Job Description

Job Description

About the Job  

Bancroft Construction Services is seeking an on-call Field Biologist to support nesting bird surveys, environmental compliance, and construction monitoring for projects in the Central Valley area.  This position is ideal for a motivated biologist who enjoys fieldwork, problem-solving in active construction environments, and working collaboratively with multidisciplinary teams. 

This is an on-call, project-based position with variable hours depending on project needs. 

Position Summary  

This field-based role involves conducting nesting bird and other biological surveys, monitoring construction activities, implementing avoidance and minimization measures, and documenting compliance with federal, state, and project-specific environmental permits. The position requires the ability to work independently in dynamic outdoor and construction environments while coordinating closely with construction teams and environmental staff. 

Responsibilities  

• Conduct biological construction monitoring and environmental inspections 
• Perform pre-construction surveys and ongoing compliance monitoring 
• Implement avoidance and minimization measures (WEAPs, ESAs, buffers, exclusion zones) 
• Monitor and maintain wildlife exclusion fencing 
• Conduct nesting bird surveys and wildlife monitoring 
• Identify common and special-status plant and wildlife species 
• Collect field data using GPS and mobile apps (ArcGIS Field Maps, Fulcrum) 
• Prepare accurate daily logs and compliance documentation 
• Coordinate directly with construction crews and project staff 

Qualifications & Skills  

Minimum Qualifications  

• Bachelor’s degree in Biology, Environmental Science, Ecology, or related field 
• Minimum 1 year of field biology or construction monitoring experience 
• Valid U.S. Driver’s License and ability to travel independently 
• Ability to work outdoors in variable weather and terrain 
• Strong attention to detail and communication skills 
• Flexible schedule, including weekends, holidays, and overnight travel 
• U.S. Citizenship required 

Preferred Qualifications  

• Experience assessing vegetation communities in the San Joaquine Valley 
• Prior experience on CA High-Speed Rail projects 
• California rare plant identification experience 
• Experience leading WEAPs and working directly with contractors 

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 
• Occasional travel throughout Central Valley 

Compensation & Employment Status  

• Hourly Rate: Competitive and commensurate with experience 
• Employment Type: On-call / project-based 
• This position is not benefit-eligible 

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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