diff --git a/.github/workflows/bundle-desktop-intel.yml b/.github/workflows/bundle-desktop-intel.yml
index ee69ed7eb95f..4e1101add944 100644
--- a/.github/workflows/bundle-desktop-intel.yml
+++ b/.github/workflows/bundle-desktop-intel.yml
@@ -26,20 +26,7 @@ on:
         required: false
         default: ''
     secrets:
-      CERTIFICATE_OSX_APPLICATION:
-        description: 'Certificate for macOS application signing'
-        required: false
-      CERTIFICATE_PASSWORD:
-        description: 'Password for the macOS certificate'
-        required: false
-      APPLE_ID:
-        description: 'Apple ID for notarization'
-        required: false
-      APPLE_ID_PASSWORD:
-        description: 'Password for the Apple ID'
-        required: false
-      APPLE_TEAM_ID:
-        description: 'Apple Team ID'
+      OSX_CODESIGN_ROLE:
         required: false
 
 name: Reusable workflow to bundle desktop app for Intel Mac
@@ -48,37 +35,14 @@ jobs:
   bundle-desktop-intel:
     runs-on: macos-latest
     name: Bundle Desktop App on Intel macOS
+    permissions:
+      id-token: write
+      contents: read
     steps:
       # Check initial disk space
       - name: Check initial disk space
         run: df -h
 
-      # Validate Signing Secrets if signing is enabled
-      - name: Validate Signing Secrets
-        if: ${{ inputs.signing }}
-        run: |
-          if [[ -z "${{ secrets.CERTIFICATE_OSX_APPLICATION }}" ]]; then
-            echo "Error: CERTIFICATE_OSX_APPLICATION secret is required for signing."
-            exit 1
-          fi
-          if [[ -z "${{ secrets.CERTIFICATE_PASSWORD }}" ]]; then
-            echo "Error: CERTIFICATE_PASSWORD secret is required for signing."
-            exit 1
-          fi
-          if [[ -z "${{ secrets.APPLE_ID }}" ]]; then
-            echo "Error: APPLE_ID secret is required for signing."
-            exit 1
-          fi
-          if [[ -z "${{ secrets.APPLE_ID_PASSWORD }}" ]]; then
-            echo "Error: APPLE_ID_PASSWORD secret is required for signing."
-            exit 1
-          fi
-          if [[ -z "${{ secrets.APPLE_TEAM_ID }}" ]]; then
-            echo "Error: APPLE_TEAM_ID secret is required for signing."
-            exit 1
-          fi
-          echo "All required signing secrets are present."
-
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:
@@ -186,14 +150,6 @@ jobs:
           cp temporal-service/temporal-service ui/desktop/src/bin/temporal-service
           cp bin/temporal ui/desktop/src/bin/temporal
 
-      - name: Add MacOS certs for signing and notarization
-        if: ${{ inputs.signing }}
-        run: ./scripts/add-macos-cert.sh
-        working-directory: ui/desktop
-        env:
-          CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-          CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-
       - name: Install dependencies
         run: source ../../bin/activate-hermit && npm ci
         working-directory: ui/desktop
@@ -209,8 +165,7 @@ jobs:
       - name: Check disk space before bundling
         run: df -h
 
-      - name: Make Unsigned App
-        if: ${{ !inputs.signing }}
+      - name: Build App
         run: |
           source ../../bin/activate-hermit
           attempt=0
@@ -227,27 +182,76 @@ jobs:
           fi
         working-directory: ui/desktop
 
-      - name: Make Signed App
+      - name: Configure AWS credentials
+        if: ${{ inputs.signing }}
+        uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4
+        with:
+          role-to-assume: "${{ secrets.OSX_CODESIGN_ROLE }}"
+          aws-region: us-west-2
+
+      - name: Codesigning and Notarization
         if: ${{ inputs.signing }}
         run: |
-          source ../../bin/activate-hermit
-          attempt=0
-          max_attempts=2
-          until [ $attempt -ge $max_attempts ]; do
-            npm run bundle:intel && break
-            attempt=$((attempt + 1))
-            echo "Attempt $attempt failed. Retrying..."
-            sleep 5
-          done
-          if [ $attempt -ge $max_attempts ]; then
-            echo "Action failed after $max_attempts attempts."
+          set -e
+
+          echo "⬆️ uploading unsigned app"
+          source_job_url="https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          unsigned_url="s3://block-goose-artifacts-bucket-production/unsigned/goose-${GITHUB_SHA}-${{ github.run_id }}-intel.zip"
+
+          zip -q -u -r out/Goose-darwin-x64/Goose_intel_mac.zip entitlements.plist
+
+          # upload unsigned goose to transfer bucket so it can be passed to lambda
+          aws s3 cp --quiet out/Goose-darwin-x64/Goose_intel_mac.zip "${unsigned_url}"
+
+          # begin signing
+          echo "🚀 launching signing process"
+          aws lambda invoke \
+            --function-name codesign_helper \
+            --cli-binary-format raw-in-base64-out \
+            --payload "{\"source_s3_url\": \"${unsigned_url}\", \"source_job_url\": \"${source_job_url}\"}" \
+            response.json > /dev/null
+
+          if [ "$(jq -r .statusCode response.json)" != "200" ]; then
+            echo "⚠️ lambda function did not return expected status code"
             exit 1
           fi
+
+          build_number="$(jq -r .body.build_number response.json)"
+
+          start_time=$(date +%s)
+
+          while sleep 30; do
+            aws lambda invoke \
+              --function-name codesign_helper \
+              --cli-binary-format raw-in-base64-out \
+              --payload "{\"source_s3_url\": \"${unsigned_url}\", \"build_number\": \"${build_number}\"}" \
+              response.json > /dev/null
+
+            if [ "$(jq -r .statusCode response.json)" != "200" ]; then
+              echo "⚠️ signing request returned unexpected response code $(jq -r .statusCode response.json):"
+              jq . response.json
+              exit 1
+            fi
+
+            if [ "$(jq -r .body.state response.json)" == "completed" ]; then
+              echo "✅ signing complete ($(($(date +%s) - start_time))s)"
+              break
+            fi
+
+            if [ $(($(date +%s) - start_time)) -ge 900 ]; then
+              echo "⚠️ timed out ($(($(date +%s) - start_time))s)"
+              exit 1
+            fi
+            echo "⏲️ waiting for signing to complete ($(($(date +%s) - start_time))s)"
+          done
+
+          # parse lambda response
+          signed_url=$(jq -r .body.destination_url response.json)
+
+          # download the signed app from S3
+          echo "⬇️ downloading signed app"
+          aws s3 cp --quiet "${signed_url}" out/Goose-darwin-x64/Goose_intel_mac.zip
         working-directory: ui/desktop
-        env:
-          APPLE_ID: ${{ secrets.APPLE_ID }}
-          APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
 
       - name: Final cleanup before artifact upload
         run: |
diff --git a/.github/workflows/bundle-desktop.yml b/.github/workflows/bundle-desktop.yml
index b015303c74f4..8f4543a60cd8 100644
--- a/.github/workflows/bundle-desktop.yml
+++ b/.github/workflows/bundle-desktop.yml
@@ -27,20 +27,7 @@ on:
         type: string
         default: ''
     secrets:
-      CERTIFICATE_OSX_APPLICATION:
-        description: 'Certificate for macOS application signing'
-        required: false
-      CERTIFICATE_PASSWORD:
-        description: 'Password for the macOS certificate'
-        required: false
-      APPLE_ID:
-        description: 'Apple ID for notarization'
-        required: false
-      APPLE_ID_PASSWORD:
-        description: 'Password for the Apple ID'
-        required: false
-      APPLE_TEAM_ID:
-        description: 'Apple Team ID'
+      OSX_CODESIGN_ROLE:
         required: false
 
 name: Reusable workflow to bundle desktop app
@@ -49,6 +36,9 @@ jobs:
   bundle-desktop:
     runs-on: macos-latest
     name: Bundle Desktop App on macOS
+    permissions:
+      id-token: write
+      contents: read
     steps:
       # Debug information about the workflow and inputs
       - name: Debug workflow info
@@ -78,31 +68,6 @@ jobs:
       - name: Check initial disk space
         run: df -h
 
-      # Validate Signing Secrets if signing is enabled
-      - name: Validate Signing Secrets
-        if: ${{ inputs.signing }}
-        env:
-          HAS_CERT: ${{ secrets.CERTIFICATE_OSX_APPLICATION != '' }}
-          HAS_CERT_PASS: ${{ secrets.CERTIFICATE_PASSWORD != '' }}
-          HAS_APPLE_ID: ${{ secrets.APPLE_ID != '' }}
-          HAS_APPLE_PASS: ${{ secrets.APPLE_ID_PASSWORD != '' }}
-          HAS_TEAM_ID: ${{ secrets.APPLE_TEAM_ID != '' }}
-        run: |
-          missing=()
-          [[ "${HAS_CERT}" != "true" ]] && missing+=("CERTIFICATE_OSX_APPLICATION")
-          [[ "${HAS_CERT_PASS}" != "true" ]] && missing+=("CERTIFICATE_PASSWORD")
-          [[ "${HAS_APPLE_ID}" != "true" ]] && missing+=("APPLE_ID")
-          [[ "${HAS_APPLE_PASS}" != "true" ]] && missing+=("APPLE_ID_PASSWORD")
-          [[ "${HAS_TEAM_ID}" != "true" ]] && missing+=("APPLE_TEAM_ID")
-          
-          if (( ${#missing[@]} > 0 )); then
-            echo "Error: Missing required signing secrets:"
-            printf '%s\n' "${missing[@]}"
-            exit 1
-          fi
-          
-          echo "All required signing secrets are present."
-
       - name: Checkout code
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
         with:
@@ -224,14 +189,6 @@ jobs:
           cp temporal-service/temporal-service ui/desktop/src/bin/temporal-service
           cp bin/temporal ui/desktop/src/bin/temporal
 
-      - name: Add MacOS certs for signing and notarization
-        if: ${{ inputs.signing }}
-        run: ./scripts/add-macos-cert.sh
-        working-directory: ui/desktop
-        env:
-          CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-          CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-
       - name: Install dependencies
         run: source ../../bin/activate-hermit && npm ci
         working-directory: ui/desktop
@@ -240,8 +197,7 @@ jobs:
       - name: Check disk space before bundling
         run: df -h
 
-      - name: Make Unsigned App
-        if: ${{ !inputs.signing }}
+      - name: Build App
         run: |
           source ../../bin/activate-hermit
           attempt=0
@@ -258,26 +214,75 @@ jobs:
           fi
         working-directory: ui/desktop
 
-      - name: Make Signed App
+      - name: Configure AWS credentials
+        if: ${{ inputs.signing }}
+        uses: aws-actions/configure-aws-credentials@e3dd6a429d7300a6a4c196c26e071d42e0343502 # v4
+        with:
+          role-to-assume: "${{ secrets.OSX_CODESIGN_ROLE }}"
+          aws-region: us-west-2
+
+      - name: Codesigning and Notarization
         if: ${{ inputs.signing }}
-        env:
-          APPLE_ID: ${{ secrets.APPLE_ID }}
-          APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
         run: |
+          set -e
 
-          attempt=0
-          max_attempts=2
-          until [ $attempt -ge $max_attempts ]; do
-            npm run bundle:default && break
-            attempt=$((attempt + 1))
-            echo "Attempt $attempt failed. Retrying..."
-            sleep 5
-          done
-          if [ $attempt -ge $max_attempts ]; then
-            echo "Action failed after $max_attempts attempts."
+          echo "⬆️ uploading unsigned app"
+          source_job_url="https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+          unsigned_url="s3://block-goose-artifacts-bucket-production/unsigned/goose-${GITHUB_SHA}-${{ github.run_id }}-arm64.zip"
+          
+          zip -q -u -r out/Goose-darwin-arm64/Goose.zip entitlements.plist
+
+          # upload unsigned goose to transfer bucket so it can be passed to lambda
+          aws s3 cp --quiet out/Goose-darwin-arm64/Goose.zip "${unsigned_url}"
+
+          # begin signing
+          echo "🚀 launching signing process"
+          aws lambda invoke \
+            --function-name codesign_helper \
+            --cli-binary-format raw-in-base64-out \
+            --payload "{\"source_s3_url\": \"${unsigned_url}\", \"source_job_url\": \"${source_job_url}\"}" \
+            response.json > /dev/null
+
+          if [ "$(jq -r .statusCode response.json)" != "200" ]; then
+            echo "⚠️ lambda function did not return expected status code"
             exit 1
           fi
+
+          build_number="$(jq -r .body.build_number response.json)"
+
+          start_time=$(date +%s)
+
+          while sleep 30; do
+            aws lambda invoke \
+              --function-name codesign_helper \
+              --cli-binary-format raw-in-base64-out \
+              --payload "{\"source_s3_url\": \"${unsigned_url}\", \"build_number\": \"${build_number}\"}" \
+              response.json > /dev/null
+
+            if [ "$(jq -r .statusCode response.json)" != "200" ]; then
+              echo "⚠️ signing request returned unexpected response code $(jq -r .statusCode response.json):"
+              jq . response.json
+              exit 1
+            fi
+
+            if [ "$(jq -r .body.state response.json)" == "completed" ]; then
+              echo "✅ signing complete ($(($(date +%s) - start_time))s)"
+              break
+            fi
+
+            if [ $(($(date +%s) - start_time)) -ge 900 ]; then
+              echo "⚠️ timed out ($(($(date +%s) - start_time))s)"
+              exit 1
+            fi
+            echo "⏲️ waiting for signing to complete ($(($(date +%s) - start_time))s)"
+          done
+
+          # parse lambda response
+          signed_url=$(jq -r .body.destination_url response.json)
+
+          # download the signed app from S3
+          echo "⬇️ downloading signed app"
+          aws s3 cp --quiet "${signed_url}" out/Goose-darwin-arm64/Goose.zip
         working-directory: ui/desktop
 
       - name: Final cleanup before artifact upload
diff --git a/.github/workflows/canary.yml b/.github/workflows/canary.yml
index ac266085c48c..55cf394983b2 100644
--- a/.github/workflows/canary.yml
+++ b/.github/workflows/canary.yml
@@ -67,13 +67,7 @@ jobs:
     uses: ./.github/workflows/bundle-desktop.yml
     with:
       version: ${{ needs.prepare-version.outputs.version }}
-      signing: true
-    secrets:
-      CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-      CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-      APPLE_ID: ${{ secrets.APPLE_ID }}
-      APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+      signing: false
 
   # ------------------------------------------------------------
   # 5) Bundle Desktop App (Linux) - builds goosed and Electron app
@@ -92,11 +86,7 @@ jobs:
     uses: ./.github/workflows/bundle-desktop-windows.yml
     with:
       version: ${{ needs.prepare-version.outputs.version }}
-      signing: true
-    secrets:
-      WINDOWS_CODESIGN_CERTIFICATE: ${{ secrets.WINDOWS_CODESIGN_CERTIFICATE }}
-      WINDOW_SIGNING_ROLE: ${{ secrets.WINDOW_SIGNING_ROLE }}
-      WINDOW_SIGNING_ROLE_TAG: ${{ secrets.WINDOW_SIGNING_ROLE_TAG }}
+      signing: false
 
   # ------------------------------------
   # 7) Create/Update GitHub Release
diff --git a/.github/workflows/pr-comment-bundle-intel.yml b/.github/workflows/pr-comment-bundle-intel.yml
index 9bab3820dc58..e0f63c699879 100644
--- a/.github/workflows/pr-comment-bundle-intel.yml
+++ b/.github/workflows/pr-comment-bundle-intel.yml
@@ -64,14 +64,8 @@ jobs:
     if: ${{ needs.trigger-on-command.outputs.continue == 'true' }}
     uses: ./.github/workflows/bundle-desktop-intel.yml
     with:
-      signing: true
+      signing: false
       ref: ${{ needs.trigger-on-command.outputs.head_sha }}
-    secrets:
-      CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-      CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-      APPLE_ID: ${{ secrets.APPLE_ID }}
-      APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
 
   pr-comment-intel:
     name: PR Comment with macOS Intel App
diff --git a/.github/workflows/pr-comment-bundle.yml b/.github/workflows/pr-comment-bundle.yml
index 2b3002fb8f27..0561682a2b38 100644
--- a/.github/workflows/pr-comment-bundle.yml
+++ b/.github/workflows/pr-comment-bundle.yml
@@ -108,14 +108,8 @@ jobs:
     if: ${{ needs.trigger-on-command.outputs.continue == 'true' }}
     uses: ./.github/workflows/bundle-desktop.yml
     with:
-      signing: true
+      signing: false
       ref: ${{ needs.trigger-on-command.outputs.pr_sha }}
-    secrets:
-      CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-      CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-      APPLE_ID: ${{ secrets.APPLE_ID }}
-      APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
 
   pr-comment-arm64:
     name: PR Comment with macOS ARM64 App
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c75ade9f9069..644518a5c1ce 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -47,11 +47,7 @@ jobs:
     with:
       signing: true
     secrets:
-      CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-      CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-      APPLE_ID: ${{ secrets.APPLE_ID }}
-      APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+      OSX_CODESIGN_ROLE: ${{ secrets.OSX_CODESIGN_ROLE }}
 
   # ------------------------------------------------------------
   # 4) Bundle Desktop App (macOS)
@@ -61,11 +57,7 @@ jobs:
     with:
       signing: true
     secrets:
-      CERTIFICATE_OSX_APPLICATION: ${{ secrets.CERTIFICATE_OSX_APPLICATION }}
-      CERTIFICATE_PASSWORD: ${{ secrets.CERTIFICATE_PASSWORD }}
-      APPLE_ID: ${{ secrets.APPLE_ID }}
-      APPLE_ID_PASSWORD: ${{ secrets.APPLE_ID_PASSWORD }}
-      APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+      OSX_CODESIGN_ROLE: ${{ secrets.OSX_CODESIGN_ROLE }}
 
   # ------------------------------------------------------------
   # 5) Bundle Desktop App (Linux)
diff --git a/ui/desktop/forge.config.ts b/ui/desktop/forge.config.ts
index 432e7e662c36..b10e8862c12e 100644
--- a/ui/desktop/forge.config.ts
+++ b/ui/desktop/forge.config.ts
@@ -33,26 +33,8 @@ let cfg = {
       }
     ]
   },
-  // macOS specific configuration
-  osxSign: {
-    entitlements: 'entitlements.plist',
-    'entitlements-inherit': 'entitlements.plist',
-    'gatekeeper-assess': false,
-    hardenedRuntime: true,
-    identity: 'Developer ID Application: Michael Neale (W2L75AE9HQ)',
-  },
-  osxNotarize: {
-    appleId: process.env['APPLE_ID'],
-    appleIdPassword: process.env['APPLE_ID_PASSWORD'],
-    teamId: process.env['APPLE_TEAM_ID'],
-  },
 };
 
-if (process.env['APPLE_ID'] === undefined) {
-  delete cfg.osxNotarize;
-  delete cfg.osxSign;
-}
-
 module.exports = {
   packagerConfig: cfg,
   rebuildConfig: {},