diff --git a/src/Nest/Nest.csproj b/src/Nest/Nest.csproj
index 63ffa7c9b67..d67ce8f7459 100644
--- a/src/Nest/Nest.csproj
+++ b/src/Nest/Nest.csproj
@@ -1275,6 +1275,8 @@
     <Compile Include="Search\Search\Hits\InnerHitsResult.cs" />
     <Compile Include="Search\Search\Hits\NestedIdentity.cs" />
     <Compile Include="Search\Search\InnerHits\InnerHits.cs" />
+    <Compile Include="Search\Search\Profile\AggregationBreakdown.cs" />
+    <Compile Include="Search\Search\Profile\AggregationProfile.cs" />
     <Compile Include="Search\Search\Profile\Collector.cs" />
     <Compile Include="Search\Search\Profile\Profile.cs" />
     <Compile Include="Search\Search\Profile\QueryBreakdown.cs" />
diff --git a/src/Nest/Search/Search/Profile/AggregationBreakdown.cs b/src/Nest/Search/Search/Profile/AggregationBreakdown.cs
new file mode 100644
index 00000000000..e8512cc8cbd
--- /dev/null
+++ b/src/Nest/Search/Search/Profile/AggregationBreakdown.cs
@@ -0,0 +1,32 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Nest
+{
+	public class AggregationBreakdown
+	{
+		[JsonProperty("reduce")]
+		public long Reduce { get; internal set; }
+
+		[JsonProperty("build_aggregation")]
+		public long BuildAggregation { get; internal set; }
+
+		[JsonProperty("build_aggregation_count")]
+		public long BuildAggregationCount { get; internal set; }
+
+		[JsonProperty("initialize")]
+		public long Initialize { get; internal set; }
+
+		[JsonProperty("intialize_count")]
+		public long InitializeCount { get; internal set; }
+
+		[JsonProperty("reduce_count")]
+		public long ReduceCount { get; internal set; }
+
+		[JsonProperty("collect")]
+		public long Collect { get; internal set; }
+
+		[JsonProperty("collect_count")]
+		public long CollectCount { get; internal set; }
+	}
+}
diff --git a/src/Nest/Search/Search/Profile/AggregationProfile.cs b/src/Nest/Search/Search/Profile/AggregationProfile.cs
new file mode 100644
index 00000000000..ce5094e043a
--- /dev/null
+++ b/src/Nest/Search/Search/Profile/AggregationProfile.cs
@@ -0,0 +1,38 @@
+using System.Collections.Generic;
+using Newtonsoft.Json;
+
+namespace Nest
+{
+	public class AggregationProfile
+	{
+		/// <summary>
+		/// The Elasticsearch aggregation type
+		/// </summary>
+		[JsonProperty("type")]
+		public string Type { get; internal set; }
+
+		/// <summary>
+		/// The user defined name of the aggregation
+		/// </summary>
+		[JsonProperty("description")]
+		public string Description { get; internal set; }
+
+		/// <summary>
+		/// The time this aggregation took
+		/// </summary>
+		[JsonProperty("time")]
+		public Time Time { get; internal set; }
+
+		/// <summary>
+		/// The time this aggregation took, in nanoseconds
+		/// </summary>
+		[JsonProperty("time_in_nanos")]
+		public long TimeInNanoseconds { get; internal set; }
+
+		/// <summary>
+		/// Detailed stats about how the time was spent
+		/// </summary>
+		[JsonProperty("breakdown")]
+		public AggregationBreakdown Breakdown { get; internal set; }
+	}
+}
diff --git a/src/Nest/Search/Search/Profile/Collector.cs b/src/Nest/Search/Search/Profile/Collector.cs
index 9889e3a65ee..daecc987250 100644
--- a/src/Nest/Search/Search/Profile/Collector.cs
+++ b/src/Nest/Search/Search/Profile/Collector.cs
@@ -14,7 +14,10 @@ public class Collector
 		[JsonProperty("time")]
 		public Time Time { get; internal set; }
 
-		[JsonProperty("children")]
+		[JsonProperty("time_in_nanos")]
+		public long TimeInNanoseconds { get; internal set; }
+
+	[JsonProperty("children")]
 		public IReadOnlyCollection<Collector> Children { get; internal set; } =
 			EmptyReadOnly<Collector>.Collection;
 
diff --git a/src/Nest/Search/Search/Profile/QueryProfile.cs b/src/Nest/Search/Search/Profile/QueryProfile.cs
index f0ecf5b7dd1..226fb0d038d 100644
--- a/src/Nest/Search/Search/Profile/QueryProfile.cs
+++ b/src/Nest/Search/Search/Profile/QueryProfile.cs
@@ -23,6 +23,12 @@ public class QueryProfile
 		[JsonProperty("time")]
 		public Time Time { get; internal set; }
 
+		/// <summary>
+		/// The time that this query took in nanoseconds
+		/// </summary>
+		[JsonProperty("time_in_nanos")]
+		public long TimeInNanoseconds { get; internal set; }
+
 		/// <summary>
 		/// Detailed stats about how the time was spent
 		/// </summary>
diff --git a/src/Nest/Search/Search/Profile/ShardProfile.cs b/src/Nest/Search/Search/Profile/ShardProfile.cs
index 5f1d366faaf..5771ca7410d 100644
--- a/src/Nest/Search/Search/Profile/ShardProfile.cs
+++ b/src/Nest/Search/Search/Profile/ShardProfile.cs
@@ -12,5 +12,8 @@ public class ShardProfile
 		public IReadOnlyCollection<SearchProfile> Searches { get; internal set; } =
 			EmptyReadOnly<SearchProfile>.Collection;
 
+		[JsonProperty("aggregations")]
+		public IReadOnlyCollection<AggregationProfile> Aggregations { get; internal set; } =
+			EmptyReadOnly<AggregationProfile>.Collection;
 	}
 }
diff --git a/src/Tests/Search/Search/SearchProfileApiTests.cs b/src/Tests/Search/Search/SearchProfileApiTests.cs
new file mode 100644
index 00000000000..ecad822e7a5
--- /dev/null
+++ b/src/Tests/Search/Search/SearchProfileApiTests.cs
@@ -0,0 +1,140 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Elasticsearch.Net;
+using FluentAssertions;
+using Nest;
+using Tests.Framework;
+using Tests.Framework.Integration;
+using Tests.Framework.MockData;
+
+namespace Tests.Search.Search
+{
+	public class SearchProfileApiTests : ApiIntegrationTestBase<ReadOnlyCluster, ISearchResponse<Project>, ISearchRequest,
+		SearchDescriptor<Project>, SearchRequest<Project>>
+	{
+		public SearchProfileApiTests(ReadOnlyCluster cluster, EndpointUsage usage) : base(cluster, usage)
+		{
+		}
+
+		protected override LazyResponses ClientUsage() => Calls(
+			fluent: (c, f) => c.Search(f),
+			fluentAsync: (c, f) => c.SearchAsync(f),
+			request: (c, r) => c.Search<Project>(r),
+			requestAsync: (c, r) => c.SearchAsync<Project>(r)
+		);
+
+		protected override int ExpectStatusCode => 200;
+		protected override bool ExpectIsValid => true;
+		protected override HttpMethod HttpMethod => HttpMethod.POST;
+		protected override string UrlPath => $"/project/project/_search";
+
+		protected override object ExpectJson => new
+		{
+			profile = true,
+			query = new
+			{
+				match_all = new { }
+			},
+			aggs = new
+			{
+				startDates = new
+				{
+					terms = new
+					{
+						field = "startedOn"
+					}
+				}
+			}
+		};
+
+		protected override void ExpectResponse(ISearchResponse<Project> response)
+		{
+			response.Hits.Count().Should().BeGreaterThan(0);
+			var profile = response.Profile;
+			profile.Should().NotBeNull();
+			var shardProfiles = profile.Shards;
+			shardProfiles.Should().NotBeNullOrEmpty();
+			foreach (var shardProfile in shardProfiles)
+			{
+				shardProfile.Id.Should().NotBeNullOrEmpty();
+				var searches = shardProfile.Searches;
+				searches.Should().NotBeNullOrEmpty();
+				foreach (var search in searches)
+				{
+					var queries = search.Query;
+					queries.Should().NotBeNullOrEmpty();
+					foreach (var query in queries)
+					{
+						query.Should().NotBeNull();
+						query.Type.Should().NotBeNullOrEmpty();
+						query.Description.Should().NotBeNullOrEmpty();
+						query.Time.Should().NotBeNull();
+						query.TimeInNanoseconds.Should().BeGreaterThan(0);
+						query.Breakdown.Should().NotBeNull();
+					}
+					search.RewriteTime.Should().BeGreaterThan(0);
+					var collectors = search.Collector;
+					foreach (var collector in collectors)
+					{
+						collector.Name.Should().NotBeNullOrEmpty();
+						collector.Reason.Should().NotBeNullOrEmpty();
+						collector.Time.Should().NotBeNull();
+						collector.TimeInNanoseconds.Should().BeGreaterThan(0);
+						var children = collector.Children;
+						children.Should().NotBeNull();
+						foreach (var child in children)
+						{
+							child.Should().NotBeNull();
+							child.Name.Should().NotBeNullOrEmpty();
+							child.Reason.Should().NotBeNullOrEmpty();
+							child.Time.Should().NotBeNull();
+							child.TimeInNanoseconds.Should().BeGreaterThan(0);
+							var grandchildren = child.Children;
+							grandchildren.Should().NotBeNull();
+							foreach (var grandchild in grandchildren)
+							{
+								grandchild.Name.Should().NotBeNullOrEmpty();
+								grandchild.Reason.Should().NotBeNullOrEmpty();
+								grandchild.Time.Should().NotBeNull();
+								grandchild.TimeInNanoseconds.Should().BeGreaterThan(0);
+							}
+						}
+					}
+				}
+				var aggregations = shardProfile.Aggregations;
+				aggregations.Should().NotBeNull();
+				foreach (var aggregation in aggregations)
+				{
+					aggregation.Should().NotBeNull();
+					aggregation.Type.Should().NotBeNullOrEmpty();
+					aggregation.Description.Should().NotBeNullOrEmpty();
+					aggregation.Time.Should().NotBeNull();
+					aggregation.TimeInNanoseconds.Should().BeGreaterThan(0);
+					aggregation.Breakdown.Should().NotBeNull();
+				}
+			}
+		}
+
+		protected override Func<SearchDescriptor<Project>, ISearchRequest> Fluent => s => s
+			.Profile()
+			.Query(q => q
+				.MatchAll()
+			)
+			.Aggregations(aggs => aggs
+				.Terms("startDates", t => t
+					.Field(p => p.StartedOn)
+				)
+			);
+
+		protected override SearchRequest<Project> Initializer => new SearchRequest<Project>()
+		{
+			Profile = true,
+			Query = new QueryContainer(new MatchAllQuery()),
+			Aggregations = new TermsAggregation("startDates")
+			{
+				Field = "startedOn"
+			}
+		};
+	}
+}
diff --git a/src/Tests/Tests.csproj b/src/Tests/Tests.csproj
index 7097763b35e..6e7f3510a61 100644
--- a/src/Tests/Tests.csproj
+++ b/src/Tests/Tests.csproj
@@ -722,6 +722,7 @@
     <Compile Include="Search\Scroll\Scroll\SlicedScrollSearchApiTests.cs" />
     <Compile Include="Search\Search\InvalidSearchApiTests.cs" />
     <Compile Include="Search\Search\Rescoring\RescoreUsageTests.cs" />
+    <Compile Include="Search\Search\SearchProfileApiTests.cs" />
     <Compile Include="Search\Search\SearchProfileTests.cs" />
     <Compile Include="Search\Suggesters\SuggestUrlTests.cs" />
     <Compile Include="XPack\Security\ClearCachedRealms\ClearCachedRealmsApiTests.cs" />
diff --git a/src/Tests/tests.yaml b/src/Tests/tests.yaml
index a0fe32db5de..13a6a91c3bd 100644
--- a/src/Tests/tests.yaml
+++ b/src/Tests/tests.yaml
@@ -2,7 +2,7 @@
 mode: m
 # the elasticsearch version that should be started
 # Can be a snapshot version of sonatype or "latest" to get the latest snapshot of sonatype
-elasticsearch_version: latest
+elasticsearch_version: 5.3.0-SNAPSHOT
 # cluster filter allows you to only run the integration tests of a particular cluster (cluster suffix not needed)
 # cluster_filter:
 # whether we want to forcefully reseed on the node, if you are starting the tests with a node already running