P.C. Rossin College of
Engineering and Applied Science

The Industrial and Systems Engineering (ISE) graduate program is global in scope for students interested in pursuing research at the cutting edge of the discipline.

ISE research areas include mathematical optimization, data science and machine learning, energy and service systems, and high-performance computing.

The main areas of concentration for Ph.D. study include:

  • Optimization: Nonlinear optimization; Convex and conic optimization; Stochastic and robust optimization; Discrete optimization and integer programming; Numerical method of optimization and software; Financial optimization

  • Applied Probability and Statistics

  • Stochastic processes

  • Queueing networks

  • Simulation

  • Applied Operations Research

  • Supply chain

  • Smart grid and applications in energy

  • Scheduling

  • Healthcare systems

Click here for the Ph.D. Program Requirements.

How long will it take to complete a Ph.D. degree in the ISE Department?
  • The Ph.D. program requires a minimum of 48 credit hours if entering with a master’s degree.

  • If entering with a bachelor’s degree, a student must complete at least 72 credit hours. 

  • The usual length of time is about four to six years.  A dissertation is required for the Ph.D. program.

Could I apply directly to the Ph.D. program without having a master’s degree first?

Yes; you will need to complete 72 credits of course work. 

Interested in joining Lehigh University's Industrial and Systems Engineering Graduate Program? Apply today:

Sponsors of Research Projects:

Research in the ISE department is sponsored by NSF, Department of Energy, U.S. Department of Labor, the Commonwealth of Pennsylvania, PITA, IBM, Johnson & Johnson, SAS, Lucent Technologies, and more.

Affiliated Lehigh Research Centers, Laboratories, and Institutes:

Department of Industrial and Systems Engineering
Lehigh University
200 West Packer Avenue
Bethlehem, PA 18015-1582
Phone: (610) 758-4051

E-mail: Ana Quiroz
Apply Now: Graduate Admissions