🌿 Senior Biologist

Location: Southern California (Hybrid )

Employment Type: Full‑Time

Experience Level: Senior

About the Role

We are seeking an experienced Senior Biologist to join a specialized environmental consulting practice providing biological and regulatory services for public and private sector clients throughout California. This role is ideal for a biologist who combines strong technical expertise with project leadership, client coordination, and regulatory proficiency. The Senior Biologist will lead biological studies, manage projects, and support environmental compliance efforts related to land development, infrastructure, and natural resource management.

Key ResponsibilitiesLead and conduct biological field surveys, including:Flora and fauna surveysHabitat assessmentsFocused and protocol-level special-status species surveysPrepare and review technical documents such as:Biological Constraints AnalysesBiological Resources Technical ReportsMitigation and Monitoring PlansCEQA and NEPA biological sectionsServe as Project Manager or Task Lead on biological projectsCoordinate with planners, engineers, regulatory agencies, and clientsEnsure compliance with state and federal regulations including:California Endangered Species Act (CESA)Federal Endangered Species Act (ESA)Clean Water ActCEQA / NEPASupport permitting with agencies such as CDFW, USFWS, and USACEProvide mentoring and technical guidance to junior biologistsAssist with proposal preparation, scheduling, and budgeting as neededRequired QualificationsBachelor’s degree in Biology, Ecology, Environmental Science, or a related field(Master’s degree preferred)8–15+ years of professional biological consulting experience in CaliforniaDemonstrated expertise in:California flora and faunaSpecial-status species surveysRegulatory permitting and agency coordinationStrong technical writing and report preparation skillsAbility to manage multiple projects and meet deadlinesWillingness and ability to conduct fieldwork, including variable terrain and conditionsValid California driver’s licensePreferred QualificationsExperience with linear infrastructure, land development, or public works projectsCertifications or permits for specialized species surveysExperience serving as a client point of contactFamiliarity with biological mitigation design and implementationWhat We OfferCompetitive salary based on experienceFlexible work environment with hybrid optionsOpportunity to lead meaningful environmental and conservation projectsCollaborative team culture with a focus on technical excellenceComprehensive benefits package including health insurance, PTO, and retirement optionsJob Type & Location

This is a Contract to Hire position based out of Ontario, CA.

Pay and Benefits

The pay range for this position is $51.44 - $62.50/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

Workplace Type

This is a hybrid position in Ontario,CA.

Application Deadline

This position is anticipated to close on Feb 11, 2026.

About Actalent

Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email actalentaccommodation@actalentservices.com for other accommodation options.