linux¹¹ supervisor¹ typescript¹ memcached¹ webdriver⁴ ant³ python⁴¹ mongodb² rails⁷ maven¹ android¹ selenium⁵ react¹ logstash³ ansible¹ yaml¹ mysql⁶ poi² jquery¹ celery¹ virtualization¹ windows⁴ ubuntu¹ regular expression¹ sqlite¹ networking⁵ spring¹ aspect oriented programming² multithreading³ jenkins¹ automation¹⁰ ssl⁵ testng⁶ git¹ socket.io² robotframework¹ gunicorn¹ csv¹ ruby²⁰ service assurance¹ concurrent¹ redis³ service monitoring¹ database⁵ log4j² devops⁵ security¹ npm¹ json³ xml¹ javascript¹⁹ snmp² properties¹ nagios² java⁴⁵ elasticsearch² vim¹ sql³ nginx³ html⁵ bash² nodejs¹³ kibana¹ css⁵ docker¹ terraform¹ nosql¹ mac³ flask² xpath¹ algorithm⁷ ini¹ multiprocessing¹