xpath¹ yaml¹ spring¹ bash² nosql¹ security¹ javascript¹⁷ flask² maven¹ robotframework¹ csv¹ snmp² ubuntu¹ virtualization¹ json³ aspect oriented programming² ansible¹ nodejs¹¹ ini¹ html⁵ celery¹ typescript⁰ supervisor¹ xml¹ windows⁴ terraform¹ linux¹¹ regular expression¹ logstash³ rails⁷ docker¹ ruby²⁰ react¹ ant³ service assurance¹ networking⁵ gunicorn¹ elasticsearch² concurrent¹ python³⁹ poi² nagios² properties¹ java⁴⁵ ssl⁵ devops⁵ jenkins¹ webdriver⁴ socket.io² android¹ redis² nginx³ kibana¹ multiprocessing¹ mac³ multithreading³ vim¹ mongodb² service monitoring¹ mysql⁶ algorithm⁷ memcached¹ git¹ sqlite¹ database⁵ testng⁶ log4j² automation¹⁰ jquery¹ selenium⁵ css⁵ npm¹ sql³