As-Needed Field Biologist (San Diego)

We are seeking a San Diego-based Field Biologist – As-Needed to provide biological monitoring and compliance support for projects throughout San Diego County and beyond. This role is well suited for an experienced biological generalist who can work independently, understand and apply regulatory permit requirements, and communicate effectively with construction crews and project teams. 

• Conduct biological compliance monitoring during construction activities. 

• Review and apply project-specific permit conditions, mitigation measures, environmental commitments, and monitoring requirements. 

• Conduct preconstruction surveys and identify appropriate buffers or other required protective measures. 

• Communicate biological restrictions and permit requirements clearly and professionally to construction crews, inspectors, and project managers. 

• Identify and document potential compliance concerns and coordinate promptly with the appropriate project team members. 

• Prepare accurate daily monitoring logs, field notes, preconstruction survey reports, and other compliance documentation. 

• Conduct habitat assessments and identify common and special-status plant and wildlife species found in Southern California. 

• Work independently in the field while maintaining regular communication with project managers and technical leads. 

• Support additional biological surveys and Natural Resources projects as needed. 

• Bachelor’s or Master’s degree in biology, ecology, environmental science, or a related field. 

• 3+ years of environmental consulting experience, including construction compliance monitoring. 

• Experience conducting nesting bird surveys and monitoring active nests. 

• Ability to understand and implement regulatory permit conditions, mitigation measures, and project-specific environmental requirements. 

• Familiarity with Southern California habitats and common and special-status plant and wildlife species. 

• Confidence communicating environmental requirements to construction personnel and working collaboratively to maintain compliance. 

• Ability to work independently, exercise sound professional judgment, and recognize when an issue should be elevated. 

• Strong verbal and written communication skills, including experience preparing monitoring logs, field reports, and other technical documentation. 

• Willingness and flexibility to work extended hours, including 10–12+ hour days, as project needs require. 

• Ability to conduct fieldwork in variable weather conditions and on uneven terrain, including hiking while carrying field equipment. 

• Ability to travel to project sites throughout Southern California and drive Rincon or personal vehicles across a variety of road conditions. 

Rincon Consultants does not accept unsolicited applicant/candidate resumes from search firm recruiters and/or temporary agencies that do not have a signed contract and specified work order with Rincon Consultants. Further, such resumes received will be deemed the sole property of Rincon Consultants and no fees will be paid in the event Rincon Consultants subsequently hires such individual. Rincon Consultants is an equal opportunity employer. All aspects of employment will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.