Environmental Science Associates (ESA) is actively seeking On-Call Archaeological Field Technicians in the Northern California Area including San Francisco, Sacramento, Oakland, San Jose, and Petaluma. Candidates must be within a commutable distance and able to commute to support field work onsite as needed. Potential for travel to Southern California, Nevada, and Arizona is also available. You are an effective team member experienced in archaeological and/or paleontological monitoring, surveys, and documentation of archaeological and/or paleontological resources in accordance with applicable local, state, and federal guidelines and requirements. You hold a Bachelor's degree or higher in archaeology, anthropology, paleontology, or a related field. You have a demonstrated ability to use app-based software for field recordation and mapping.