At Purdue, the Doctor of Engineering (DEng) program offers an online option with the same academic rigor, quality, and career-enhancing value as our renowned West Lafayette campus. Both programs offer a valuable path to achieving advanced expertise and making impactful contributions in engineering.

Choosing between a DEng and a Ph.D. ultimately depends on your career goals and your current location and employment situation. If you’re looking to deepen practical knowledge while advancing within industry roles and cannot relocate to West Lafayette for a residential PhD, a DEng might be ideal. If you aim to contribute new research and potentially teach at the university level, a Ph.D. would better align with those ambitions.

To help you explore your options, we've provided a comparison below. Note that there may always be exceptions to these more typical situations.

  Doctor of Engineering (DEng) Doctor of Philosophy (PhD)
Guiding Philosophy Engineering practice and application Engineering theory and scholarship
Typical Student Mid-career Early- to mid-career
Student Goal Engineering leadership role in industry or public sector Academic or industrial research career
Coursework Non-residential, online; generally completed part-time Residential, on-campus; full-time
Academic Home College-wide Department-based
Funding Employer or personal, federal financial aid Fellowships, Grants, Teaching Assistantships, etc.
Minimum Qualifications Needed Master's degree (strongly preferred) and minimum 5 years related professional experience. Further requirements can be found here. Bachelor’s degree and GRE (may be optional in some programs). More information, by Department, is available here.
Research Product Dissertation, which can take many forms and may be a portfolio of work as agreed upon with the dissertation committee. Generation of new knowledge for the field culminating in a dissertation.
Research Process Required industry research mentor/partner—often a current employer—in addition to a Purdue University Faculty Dissertation Chair and Committee. Faculty directed and on-campus research with Purdue University Faculty Chair(s) and advisor(s).

Purdue University leads the world in engineering research, innovation, and education, and our online graduate programs uphold that standard of excellence. U.S. News & World Report ranks Purdue’s online master’s programs No. 1 in mechanical engineering, engineering management, and industrial engineering for 2024, with top-three rankings in electrical and computer engineering, as well as civil engineering.

100%

Online

Learn on your own schedule

#5 Ranked

Graduate Engineering

Programs in the U.S.

U.S. News & World Report, 2026

#2 in the U.S.

Best Online

Engineering Master's

U.S. News & World Report, 2026