Vishnu Nair is a Linux System Administrator at Namshi (a Rocket Internet Venture). His Job responsibilities include assisting the development team in infrastructure questions, problems and deployments.
My Weapon of choice:
Configuration Management:- Saltstack, Puppet and Chef
Deployment tools:- Capistrano and Fabric
Caching Technologies:- Varnish (web application accelerator) , Redis & Memcached.
Database:- Mysql, Mongo db & Couchbase db.
Continuous Integration: Jenkins and Travis CI
Version Control Systems: Git & SVN
Cloud Providers: AWS & Rackspace.
CDN:- Aws cloudfront, Rackspace Cloud files, Akamai & CDNetworks.
Monitoring: Sensu, Newrelic, Nagios, Graylog2 & Icinga.
Other tools which I used are Docker, Deis, Sysdig, Serverspec, HAProxy, Supervisor, Virtualenv and so on.