Intern / Co-Op - Civil / Environmental Engineering

Geosyntec Consultants offers an Intern / Co-Op position in Civil / Environmental Engineering at its Oakland, Walnut Creek, Orange County or Los Angeles offices. The role applies civil, geotechnical, environmental and water resources engineering knowledge to real-world projects while developing consulting business skills.

Interns perform engineering calculations with computer-based tools and prepare technical documents including reports, letters, memoranda, plans, specifications and proposals. Additional tasks include data input and analysis to create maps, tables and figures plus fieldwork such as soil and groundwater sampling.

The firm serves private and public clients on complex environmental, natural resource and civil infrastructure challenges from offices worldwide. Interns interact daily with engineers, geologists, CADD operators, contractors and administrative staff in a collaborative project environment.

Geosyntec invests in employee development with opportunities to return for up to two additional semester rotations. The position runs full-time for 13 to 15 weeks during summer 2026 and supports well-being programs for employees and families.