John Callahan

Director of Infrastructure Services

Responsible for the design and operation of the University's data and voice networks, Internet access, network accounts, e-mail servers, file and print servers, remote access servers, and numerous other systems, software packages and databases; member of WITS management team.


  • Willamette University - BS, Computer Science

Areas of Expertise

  • Web technologies: JavaScript, PHP, CSS, AJAX, XML, REST
  • Cisco network design and troubleshooting
  • Cisco IP Telephony
  • Server applications: Apache, Postfix, Postgresql, Nagios, cfengine