FILLED: Entry-Level Hydraulic Engineering Intern (EI) – Durham, NC

Three Oaks Engineering is seeking a full-time Engineering Intern (Engineer in Training) to join our expanding hydraulic design team. The position will be located in our Durham, NC office. The ideal candidate will support our hydraulic design group in hydraulic and erosion and sediment control design and floodplain modeling, and will also support Three Oaks’ Transportation Design, Natural Systems, and National Environmental Policy Act (NEPA) groups. Three Oaks recently started a transportation design group to work cohesively with our established hydraulic design group. Our goal is to offer our transportation clients expanded services in hydraulic and transportation design for multimodal transportation and other infrastructure planning and design projects.

Required Qualifications:

  • Bachelor’s degree in Civil, Environmental, Biological & Agricultural Engineering or equivalent.
  • EI or EIT certification or ability to obtain within 12 months.
  • An interest in contributing to multiple design disciplines in a collaborative work environment.

Preferred Qualifications:

  • Experience with the linear transportation design process.
  • Experience with NCDOT and/or SCDOT design projects.
  • Proficiency with AutoCAD, Civil3D, Microstation, Civil3D, and/or Open Road Designer.
  • Experience with the linear transportation design process.
  • Experience with various hydrologic and hydraulic analysis software (e.g., HEC-RAS, HY-8, GEOPAK Drainage, HEC-HMS, StormCAD, HydroCAD).


Three Oaks offers exceptional benefits, including health, dental, vision, flexible spending account, monthly health stipend, long term/short term disability, matching 401(k), company-wide bonus program, as well as flexible work schedules and the opportunity to grow with the company. The salary for this position will be commensurate with experience and capabilities. 

To Apply

The start date for this position is flexible. Please send resume, cover letter, and three references via email to and reference Hydraulic EI in the subject line.

Three Oaks is an equal opportunity employer. We recruit and promote employees regardless of age, race, sex, color, national origin, religion, disability, sexual orientation, gender identity, veteran status, or other legally recognized basis.

About Three Oaks Engineering

Three Oaks Engineering is a growing, sustainably oriented, woman-owned business comprised of talented and motivated individuals who focus on helping our clients implement infrastructure projects with careful consideration of community and environmental needs. We are searching for like-minded individuals to work in a collaborative atmosphere with the goals of delivering outstanding products and superior client service while providing our employees opportunities for growth and advancement along with the flexibility to balance business and family. We pride ourselves on maintaining the kind of corporate culture envisioned by our founders, who wanted to create the type of workplace where they wanted to work.

Three Oaks’ Commitment to Diversity, Equity, & Inclusion (DEI)

At Three Oaks Engineering, we believe creating a workplace that values and encourages DEI leads to a stronger team and better outcomes for our clients and is essential to achieving our mission of being a sustainable partner in our community. We are dedicated to fostering an inclusive work environment where everyone feels welcomed, respected, and empowered to contribute their unique skills and perspectives. We value diversity in all its forms, including diversity of thought, experience, and background.

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