NewSenior Staff Biologist Langan Engineering & Environmental ServicesSenior Staff BiologistIrvine, CaliforniaBachelor's degree in biology, wildlife biology, ecology, botany, environmental science, or related field; 3–6 years of biological consulting experience in Southern California; Experience conducting habitat assessments and special-status species surveys; Familiarity with CEQA, NEPA, ESA, Clean Water Act, and California Fish and Game Code requirements; Experience preparing permit applications and coordinating with USFWS, CDFW, USACE, Regional Water Boards, and local agencies; Experience with ArcGIS Pro, ArcGIS Field Maps, Survey123, and GPS-based data collection; Excellent technical writing and communication skills; Ability to travel and perform fieldwork in varying environmental conditions. Lead nesting bird surveys, biological resources and habitat suitability assessments, vegetation communities classification and mapping, plant and animal species inventories, special status plant and animal species surveys, jurisdictional delineations, resource constraints analyses, and tree surveys; Develop permit application packages for ACOE, CDFW, USFWS, and local agencies; Coordinate with field teams and project managers to implement permit conditions; Travel to job sites in remote locations; and, Work in construction environments where schedule, timeliness, and attention to detail are top priorities.
Tissue Culture Biologist Global Channel ManagementTissue Culture BiologistPasadena, CaliforniaProficiency in data analysis and reporting tools, such as Excel, R, or Python.?Excellent communication and teamwork skills. Work closely with other scientists and engineers to ensure and continuously improve the quality and efficiency of the tissue culture and automation processes.
On-Call Biologist | Resource Management (Part-Time) PsomasOn-Call Biologist | Resource Management (Part-Time)Riverside, CA$28–$50 / hourAs our Biologist on our Resource Management team, you will support a variety of environmental and infrastructure projects through biological field studies, regulatory permitting, and technical analyses. This position is ideal for a junior- to mid-level professional who enjoys balancing field and office work and is passionate about protecting sensitive biological resources.
As-Needed Biologists - Southern California Helix Environmental Planning IncAs-Needed Biologists - Southern CaliforniaOrange, CA$30–$39 / hourAs 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. 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.
Senior Biologist / Project Manager TRC Companies IncSenior Biologist / Project ManagerIrvine, CA$100,006.40–$130,000 / yearThe ideal candidate has 10-15 years of progressively responsible experience in environmental consulting, with extensive knowledge of federal, state, and local environmental regulations and a proven track record of successfully delivering projects for public and private sector clients. TRC is seeking a talented, motivated, and detail-oriented Senior Biologist / Project Manager who is responsible for managing complex environmental projects while providing technical leadership in biological resources, ecological assessments, permitting, and regulatory compliance.
Mid - Senior Wildlife Biologist / Project Manager - Inland Empire DudekMid - Senior Wildlife Biologist / Project Manager - Inland EmpireRiverside, California$90,000–$110,000 / yearFull timeThe successful candidate will help grow Dudek’s biological resources practice locally in the Orange County and surrounding regions; manage and implement a wide variety of projects involving sensitive biological resources, including botanical surveys, wildlife surveys, and aquatic resource delineations; and work collaboratively with other Dudek staff based out of our southern and northern California offices. Possess or actively pursuing U.S. Fish and Wildlife Service Section 10(a)(1)(A) recovery survey permits and/or California Department of Fish and Wildlife (CDFW) Memorandum of Understanding (MOU)/Scientific Collecting Permits (SCPs) for regionally relevant species including, but not limited to, coastal California gnatcatcher, Quino checkerspot butterfly, southwestern willow flycatcher, burrowing owl, and Crotch’s bumblebee.
As-Needed Field Biologist - Riverside DudekAs-Needed Field Biologist - RiversideRiverside, California$24–$50 / hourOur employees are unified by a singular commitment to supporting projects that address key societal issues, such as the transition to renewable energy, infrastructure hardening and repair, environmental protection, and community resilience. Today, we are a 100% employee-owned firm supporting clients nationwide and delivering projects that improve and protect the built and natural environments of communities throughout the United States.
As-Needed Field Biologist - Orange County DudekAs-Needed Field Biologist - Orange CountyMission Viejo, California$24–$50 / hourOur employees are unified by a singular commitment to supporting projects that address key societal issues, such as the transition to renewable energy, infrastructure hardening and repair, environmental protection, and community resilience. Today, we are a 100% employee-owned firm supporting clients nationwide and delivering projects that improve and protect the built and natural environments of communities throughout the United States.
Mid - Senior Wildlife Biologist / Project Manager - Orange County DudekMid - Senior Wildlife Biologist / Project Manager - Orange CountyMission Viejo, California$90,000–$110,000 / yearFull timeThe successful candidate will help grow Dudek’s biological resources practice locally in the Orange County and surrounding regions; manage and implement a wide variety of projects involving sensitive biological resources, including botanical surveys, wildlife surveys, and aquatic resource delineations; and work collaboratively with other Dudek staff based out of our southern and northern California offices. Possess or actively pursuing U.S. Fish and Wildlife Service Section 10(a)(1)(A) recovery survey permits and/or California Department of Fish and Wildlife (CDFW) Memorandum of Understanding (MOU)/Scientific Collecting Permits (SCPs) for regionally relevant species including, but not limited to, coastal California gnatcatcher, Quino checkerspot butterfly, southwestern willow flycatcher, burrowing owl, and Crotch’s bumblebee.
As-Needed Field Biologist - Los Angeles DudekAs-Needed Field Biologist - Los AngelesPasadena, California$24–$50 / hourOur employees are unified by a singular commitment to supporting projects that address key societal issues, such as the transition to renewable energy, infrastructure hardening and repair, environmental protection, and community resilience. Today, we are a 100% employee-owned firm supporting clients nationwide and delivering projects that improve and protect the built and natural environments of communities throughout the United States.
Entry Level Biologist Bridgemed SolutionsEntry Level BiologistIrvine, CaliforniaWe not only custom produce the valves from scratch ( tissue to valve), but also fill the gap as in-house consultants offering help in various areas like biocompatibility, ISO 22442, sterilization, viral inactivation qualification, QMS, regulatory submissions and FIH studies. Our talented associates work with your R&D, Regulatory, Quality, and Manufacturing divisions (or “teams”) to provide cost and time saving strategies, whether it is for simple biocompatibility testing or deep dive consulting on viral inactivation studies for class III medical devices.
Senior Biologist Stantec IncSenior BiologistParamount, CAYou are a biologist or natural resources management specialist; you at minimum hold a bachelor's degree (master's degree preferred) in Biological Sciences, Environmental Science, Ecology, Natural Resources Management, or a related field; and have a minimum 10 years of related experience demonstrating increasing levels of responsibility in conducting biological resources surveys and preparing technical reports. In this position, you will be responsible for the contribution and management of multi-disciplinary project teams in all phases of the execution and delivery of siting and licensing of energy production, including renewable energy, electric and gas transmission projects, transportation projects, community development projects, and projects for other public and private sector clients.
Project Biologist Stantec IncProject BiologistParamount, CAIn this position, you will be relied upon to lead and mentor field teams on a variety of multi-disciplinary projects for diverse clientele and business sectors, including renewable energy, oil and gas projects, electric and gas transmission projects, transportation projects, community development projects, and projects for other public and private sector clients. You are a biologist or natural resources management specialist; at minimum hold a bachelor's and/or master's degree in Biological Sciences, Environmental Sciences, Ecology, Natural Resources Management, or a related field; and have a minimum of 2 to 5 years of related experience demonstrating increasing levels of responsibility in conducting biological resources surveys and preparing technical reports.
Senior Biologist WSP Global IncSenior BiologistIrvine, CA$116,000–$140,900 / yearProvide oversight with data collection efforts for identifying and compiling observational and spatial data concerning a variety of vegetation, wetland, wildlife, marine, terrestrials, botanical, and/or avian species, as well as biological/environmental data from samples of air, soil, water, sludge, and other matrices for projects, investigations, and surveys. Oversee and monitor cross-functional teams in executing project work, permitting strategy, environmental impact assessments, field biology, and regulatory strategy, including project budgets, tracking hours and expenses, and task completion.
Entry Level Biologist BRIDGEMED SOLUTIONS INCEntry Level BiologistIrvine, CA$20–$23 / hourFull timeRequired: Bachelor’s degree in Biology, Biological Sciences, Biotechnology, or related field. Coordinate with internal teams (Sales, Quality, Manufacturing, and Logistics) to.
Associate Biologist On-Call Stantec IncAssociate Biologist On-CallIrvine, CACalifornia, arroyo toad, western spadefoot toad, Stephen's kangaroo rat, San Diego and Riverside fairy shrimp, Quino checkerspot and Hermes copper butterfly, Crotch's bumble bee, desert tortoise, burrowing owl, western snowy plover, California least tern, least Bell's vireo, southwestern willow flycatcher, and/or coastal California gnatcatcher. The candidate will work closely with project managers, scientists, engineers, and other specialists with the development and delivery of biological studies for projects involving electric transmission and distribution lines, pipelines, wind and solar electric generation facilities, and other projects for private, municipal, state, and federal clients.
On Call Biologist WSP Global IncOn Call BiologistIrvine, CA$27.55–$34.43 / hourWSP USA is providing the compensation range that the company in good faith believes it might pay and offer for this position, based on the successful applicant's education, experience, knowledge, skills, abilities in addition to internal equity and specific geographic location. Any unsolicited resumes, including those submitted to hiring managers or other business leaders, will become the property of WSP and WSP will have the right to hire that candidate without reservation - no fee or other compensation will be owed or paid to the recruiter, employment agency, or other staffing service.
Associate Biologist Stantec IncAssociate BiologistIrvine, CALocation: This role is based out of our Southern California Stantec offices, including [Los Angeles, CA; Pasadena CA; Irvine, CA; Bakersfield, CA; Santa Barbara, CA; Ventura, CA; Monrovia, CA.] however, geographic alignment with other Stantec offices can be considered based on experience. Primary Location: United States | CA | Irvine Organization: BC-1858 EnvSvcs-US West S California Employee Status: Regular Business Justification: New Position Travel: Yes Schedule: Full time Job Posting: 13/05/2026 08:05:28 Req ID: 1005843.
Mid-level Environmental Biologist - Los Angeles County DudekMid-level Environmental Biologist - Los Angeles CountyPasadena, California$80,000–$90,000 / yearFull timePossess or actively pursuing U.S. Fish and Wildlife Service Section 10(a)(1)(A) recovery survey permits and/or California Department of Fish and Wildlife (CDFW) Memorandum of Understanding (MOU)/Scientific Collecting Permits (SCPs) for regionally relevant species including, but not limited to, coastal California gnatcatcher, Quino checkerspot butterfly, southwestern willow flycatcher, burrowing owl, and Crotch’s bumblebee. The successful candidate will help grow Dudek’s biological resources practice locally in the Southern California region; manage and implement a wide variety of projects involving sensitive biological resources, including botanical surveys, wildlife surveys, and aquatic resource delineations; and work collaboratively with other Dudek staff based out of our southern and northern California offices.
Mid-level Environmental Biologist - Riverside DudekMid-level Environmental Biologist - RiversideRiverside, California$80,000–$90,000 / yearFull timePossess or actively pursuing U.S. Fish and Wildlife Service Section 10(a)(1)(A) recovery survey permits and/or California Department of Fish and Wildlife (CDFW) Memorandum of Understanding (MOU)/Scientific Collecting Permits (SCPs) for regionally relevant species including, but not limited to, coastal California gnatcatcher, Quino checkerspot butterfly, southwestern willow flycatcher, burrowing owl, and Crotch’s bumblebee. The successful candidate will help grow Dudek’s biological resources practice locally in the Southern California region; manage and implement a wide variety of projects involving sensitive biological resources, including botanical surveys, wildlife surveys, and aquatic resource delineations; and work collaboratively with other Dudek staff based out of our southern and northern California offices.