diff --git a/tools/jenkins/grpc_jenkins_slave/Dockerfile b/tools/jenkins/grpc_jenkins_slave/Dockerfile
index a98ad6f5522..c3722457dbe 100644
--- a/tools/jenkins/grpc_jenkins_slave/Dockerfile
+++ b/tools/jenkins/grpc_jenkins_slave/Dockerfile
@@ -79,5 +79,41 @@ ENV NUGET mono /var/local/NuGet.exe
 
 # TODO(jtattermusch): add dependencies for other languages
 
+##################
+# Node dependencies
+
+# Install nvm
+RUN curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
+RUN /bin/bash -l -c "nvm install 0.12"
+
+##################
+# Ruby dependencies
+
+# Install rvm
+RUN gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
+RUN \curl -sSL https://get.rvm.io | bash -s stable
+
+# Install Ruby 2.1
+RUN /bin/bash -l -c "rvm install ruby-2.1"
+RUN /bin/bash -l -c "rvm use --default ruby-2.1"
+RUN /bin/bash -l -c "echo 'gem: --no-ri --no-rdoc' > ~/.gemrc"
+RUN /bin/bash -l -c "echo 'export PATH=/usr/local/rvm/bin:$PATH' >> ~/.bashrc"
+RUN /bin/bash -l -c "echo 'rvm --default use ruby-2.1' >> ~/.bashrc"
+RUN /bin/bash -l -c "gem install bundler --no-ri --no-rdoc"
+
+##################
+# Python dependencies
+
+# Install dependencies
+
+RUN apt-get update && apt-get install -y \
+    python-all-dev \
+    python3-all-dev \
+    python-pip \
+    python-virtualenv
+
+# Install Python packages from PyPI
+RUN pip install futures==2.2.0 enum34==1.0.4 protobuf==3.0.0a2
+
 # Define the default command.
 CMD ["bash"]
diff --git a/tools/jenkins/run_jenkins.sh b/tools/jenkins/run_jenkins.sh
index 8afaa91ea7f..a95819af601 100755
--- a/tools/jenkins/run_jenkins.sh
+++ b/tools/jenkins/run_jenkins.sh
@@ -42,9 +42,11 @@ then
   echo "building $language on Linux"
 
   # Run tests inside docker
-  docker run grpc/grpc_jenkins_slave bash -c "git clone --recursive $GIT_URL /var/local/git/grpc \
+  docker run grpc/grpc_jenkins_slave bash -c -l "git clone --recursive $GIT_URL /var/local/git/grpc \
     && cd /var/local/git/grpc && git checkout -f $GIT_COMMIT \
     && git submodule update \
+    && nvm use 0.12 \
+    && rvm use ruby-2.1 \
     && tools/run_tests/run_tests.py -t -l $language"
 elif [ "$platform" == "windows" ]
 then
diff --git a/tools/run_tests/build_node.sh b/tools/run_tests/build_node.sh
index c85ecf1b259..95ffb94c6ea 100755
--- a/tools/run_tests/build_node.sh
+++ b/tools/run_tests/build_node.sh
@@ -41,4 +41,4 @@ export LDFLAGS=-L`pwd`/libs/$CONFIG
 
 cd src/node
 
-npm install
+npm install --unsafe-perm