Duffield Associates, an award-winning geoscience consulting firm, was established in 1976 and has grown to include a professional and technical staff of over 90 individuals. The firm’s headquarters are located in a historic barn and farmhouse in Pike Creek Valley outside of Wilmington, Delaware. We have regional offices in historic Georgetown, Delaware, Center City Philadelphia and Carlisle, Pennsylvania, Cape May Court House, New Jersey, and Havre De Grace, Maryland.

A relaxed work environment in all offices encourages a free exchange of ideas and fosters the opportunity for professional growth.


Current Opportunities Below:  (Last Updated 10/20/14)


POSITION:  Civil Engineering Project Manager


POSITION:  Construction/Geotechnical Project Manager


POSITION:  Project Manager/Geotechnical Engineer:  4-8 years experience

                    Geotechnical Engineer:  Entry Level to 3 years Experience


POSITION:  Construction Review Technician


POSITION:  Materials Testing Technician



Duffield Associates offers a comprehensive benefits package including:

  • life, medical and dental insurance
  • 401K investment program tuition assistance
  • computer assistance
  • special programs for job related safety and health concerns
  • flexible spending accounts

Duffield Associates, Inc is an Equal Opportunity Employer AA/M/F/V/H. Our policy is to recruit and employ qualified persons without regard to age, race, color, religion, sex, national origin, disability, or veteran status.
Resumes, along with a cover letter, can be sent to:

Duffield Associates, Inc.
5400 Limestone Road
Wilmington, DE 19808
Fax 302.239.8485, e-mail hr@duffnet.com