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$37K

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$138K

How much do per diem terrestrial biologist jobs pay per year?

As of Aug 19, 2026, the average yearly pay for per diem terrestrial biologist in the United States is $89,403.00, according to ZipRecruiter salary data. Most workers in this role earn between $59,500.00 and $121,000.00 per year, depending on experience, location, and employer.

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Per Diem Terrestrial Biologist jobs near you

As-Needed Biologist

HELIX ENVIRONMENTAL PLANNING, INC.

Pasadena, CA • On-site

$30 - $39/hr

Full-time

Re-posted 14 days ago

Job description

Description

Looking for meaningful fieldwork with a company that values science, collaboration, and flexibility? HELIX Environmental Planning is growing, and we're seeking motivated As-Needed Biologists to support our Southern California biology team during our busy field seasons. This As-Needed Biologist role is ideal for early to mid-level professional biologists who thrive in the field, enjoy diverse projects, and want flexible, as-needed work with a respected environmental consulting firm. If you're an As-Needed Biologist ready to make an impact, we want to hear from you.


Why HELIX?

HELIX Environmental Planning is a California-based, employee-owned environmental consulting firm known for technical excellence, collaboration, and integrity. As an As-Needed Biologist, you'll join a supportive team that values high-quality science, safety, and professional respect. This is an as-needed, hourly position with variable hours, commonly ramping up during the spring and peak field seasons-perfect for professionals seeking flexibility while working on meaningful environmental projects.


Day in the Life

As an As-Needed Biologist, your days will be spent in the field across Southern California-conducting construction monitoring, performing bird surveys, mapping vegetation, and supporting restoration and infrastructure projects. You'll coordinate schedules with project managers, document field conditions, and contribute to projects that protect sensitive biological resources.


What You'll Do

  • Conduct terrestrial biological monitoring for construction and restoration projects
  • Perform biological surveys including bird surveys, vegetation mapping, and focused species surveys (including rare plants)
  • Maintain accurate field notes, maps, and project documentation
  • Manage your workload and coordinate schedules with project managers
  • Deliver high-quality work products on time and within budget

Compensation

$30 - $39 per hour, based on experience and qualifications.


Ready to put your field expertise to work? Apply today to join HELIX Environmental Planning as an As-Needed Biologist and be part of a team making a real environmental difference across Southern California.


HELIX is an equal opportunity employer committed to diversity and an inclusive work environment. We encourage all qualified applicants to apply regardless of gender, race, color, religion, sex (including pregnancy, gender identity, and sexual orientation), parental status, national origin, disability, age, genetic information (including family medical history), political affiliation, military service or veteran status. These protections extend to all management practices and decisions, including recruitment and hiring, appraisal systems, promotions, training, and career development programs.


Requirements

Minimum Requirements

Bachelor's degree in biology, environmental science, or related field

Minimum 2 years of professional terrestrial biology experience (environmental consulting required)

Experience with Southern California terrestrial flora, fauna and rare plant identification

Experience with construction monitoring and/or conducting field surveys, including bird surveys

Ability to hike long distances over varied terrain and weather conditions

Valid California Driver's License with a clean driving record


Preferred Qualifications

Valid recovery USFWS permits for listed species (e.g., coastal California gnatcatcher, Quino checkerspot butterfly)

Valid Scientific Collecting Permit (SCP) from CA Dept of Fish and Wildlife

Previously approved by CA Dept of Fish and Wildlife as a Designated Biologist on projects

Experience with least Bell's vireo, Arroyo toad, desert tortoise and/or burrowing owl surveys

Experience preparing biological monitoring reports

Experience conducting surveys and monitoring for desert plant and wildlife species in Southern California



Apply