diff --git a/eng/common/templates/job/job.yml b/eng/common/templates/job/job.yml
index 486eef770dd..ef337eac55e 100644
--- a/eng/common/templates/job/job.yml
+++ b/eng/common/templates/job/job.yml
@@ -73,6 +73,10 @@ jobs:
   - ${{ if eq(parameters.enableRichCodeNavigation, 'true') }}:
     - name: EnableRichCodeNavigation
       value: 'true'
+  # Retry signature validation up to three times, waiting 2 seconds between attempts.
+  # See https://learn.microsoft.com/en-us/nuget/reference/errors-and-warnings/nu3028#retry-untrusted-root-failures
+  - name: NUGET_EXPERIMENTAL_CHAIN_BUILD_RETRY_POLICY
+    value: 3,2000
   - ${{ each variable in parameters.variables }}:
     # handle name-value variable syntax
     # example:
@@ -81,7 +85,7 @@ jobs:
     - ${{ if ne(variable.name, '') }}:
       - name: ${{ variable.name }}
         value: ${{ variable.value }}
-    
+
     # handle variable groups
     - ${{ if ne(variable.group, '') }}:
       - group: ${{ variable.group }}
@@ -155,7 +159,7 @@ jobs:
   - ${{ if eq(parameters.enableMicrobuild, 'true') }}:
     - ${{ if and(eq(parameters.runAsPublic, 'false'), ne(variables['System.TeamProject'], 'public'), notin(variables['Build.Reason'], 'PullRequest')) }}:
       - task: MicroBuildCleanup@1
-        displayName: Execute Microbuild cleanup tasks  
+        displayName: Execute Microbuild cleanup tasks
         condition: and(always(), in(variables['_SignType'], 'real', 'test'), eq(variables['Agent.Os'], 'Windows_NT'))
         continueOnError: ${{ parameters.continueOnError }}
         env:
@@ -223,7 +227,7 @@ jobs:
       displayName: Publish XUnit Test Results
       inputs:
         testResultsFormat: 'xUnit'
-        testResultsFiles: '*.xml' 
+        testResultsFiles: '*.xml'
         searchFolder: '$(Build.SourcesDirectory)/artifacts/TestResults/$(_BuildConfig)'
         testRunTitle: ${{ coalesce(parameters.testRunTitle, parameters.name, '$(System.JobName)') }}-xunit
         mergeTestResults: ${{ parameters.mergeTestResults }}
@@ -234,7 +238,7 @@ jobs:
       displayName: Publish TRX Test Results
       inputs:
         testResultsFormat: 'VSTest'
-        testResultsFiles: '*.trx' 
+        testResultsFiles: '*.trx'
         searchFolder: '$(Build.SourcesDirectory)/artifacts/TestResults/$(_BuildConfig)'
         testRunTitle: ${{ coalesce(parameters.testRunTitle, parameters.name, '$(System.JobName)') }}-trx
         mergeTestResults: ${{ parameters.mergeTestResults }}