diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index 7426dc6a1..1a55bedd0 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -70,11 +70,18 @@ steps:
           make setup-rust
 
           echo "--- :swift: Building xcframework"
-          make xcframework
-          zip -r target/libwordpressFFI.xcframework.zip target/libwordpressFFI.xcframework
+          install_gems
+          bundle exec fastlane set_up_signing
+
+          make xcframework-package
+          make xcframework-package-checksum
+          make xcframework-sign
+
         artifact_paths:
-          - target/libwordpressFFI.xcframework.zip
+          - libwordpressFFI.xcframework.zip
+          - libwordpressFFI.xcframework.zip.checksum.txt
           - native/swift/Sources/wordpress-api-wrapper/*.swift
+        plugins: [$CI_TOOLKIT]
         agents:
           queue: mac
       - label: ":swift: Build Docs"
diff --git a/.buildkite/release.sh b/.buildkite/release.sh
index 3998808d4..c06b26e3a 100755
--- a/.buildkite/release.sh
+++ b/.buildkite/release.sh
@@ -21,9 +21,13 @@ make setup-rust
 echo "--- :rubygems: Setting up Gems"
 install_gems
 
+echo "--- :closed_lock_with_key: Setting up Code Signing"
+bundle exec fastlane set_up_signing
+
 echo "--- :rust: Building XCFramework"
 make xcframework-package
 make xcframework-package-checksum
+make xcframework-sign
 
 release_version="$1"
 echo "--- :rocket: Publish release $release_version"
diff --git a/Makefile b/Makefile
index b3e435f64..913c8574d 100644
--- a/Makefile
+++ b/Makefile
@@ -137,6 +137,9 @@ xcframework-package: xcframework-all
 xcframework-package-checksum:
 	swift package compute-checksum libwordpressFFI.xcframework.zip | tee libwordpressFFI.xcframework.zip.checksum.txt
 
+xcframework-sign:
+	codesign --timestamp -v --sign "Apple Development: Created via API (886NX39KP6)" target/libwordpressFFI.xcframework
+
 docker-image-web:
 	docker build -t wordpress-rs-web -f wp_rs_web/Dockerfile . --progress=plain
 
diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index ac7bd7377..6cc7b6a40 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -24,6 +24,21 @@ PROJECT_NAME = 'wordpress-rs'
 # GlotPress configuration
 GLOTPRESS_PROJECT_BASE_URL = 'https://translate.wordpress.com/projects/mobile/wordpress-rs'
 
+# Code Signing
+APPLE_TEAM_ID = 'PZYM8XX95Q'
+APPLE_BUNDLE_IDENTIFIER = 'com.automattic.hostmgr'
+
+ASC_API_KEY_ENV_VARS = %w[
+  APP_STORE_CONNECT_API_KEY_KEY_ID
+  APP_STORE_CONNECT_API_KEY_ISSUER_ID
+  APP_STORE_CONNECT_API_KEY_KEY
+].freeze
+
+CODE_SIGNING_STORAGE_ENV_VARS = %w[
+  MATCH_S3_ACCESS_KEY
+  MATCH_S3_SECRET_ACCESS_KEY
+].freeze
+
 # Supported locales mapping between GlotPress and project locale codes
 # This list combines locales supported in the iOS and Android apps
 SUPPORTED_LOCALES = [
@@ -90,7 +105,7 @@ lane :release do |options|
 
   validate
   update_swift_package
-  publish_github_release
+  publish_release_to_github
   publish_to_s3
 end
 
@@ -124,7 +139,7 @@ lane :update_swift_package do
   File.open(file_path, 'w') { |file| file.puts lines }
 end
 
-lane :publish_github_release do
+lane :publish_release_to_github do
   version = lane_context[LANE_VALUE_VERSION] || UI.user_error!('Missing version lane context')
   github_token = lane_context[LANE_VALUE_GITHUB_TOKEN] || UI.user_error!('Missing github token lane context')
 
@@ -396,6 +411,27 @@ lane :generate_fluent_file_from_po do |file_path:|
   fluent_file_path
 end
 
+desc 'Download the development signing certificates to this machine'
+lane :set_up_signing do |readonly: true|
+  require_env_vars!(*ASC_API_KEY_ENV_VARS, *CODE_SIGNING_STORAGE_ENV_VARS)
+
+  sync_code_signing(
+    platform: 'macos',
+    app_identifier: APPLE_BUNDLE_IDENTIFIER,
+    team_id: APPLE_TEAM_ID,
+    api_key: app_store_connect_api_key,
+    type: 'development',
+    certificate_id: 'Apple Development: Created via API (886NX39KP6)',
+
+    storage_mode: 's3',
+    s3_region: 'us-east-2',
+    s3_bucket: 'a8c-fastlane-match',
+
+    readonly: readonly
+  )
+end
+
+
 # Utils
 
 def xcframework_checksum
@@ -463,3 +499,17 @@ def only_date_headers_changed?(file_path)
 
   changed_lines.all? { |l| l.include?('"POT-Creation-Date:') || l.include?('"PO-Revision-Date:') }
 end
+
+# Use this to ensure all env vars a lane requires are set.
+#
+# The best place to call this is at the start of a lane, to fail early.
+def require_env_vars!(*keys)
+  keys.each { |key| get_required_env!(key) }
+end
+
+# Use this instead of getting values from `ENV` directly. It will throw an error if the requested value is missing.
+def get_required_env!(key)
+  return ENV.fetch(key) if ENV.key?(key)
+
+  UI.user_error!("Environment variable `#{key}` is not set.")
+end