# Senior Staff Biologist at Langan Engineering & Environmental Services

- Company: Langan Engineering & Environmental Services
- Location: Irvine, California, United States
- Places: Irvine, United States
- Posted: 2026-07-23
- Apply: https://job-boards.greenhouse.io/langanengineeringandenvironmentalservicesllc/jobs/4329716009
- Page: https://ye.saranatour.dev/jobs/senior-staff-biologist-langan-engineering-environmental-services-kn71rw9w0teakwkys3zwkgcej98hahqv

## The posting

Senior Staff Biologist
Langan Engineering & Environmental Services · Irvine, California, United States

Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companies, corporations, healthcare systems, colleges/universities, and large infrastructure programs throughout the U.S. and around the world. Our employees collaborate seamlessly among 50+ offices and gain valuable hands-on experience that fosters career growth. Langan culture is entrepreneurial from advancing innovative technical solutions, to participating in robust training and knowledge sharing, to making progressive change within the communities we live and work.

Consistently ranked among the top ten “Best Firms to Work For” and Engineering News-Record’s top 50 firms worldwide, Langan attracts and retains the best talent in the industry. Employees thrive at Langan, a firm that fosters an inclusive and supportive work environment for all; prioritizes wellbeing, health, and safety; encourages volunteerism and philanthropy; offers workplace flexibility, along with carbon-neutral office spaces; and empowers individuals to contribute their skills and knowledge to make impactful contributions.

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## Job Summary

Langan is seeking a Senior Biologist to join its collaborative team in**Irvine, CA**. This individual will serve a key role in conducting and leading biological resource assessments, special-status species surveys, vegetation mapping, nesting bird surveys, restoration monitoring, and biological construction monitoring throughout Southern California. In this role, you will collaborate with multidisciplinary teams supporting infrastructure, energy, land development, transportation, water, and environmental restoration projects.

## Job Responsibilities

- 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.
- Performs other duties as requested

**Desired Key Species Experience**

- Coastal California gnatcatcher
- Least Bell's vireo
- Southwestern willow flycatcher
- Burrowing owl
- Quino checkerspot butterfly
- Stephens' kangaroo rat
- Arroyo toad
- California red-legged frog
- Sensitive coastal sage scrub and riparian plant communities
- Special-status flora of Southern California

## Qualifications

- Bachelor'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 skill