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Associate Professor; Director, Master of Science in Engineering Management, Master of Engineering: Information Engineering Management concentration
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Hoehn 370
(205) 934-8480

Research and Teaching Interests: Entrepreneurship, innovation, professional development for engineers

Office Hours: By appointment


  • B.S., Auburn University, Electrical Engineering
  • M.S., Auburn University at Montgomery, Business Administration
  • M.S., University of Alabama at Birmingham, Electrical Engineering
  • Ph.D., University of Alabama, Electrical Engineering
  • Professional Engineer License #19314, State of Alabama

My focus is on helping engineers become successful in industry and in their own entrepreneurial ventures. I have assisted many engineers (and non-engineers) start successful companies – many as spin-offs of the Information Engineering and Management program. I spend a lot of my time helping individuals and companies find strategic alignment – or put more simply, find how to focus on what they do best so they can enjoy their work and while prosper doing that work.

  • Research Interests

    Today I do not have a specific research interest. As an engineer and being industry focused, I just like to solve problems. This sometimes includes working with technology, but sometimes the problems are business or people problems. Either way, I like seeing challenges be overcome.

    My technical interests have been in embedded systems, position sensing through vision and motion tracking, artificial intelligence and machine learning, wireless, and telecommunications.

  • Recent Courses
    • Computer Methods in Engineering
    • Professional Development for Engineers
    • Information Engineering and Management Design Project
    • Technology and Innovation
    • Technical Entrepreneurship
  • Select Publications
    • Company of One. Podcast, iTunes
    • Smartphones Need Two-Factor. JP Jaret A. Langston, Dale W. Callahan, eForensics Magazine - File System Forensics, Sept. 2019
    • How is my Event Rated? Rating an Event Using Social Media Data. S Silwal, D Callahan, International Journal of Multidisciplinary Sciences and Engineering 6 (3), 7-16, 1, 2015
    • Building a Social Media rating model. S Silwal, DW Callahan, IEEE SOUTHEASTCON 2014.
    • Using Social Media Data as Research Data. S Silwal, D Callahan, International Journal for Innovation Education and Research 1 (3), 49-55, 2013.
    • Resumes are Worthless: How to Find the Work You Love and Succeed, 2011.
  • Academic Distinctions and Professional Societies
    • Board of Directors, OneHundredFold, Inc.
    • IEEE, Senior Member
    • IEEE Joseph M. Biedenbach Outstanding Engineering Educator Award, 2015
    • Graduate Dean's Award for Excellence in Mentorship, 2013
    • UAB 40 Engineers Making a Difference, 2011
    • TechBirmingham Executive Council, 2009-2013
    • AmericanIP, CEO, 2005-2006