diff --git a/src/CommonLibrariesForNET/CommonLibrariesForNET.csproj b/src/CommonLibrariesForNET/CommonLibrariesForNET.csproj
index ba151d83..bbf37867 100644
--- a/src/CommonLibrariesForNET/CommonLibrariesForNET.csproj
+++ b/src/CommonLibrariesForNET/CommonLibrariesForNET.csproj
@@ -75,6 +75,7 @@
     <Compile Include="Models\Xml\JobInfoState.cs" />
     <Compile Include="Models\Xml\SObject.cs" />
     <Compile Include="Models\Xml\SObjectList.cs" />
+    <Compile Include="Models\Xml\UpsertJobInfo.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Models\Json\ResponseTypes.cs" />
     <Compile Include="Serializer\CreateableContractResolver.cs" />
@@ -105,4 +106,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/CommonLibrariesForNET/Models/Xml/UpsertJobInfo.cs b/src/CommonLibrariesForNET/Models/Xml/UpsertJobInfo.cs
new file mode 100644
index 00000000..09fe5444
--- /dev/null
+++ b/src/CommonLibrariesForNET/Models/Xml/UpsertJobInfo.cs
@@ -0,0 +1,23 @@
+using System.Xml.Serialization;
+
+namespace Salesforce.Common.Models.Xml
+{
+    [XmlRoot(Namespace = "http://www.force.com/2009/06/asyncapi/dataload",
+        ElementName = "jobInfo",
+        IsNullable = false)]
+    public class UpsertJobInfo
+    {
+        [XmlElement(ElementName = "operation")]
+        public string Operation { get; set; }
+
+        [XmlElement(ElementName = "object")]
+        public string Object { get; set; }
+
+        [XmlElement(ElementName = "externalIdFieldName")]
+        public string ExternalField { get; set; }
+
+        [XmlElement(ElementName = "contentType")]
+        public string ContentType { get; set; }
+
+    }
+}
diff --git a/src/ForceToolkitForNET/BulkForceClient.cs b/src/ForceToolkitForNET/BulkForceClient.cs
new file mode 100644
index 00000000..9633113e
--- /dev/null
+++ b/src/ForceToolkitForNET/BulkForceClient.cs
@@ -0,0 +1,104 @@
+using Salesforce.Common.Models.Xml;
+using Salesforce.Force;
+using System;
+using System.Collections.Generic;
+using System.Net.Http;
+using System.Threading.Tasks;
+
+namespace Salesforce.Force
+{
+    /// <summary>
+    /// Extends ForceClient for creating bulk upsert jobs using new UpsertJobInfo.
+    /// 
+    /// For a complete list of possible JobInfo fields, see https://developer.salesforce.com/docs/atlas.en-us.api_asynch.meta/api_asynch/asynch_api_reference_jobinfo.htm
+    /// </summary>
+    /// <remarks>
+    /// This class requires the following properties in ForceClient to be minimally exposed as protected:
+    /// - _xmlHttpClient
+    /// - _jsonHttpClient
+    /// </remarks>
+    public class BulkForceClient : ForceClient, IDisposable, IBulkForceClient
+    {
+        public BulkForceClient(string instanceUrl, string accessToken, string apiVersion)
+            : this(instanceUrl, accessToken, apiVersion, new HttpClient(), new HttpClient())
+        {
+        }
+
+        public BulkForceClient(string instanceUrl, string accessToken, string apiVersion, HttpClient httpClientForJson, HttpClient httpClientForXml)
+            : base(instanceUrl, accessToken, apiVersion, httpClientForJson, httpClientForXml)
+        {
+        }
+
+        public async Task<JobInfoResult> CreateUpsertJobAsync(string objectName, string externalField, BulkConstants.OperationType operationType)
+        {
+            if (string.IsNullOrEmpty(objectName)) throw new ArgumentNullException("objectName");
+
+            var jobInfo = new UpsertJobInfo
+            {
+                ContentType = "XML",
+                Object = objectName,
+                ExternalField = externalField,
+                Operation = operationType.Value()
+            };
+
+            return await _xmlHttpClient.HttpPostAsync<JobInfoResult>(jobInfo, "/services/async/{0}/job");
+        }
+
+        public async Task<List<BatchInfoResult>> RunUpsertJobAsync<T>(string objectName, string externalFieldName, BulkConstants.OperationType operationType,
+            IEnumerable<ISObjectList<T>> recordsLists)
+        {
+            if (recordsLists == null) throw new ArgumentNullException("recordsLists");
+
+            var jobInfoResult = await CreateUpsertJobAsync(objectName, externalFieldName, operationType);
+            var batchResults = new List<BatchInfoResult>();
+            foreach (var recordList in recordsLists)
+            {
+                batchResults.Add(await CreateJobBatchAsync(jobInfoResult, recordList));
+            }
+            await CloseJobAsync(jobInfoResult);
+            return batchResults;
+        }
+
+        public async Task<List<BatchResultList>> RunUpsertJobAndPollAsync<T>(string objectName, string externalFieldName, BulkConstants.OperationType operationType,
+            IEnumerable<ISObjectList<T>> recordsLists)
+        {
+            const float pollingStart = 1000;
+            const float pollingIncrease = 2.0f;
+
+            var batchInfoResults = await RunUpsertJobAsync(objectName, externalFieldName, operationType, recordsLists);
+
+            var currentPoll = pollingStart;
+            var finishedBatchInfoResults = new List<BatchInfoResult>();
+            while (batchInfoResults.Count > 0)
+            {
+                var removeList = new List<BatchInfoResult>();
+                foreach (var batchInfoResult in batchInfoResults)
+                {
+                    var batchInfoResultNew = await PollBatchAsync(batchInfoResult);
+                    if (batchInfoResultNew.State.Equals(BulkConstants.BatchState.Completed.Value()) ||
+                        batchInfoResultNew.State.Equals(BulkConstants.BatchState.Failed.Value()) ||
+                        batchInfoResultNew.State.Equals(BulkConstants.BatchState.NotProcessed.Value()))
+                    {
+                        finishedBatchInfoResults.Add(batchInfoResultNew);
+                        removeList.Add(batchInfoResult);
+                    }
+                }
+                foreach (var removeItem in removeList)
+                {
+                    batchInfoResults.Remove(removeItem);
+                }
+
+                await Task.Delay((int)currentPoll);
+                currentPoll *= pollingIncrease;
+            }
+
+
+            var batchResults = new List<BatchResultList>();
+            foreach (var batchInfoResultComplete in finishedBatchInfoResults)
+            {
+                batchResults.Add(await GetBatchResultAsync(batchInfoResultComplete));
+            }
+            return batchResults;
+        }
+    }
+}
diff --git a/src/ForceToolkitForNET/ForceClient.cs b/src/ForceToolkitForNET/ForceClient.cs
index dd7149b1..511f271a 100644
--- a/src/ForceToolkitForNET/ForceClient.cs
+++ b/src/ForceToolkitForNET/ForceClient.cs
@@ -13,8 +13,8 @@ namespace Salesforce.Force
 {
     public class ForceClient : IForceClient, IDisposable
     {
-        private readonly XmlHttpClient _xmlHttpClient;
-        private readonly JsonHttpClient _jsonHttpClient;
+        protected readonly XmlHttpClient _xmlHttpClient;
+        protected readonly JsonHttpClient _jsonHttpClient;
 
         public ForceClient(string instanceUrl, string accessToken, string apiVersion)
             : this(instanceUrl, accessToken, apiVersion, new HttpClient(), new HttpClient())
diff --git a/src/ForceToolkitForNET/ForceToolkitForNET.csproj b/src/ForceToolkitForNET/ForceToolkitForNET.csproj
index 9592b245..6cae4f4b 100644
--- a/src/ForceToolkitForNET/ForceToolkitForNET.csproj
+++ b/src/ForceToolkitForNET/ForceToolkitForNET.csproj
@@ -49,6 +49,8 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="BulkConstants.cs" />
+    <Compile Include="BulkForceClient.cs" />
+    <Compile Include="IBulkForceClient.cs" />
     <Compile Include="IForceClient.cs" />
     <Compile Include="ForceClient.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
diff --git a/src/ForceToolkitForNET/IBulkForceClient.cs b/src/ForceToolkitForNET/IBulkForceClient.cs
new file mode 100644
index 00000000..9e6f571d
--- /dev/null
+++ b/src/ForceToolkitForNET/IBulkForceClient.cs
@@ -0,0 +1,14 @@
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using Salesforce.Common.Models.Xml;
+using Salesforce.Force;
+
+namespace Salesforce.Force
+{
+    public interface IBulkForceClient : IForceClient
+    {
+        Task<JobInfoResult> CreateUpsertJobAsync(string objectName, string externalField, BulkConstants.OperationType operationType);
+        Task<List<BatchResultList>> RunUpsertJobAndPollAsync<T>(string objectName, string externalFieldName, BulkConstants.OperationType operationType, IEnumerable<ISObjectList<T>> recordsLists);
+        Task<List<BatchInfoResult>> RunUpsertJobAsync<T>(string objectName, string externalFieldName, BulkConstants.OperationType operationType, IEnumerable<ISObjectList<T>> recordsLists);
+    }
+}