you can instal it via git and then copy systemd script:
Step 0. Install git
yum install git
Step 1. Clone repository
git clone git://github.com/kr/beanstalkd.git
cd beanstalkd
make
cp beanstalkd /usr/bin/beanstalkd
mkdir /var/lib/beanstalkd
Step 2. Make startup script
Create file /etc/systemd/system/beanstalkd.service with this content:
[Unit]
Description=Beanstalkd is a simple, fast work queue
[Service]
User=root
ExecStart=/usr/bin/beanstalkd -b /var/lib/beanstalkd
[Install]
WantedBy=multi-user.target
Step 3. Finally, run
systemctl enable beanstalkd and systemctl start beanstalkd
Step 4. Check
ps ax | grep beanstalkd
https://stackoverflow.com/questions/26786368/beanstalkd-for-centos-7