These are list of softwares which i would be working in the near future.
http://kafka.apache.org/ A high-throughput distributed messaging system.
https://www.docker.com/ Build, ship and run your Docker container-based applications inside your firewall.
http://www.infoworld.com/article/2609482/data-center/data-center-review-puppet-vs-chef-vs-ansible-vs-salt.html Puppet vs. Chef vs. Ansible vs. Salt
http://cassandra.apache.org/ The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance
https://jujucharms.com/ Open source. Solution-driven. Model, build and scale your environments on any cloud.
https://www.kali.org/ Penetration Testing Redefined with the Kali Linux Distribution
Chaos Monkey frequently causes failures on our servers, forces our services to be built in a way that is more resilient.