Field Biologist Variable OnCall

About the Job
Bancroft Construction Services (BCS) provides environmental compliance, biological monitoring, and construction support services for public and private infrastructure projects throughout California. Our team works closely with construction managers, contractors, and regulatory agencies to ensure projects are completed efficiently while maintaining full compliance with environmental permits and regulations.

This is a seasonal variable on-call, project-based position with variable hours depending on project needs. 4WD or AWD vehicle required for role.

Position Summary
We are seeking variable on-call Field Biologists who will be responsible for biological surveys, construction monitoring, and environmental compliance activities in accordance with federal, state, and local regulations. Responsibilities may include general and focused biological surveys, nesting bird surveys and monitoring, sensitive species monitoring, habitat assessments, and preparation of field documentation and reports.

The position requires the ability to work independently in the field, communicate effectively with construction personnel and project managers, and make sound, real‑time decisions to maintain regulatory compliance across diverse environmental settings, including coastal, agricultural, desert, and riparian habitats.

We are seeking for candidates in the following counties:
Fresno, Kern, Madera, Riverside, Tuolumne, Imperial, Kings, Mono, San Bernardino, Tulare, Inyo, Los Angeles, Orange, Santa Barbara, Ventura.

Duties & Responsibilities

Conduct general biological reconnaissance surveys, habitat assessments, and focused (including protocol‑level) surveys for sensitive plant and wildlife species

Perform nesting bird surveys and monitoring, identifying species and nesting behaviors by sight and sound in compliance with applicable buffer requirements and permit conditions

Conduct biological and environmental compliance monitoring during active construction activities

Coordinate with construction crews, superintendents, and project managers to ensure compliance with biological permit conditions and environmental commitments

Complete pre‑construction surveys and daily monitoring documentation

Provide environmental awareness and sensitive species education to construction personnel

Accurately collect field data, photographs, GPS points, and monitoring observations and submit daily reports

Assist with data entry, organization, and management of biological records

Interpret and apply biological permit conditions, regulatory documents, and agency approvals

Communicate field observations, compliance concerns, and schedule availability to project managers and senior biologists

Perform other field or office support tasks as assigned

Minimum Qualifications

Bachelor’s degree in Biology, Ecology, Environmental Science, or a closely related field

Minimum of 6-12 months of professional experience in biological surveys, biological consulting, or construction/environmental monitoring

Valid driver’s license with a satisfactory driving record and access to a reliable vehicle

Preferred Qualifications

Experience with construction monitoring and environmental compliance in the following counties: Fresno, Kern, Madera, Riverside, Tuolumne, Imperial, Kings, Mono, San Bernardino, Tulare, Inyo, Los Angeles, Orange, Santa Barbara, Ventura.

Familiarity with regional wildlife and plant species, including agricultural, desert, and riparian species

Experience conducting nesting bird surveys and monitoring

Experience working with special‑status species (federal or state listed, candidate, or sensitive species)

Familiarity with CEQA, NEPA, CESA, and FESA requirements

Experience using GPS units, Survey123, ArcGIS, ArcCollector, or similar field data collection tools

Scientific Collecting Permit (CDFW), USFWS 10(a)(1)(A) permit, or similar authorizations (preferred, not required)

Work Environment
This position is field-intensive and may involve:

Long hours in outdoor environments and temperature extremes

Walking or hiking on uneven terrain while carrying field equipment

Working in active construction sites around heavy equipment

Candidates must be physically capable of performing required field duties safely.

Equal Opportunity Employer
Bancroft Construction Services is an Equal Opportunity Employer. We are committed to creating a diverse and inclusive workplace and encourage applications from all qualified individuals, including women, minorities, veterans, and persons with disabilities. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other protected characteristic.

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