--- a/mobile/android/base/java/org/mozilla/gecko/telemetry/core/TelemetryCorePingBuilder.java
+++ b/mobile/android/base/java/org/mozilla/gecko/telemetry/core/TelemetryCorePingBuilder.java
@@ -2,28 +2,38 @@
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
 
 package org.mozilla.gecko.telemetry.core;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.os.Build;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
+import android.support.annotation.WorkerThread;
+import android.text.TextUtils;
 
 import org.mozilla.gecko.AppConstants;
+import org.mozilla.gecko.GeckoProfile;
+import org.mozilla.gecko.GeckoSharedPrefs;
 import org.mozilla.gecko.Locales;
+import org.mozilla.gecko.distribution.DistributionStoreCallback;
+import org.mozilla.gecko.search.SearchEngine;
+import org.mozilla.gecko.telemetry.TelemetryConstants;
 import org.mozilla.gecko.telemetry.TelemetryPing;
 import org.mozilla.gecko.telemetry.TelemetryPingBuilder;
 import org.mozilla.gecko.util.Experiments;
 import org.mozilla.gecko.util.StringUtils;
 
+import java.io.IOException;
 import java.util.Locale;
+import java.util.concurrent.TimeUnit;
 
 /**
  * Builds a {@link TelemetryPing} representing a core ping.
  *
  * See https://gecko.readthedocs.org/en/latest/toolkit/components/telemetry/telemetry/core-ping.html
  * for details on the core ping.
  */
 public class TelemetryCorePingBuilder extends TelemetryPingBuilder {
@@ -111,30 +121,64 @@ public class TelemetryCorePingBuilder ex
         if (distributionID == null) {
             throw new IllegalArgumentException("Expected non-null distribution ID");
         }
         payload.put(DISTRIBUTION_ID, distributionID);
         return this;
     }
 
     /**
-     * @param date a positive date value, or null if there is an error.
+     * @param date The profile creation date in days to the unix epoch (not millis!), or null if there is an error.
      */
     public TelemetryCorePingBuilder setProfileCreationDate(@Nullable final Long date) {
         if (date != null && date < 0) {
             throw new IllegalArgumentException("Expect positive date value. Received: " + date);
         }
         payload.put(PROFILE_CREATION_DATE, date);
         return this;
     }
 
-    // TODO (mcomella): We can potentially build two pings with the same seq no if we leave seq as an argument.
     /**
      * @param seq a positive sequence number.
      */
     public TelemetryCorePingBuilder setSequenceNumber(final int seq) {
         if (seq < 0) {
             throw new IllegalArgumentException("Expected positive sequence number. Recived: " + seq);
         }
         payload.put(SEQ, seq);
         return this;
     }
+
+    public static String getServer(final SharedPreferences sharedPrefs) {
+        // TODO (bug 1241685): Sync this preference with the gecko preference.
+        return sharedPrefs.getString(TelemetryConstants.PREF_SERVER_URL, TelemetryConstants.DEFAULT_SERVER_URL);
+    }
+
+    @WorkerThread // synchronous shared prefs write.
+    public static int getAndIncrementSequenceNumberSync(final SharedPreferences sharedPrefsForProfile) {
+        final int seq = sharedPrefsForProfile.getInt(TelemetryConstants.PREF_SEQ_COUNT, 1);
+
+        // We store synchronously before constructing  to ensure this sequence number will not be re-used.
+        sharedPrefsForProfile.edit().putInt(TelemetryConstants.PREF_SEQ_COUNT, seq + 1).commit();
+        return seq;
+    }
+
+    /**
+     * @return the profile creation date in the format expected by
+     *         {@link TelemetryCorePingBuilder#setProfileCreationDate(Long)}.
+     */
+    @WorkerThread
+    public static Long getProfileCreationDate(final Context context, final GeckoProfile profile) {
+        final long profileMillis = profile.getAndPersistProfileCreationDate(context);
+        if (profileMillis < 0) {
+            return null;
+        }
+        return (long) Math.floor((double) profileMillis / TimeUnit.DAYS.toMillis(1));
+    }
+
+    /**
+     * @return the search engine identifier in the format expected by the core ping.
+     */
+    public static String getEngineIdentifier(final SearchEngine searchEngine) {
+        final String identifier = searchEngine.getIdentifier();
+        return TextUtils.isEmpty(identifier) ? null : identifier;
+    }
 }