diff --git a/tools/jenkins/build_artifacts.sh b/tools/jenkins/build_artifacts.sh
index d5912010e31d8d4ed3b0d56463a81e48662c79e6..9af553ae48d89bd9423df4aa4ef7376ba5b68511 100755
--- a/tools/jenkins/build_artifacts.sh
+++ b/tools/jenkins/build_artifacts.sh
@@ -36,4 +36,7 @@
 # NOTE: No empty lines should appear in this file before igncr is set!
 set -ex -o igncr || set -ex
 
-python tools/run_tests/build_artifacts.py $@
+curr_platform="$platform"
+unset platform  # variable named 'platform' breaks the windows build
+
+python tools/run_tests/task_runner.py -f artifact $language $curr_platform $architecture
diff --git a/tools/jenkins/build_packages.sh b/tools/jenkins/build_packages.sh
new file mode 100644
index 0000000000000000000000000000000000000000..d795e355c768bd90f561fbfa221c0f4c2941a538
--- /dev/null
+++ b/tools/jenkins/build_packages.sh
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# This script is invoked by Jenkins and triggers build of artifacts.
+#
+# To prevent cygwin bash complaining about empty lines ending with \r
+# we set the igncr option. The option doesn't exist on Linux, so we fallback
+# to just 'set -ex' there.
+# NOTE: No empty lines should appear in this file before igncr is set!
+set -ex -o igncr || set -ex
+
+curr_platform="$platform"
+unset platform  # variable named 'platform' breaks the windows build
+
+python tools/run_tests/task_runner.py -f package $curr_platform
diff --git a/tools/run_tests/build_artifacts.py b/tools/run_tests/artifact_targets.py
old mode 100755
new mode 100644
similarity index 56%
rename from tools/run_tests/build_artifacts.py
rename to tools/run_tests/artifact_targets.py
index 0337f1b3d7734f0efae7bd6ec0896e4d19522d3b..a34fa8e4faad9a30ff46ce3f4bf58945fbca794b
--- a/tools/run_tests/build_artifacts.py
+++ b/tools/run_tests/artifact_targets.py
@@ -28,28 +28,9 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-"""Builds gRPC distribution artifacts."""
+"""Definition of targets to build artifacts."""
 
-import argparse
-import atexit
-import dockerjob
-import itertools
 import jobset
-import json
-import multiprocessing
-import os
-import re
-import subprocess
-import sys
-import time
-import uuid
-
-# Docker doesn't clean up after itself, so we do it on exit.
-if jobset.platform_string() == 'linux':
-  atexit.register(lambda: subprocess.call(['stty', 'echo']))
-
-ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
-os.chdir(ROOT)
 
 
 def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
@@ -58,7 +39,6 @@ def create_docker_jobspec(name, dockerfile_dir, shell_command, environ={},
   environ = environ.copy()
   environ['RUN_COMMAND'] = shell_command
 
-  #docker_args = ['-v', '%s/artifacts:/var/local/jenkins/grpc/artifacts' % ROOT]
   docker_args=[]
   for k,v in environ.iteritems():
     docker_args += ['-e', '%s=%s' % (k, v)]
@@ -107,7 +87,7 @@ class CSharpExtArtifact:
     self.name = 'csharp_ext_%s_%s' % (platform, arch)
     self.platform = platform
     self.arch = arch
-    self.labels = ['csharp', platform, arch]
+    self.labels = ['artifact', 'csharp', platform, arch]
 
   def pre_build_jobspecs(self):
     if self.platform == 'windows':
@@ -147,92 +127,11 @@ class CSharpExtArtifact:
     return self.name
 
 
-_ARTIFACTS = [
-    CSharpExtArtifact('linux', 'x86'),
-    CSharpExtArtifact('linux', 'x64'),
-    CSharpExtArtifact('macos', 'x86'),
-    CSharpExtArtifact('macos', 'x64'),
-    CSharpExtArtifact('windows', 'x86'),
-    CSharpExtArtifact('windows', 'x64')
-]
-
-
-def _create_build_map():
-  """Maps artifact names and labels to list of artifacts to be built."""
-  artifact_build_map = dict([(artifact.name, [artifact])
-                             for artifact in _ARTIFACTS])
-  if len(_ARTIFACTS) > len(artifact_build_map.keys()):
-    raise Exception('Artifact names need to be unique')
-
-  label_build_map = {}
-  label_build_map['all'] = [a for a in _ARTIFACTS]  # to build all artifacts
-  for artifact in _ARTIFACTS:
-    for label in artifact.labels:
-      if label in label_build_map:
-        label_build_map[label].append(artifact)
-      else:
-        label_build_map[label] = [artifact]
-
-  if set(artifact_build_map.keys()).intersection(label_build_map.keys()):
-    raise Exception('Artifact names need to be distinct from label names')
-  return dict( artifact_build_map.items() + label_build_map.items())
-
-
-_BUILD_MAP = _create_build_map()
-
-argp = argparse.ArgumentParser(description='Builds distribution artifacts.')
-argp.add_argument('-b', '--build',
-                  choices=sorted(_BUILD_MAP.keys()),
-                  nargs='+',
-                  default=['all'],
-                  help='Artifact name or artifact label to build.')
-argp.add_argument('-f', '--filter',
-                  choices=sorted(_BUILD_MAP.keys()),
-                  nargs='+',
-                  default=[],
-                  help='Filter artifacts to build with AND semantics.')
-argp.add_argument('-j', '--jobs', default=multiprocessing.cpu_count(), type=int)
-argp.add_argument('-t', '--travis',
-                  default=False,
-                  action='store_const',
-                  const=True)
-
-args = argp.parse_args()
-
-# Figure out which artifacts to build
-artifacts = []
-for label in args.build:
-  artifacts += _BUILD_MAP[label]
-
-# Among target selected by -b, filter out those that don't match the filter
-artifacts = [a for a in artifacts if all(f in a.labels for f in args.filter)]
-artifacts = sorted(set(artifacts))
-
-# Execute pre-build phase
-prebuild_jobs = []
-for artifact in artifacts:
-  prebuild_jobs += artifact.pre_build_jobspecs()
-if prebuild_jobs:
-  num_failures, _ = jobset.run(
-    prebuild_jobs, newline_on_success=True, maxjobs=args.jobs)
-  if num_failures != 0:
-    jobset.message('FAILED', 'Pre-build phase failed.', do_newline=True)
-    sys.exit(1)
-
-build_jobs = []
-for artifact in artifacts:
-  build_jobs.append(artifact.build_jobspec())
-if not build_jobs:
-  print 'Nothing to build.'
-  sys.exit(1)
-
-jobset.message('START', 'Building artifacts.', do_newline=True)
-num_failures, _ = jobset.run(
-    build_jobs, newline_on_success=True, maxjobs=args.jobs)
-if num_failures == 0:
-  jobset.message('SUCCESS', 'All artifacts built successfully.',
-                 do_newline=True)
-else:
-  jobset.message('FAILED', 'Failed to build artifacts.',
-                 do_newline=True)
-  sys.exit(1)
+def targets():
+  """Gets list of supported targets"""
+  return [CSharpExtArtifact('linux', 'x86'),
+          CSharpExtArtifact('linux', 'x64'),
+          CSharpExtArtifact('macos', 'x86'),
+          CSharpExtArtifact('macos', 'x64'),
+          CSharpExtArtifact('windows', 'x86'),
+          CSharpExtArtifact('windows', 'x64')]
diff --git a/tools/run_tests/package_targets.py b/tools/run_tests/package_targets.py
new file mode 100644
index 0000000000000000000000000000000000000000..839991e270ea6b8956f5402c1a5c2baae00c1f5d
--- /dev/null
+++ b/tools/run_tests/package_targets.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Definition of targets to build distribution packages."""
+
+import jobset
+
+
+def create_jobspec(name, cmdline, environ=None, cwd=None, shell=False,
+                   flake_retries=0, timeout_retries=0):
+  """Creates jobspec."""
+  jobspec = jobset.JobSpec(
+          cmdline=cmdline,
+          environ=environ,
+          cwd=cwd,
+          shortname='build_package.%s' % (name),
+          timeout_seconds=10*60,
+          flake_retries=flake_retries,
+          timeout_retries=timeout_retries,
+          shell=shell)
+  return jobspec
+
+
+class CSharpNugetTarget:
+  """Builds C# nuget packages."""
+
+  def __init__(self):
+    self.name = 'csharp_nuget'
+    self.labels = ['package', 'csharp', 'windows']
+
+  def pre_build_jobspecs(self):
+    return []
+
+  def build_jobspec(self):
+    return create_jobspec(self.name,
+                          ['build_packages.bat'],
+                          cwd='src\\csharp',
+                          shell=True)
+
+  def __str__(self):
+    return self.name
+
+
+def targets():
+  """Gets list of supported targets"""
+  return [CSharpNugetTarget()]
diff --git a/tools/run_tests/task_runner.py b/tools/run_tests/task_runner.py
new file mode 100644
index 0000000000000000000000000000000000000000..39b15cc8b21fffde46b2b79a4b0da55988469bf7
--- /dev/null
+++ b/tools/run_tests/task_runner.py
@@ -0,0 +1,124 @@
+#!/usr/bin/env python
+# Copyright 2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Runs selected gRPC test/build tasks."""
+
+import argparse
+import atexit
+import jobset
+import multiprocessing
+import sys
+
+import artifact_targets
+import package_targets
+
+_TARGETS = []
+_TARGETS += artifact_targets.targets()
+_TARGETS += package_targets.targets()
+
+def _create_build_map():
+  """Maps task names and labels to list of tasks to be built."""
+  target_build_map = dict([(target.name, [target])
+                           for target in _TARGETS])
+  if len(_TARGETS) > len(target_build_map.keys()):
+    raise Exception('Target names need to be unique')
+
+  label_build_map = {}
+  label_build_map['all'] = [t for t in _TARGETS]  # to build all targets
+  for target in _TARGETS:
+    for label in target.labels:
+      if label in label_build_map:
+        label_build_map[label].append(target)
+      else:
+        label_build_map[label] = [target]
+
+  if set(target_build_map.keys()).intersection(label_build_map.keys()):
+    raise Exception('Target names need to be distinct from label names')
+  return dict( target_build_map.items() + label_build_map.items())
+
+
+_BUILD_MAP = _create_build_map()
+
+argp = argparse.ArgumentParser(description='Runs build/test targets.')
+argp.add_argument('-b', '--build',
+                  choices=sorted(_BUILD_MAP.keys()),
+                  nargs='+',
+                  default=['all'],
+                  help='Target name or target label to build.')
+argp.add_argument('-f', '--filter',
+                  choices=sorted(_BUILD_MAP.keys()),
+                  nargs='+',
+                  default=[],
+                  help='Filter targets to build with AND semantics.')
+argp.add_argument('-j', '--jobs', default=multiprocessing.cpu_count(), type=int)
+argp.add_argument('-t', '--travis',
+                  default=False,
+                  action='store_const',
+                  const=True)
+
+args = argp.parse_args()
+
+# Figure out which targets to build
+targets = []
+for label in args.build:
+  targets += _BUILD_MAP[label]
+
+# Among targets selected by -b, filter out those that don't match the filter
+targets = [t for t in targets if all(f in t.labels for f in args.filter)]
+targets = sorted(set(targets))
+
+# Execute pre-build phase
+prebuild_jobs = []
+for target in targets:
+  prebuild_jobs += target.pre_build_jobspecs()
+if prebuild_jobs:
+  num_failures, _ = jobset.run(
+    prebuild_jobs, newline_on_success=True, maxjobs=args.jobs)
+  if num_failures != 0:
+    jobset.message('FAILED', 'Pre-build phase failed.', do_newline=True)
+    sys.exit(1)
+
+build_jobs = []
+for target in targets:
+  build_jobs.append(target.build_jobspec())
+if not build_jobs:
+  print 'Nothing to build.'
+  sys.exit(1)
+
+jobset.message('START', 'Building targets.', do_newline=True)
+num_failures, _ = jobset.run(
+    build_jobs, newline_on_success=True, maxjobs=args.jobs)
+if num_failures == 0:
+  jobset.message('SUCCESS', 'All targets built successfully.',
+                 do_newline=True)
+else:
+  jobset.message('FAILED', 'Failed to build targets.',
+                 do_newline=True)
+  sys.exit(1)