prove for emeraldrapids architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=emeraldrapids" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
-
-      - name: Rename stwo-run-and-prove binary (emeraldrapids)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
-
-      - name: Upload stwo_run_and_prove_emeraldrapids binary to GCP
-        id: upload_stwo_run_and_prove_emeraldrapids
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for emeraldrapids
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_emeraldrapids_artifacts/${{ env.SHORT_HASH }}/release"
-
-      - name: Build stwo_run_and_prove for sapphirerapids architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=sapphirerapids" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
+          arch: emeraldrapids
+          binary_name: stwo-run-and-prove
 
-      - name: Rename stwo-run-and-prove binary (sapphirerapids)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
-
-      - name: Upload stwo_run_and_prove_sapphirerapids binary to GCP
-        id: upload_stwo_run_and_prove_sapphirerapids
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for sapphirerapids
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_sapphirerapids_artifacts/${{ env.SHORT_HASH }}/release"
-
-      - name: Build stwo_run_and_prove for graniterapids architecture
-        run: |
-          CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_RUSTFLAGS="-C target-cpu=graniterapids" cargo build --release --target x86_64-unknown-linux-gnu --bin stwo-run-and-prove
-
-      - name: Rename stwo-run-and-prove binary (graniterapids)
-        run: mv target/x86_64-unknown-linux-gnu/release/stwo-run-and-prove target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove
+          arch: sapphirerapids
+          binary_name: stwo-run-and-prove
 
-      - name: Upload stwo_run_and_prove_graniterapids binary to GCP
-        id: upload_stwo_run_and_prove_graniterapids
-        uses: "google-github-actions/upload-cloud-storage@v2"
+      - name: Build and upload stwo_run_and_prove for graniterapids
+        uses: ./.github/actions/build-arch-binary
         with:
-          path: "target/x86_64-unknown-linux-gnu/release/stwo_run_and_prove"
-          destination: "stwo_run_and_prove_graniterapids_artifacts/${{ env.SHORT_HASH }}/release"
+          arch: graniterapids
+          binary_name: stwo-run-and-prove