Skip to main content
Langan Engineering and Environmental Services, LLC logo

Senior Staff Biologist

Langan Engineering and Environmental Services, LLC

Irvine, CAFull-time$76–110K/yrPosted 3mo agoStill listed today

Most applications go out cold — see where you stand first. No sign-up to start.

You apply on the employer's site, with no Olive account needed.

Watch jobs like this.

Don't just apply. Show up ready.

Olive works from this exact posting.

At a glance

Compensation
$76–110K/yr
Location
Irvine, CA
Schedule
Full-time
Work Authorization
Not specified

Olive lists jobs from US employers, including remote roles you can work from the United States.

Requirements

Credentials this posting asks for.

Bachelor's degree, required

Job overview

Langan is seeking a Senior Biologist for its Irvine team to lead biological resource assessments, species surveys, vegetation mapping, and monitoring across Southern California. The role supports infrastructure, energy, land development, transportation, water, and restoration projects, working with multidisciplinary teams. It also involves preparing permit applications, coordinating implementation of permit conditions, and traveling to remote job sites.

Skills & qualifications

RequiredNice to have

Skills

Biological Assessments, requiredHabitat Assessments, requiredSpecial-Status Species Surveys, requiredCEQA, requiredNEPA, requiredESA, requiredClean Water Act, requiredCalifornia Fish and Game Code, requiredPermit Applications, requiredArcGIS Pro, requiredArcGIS Field Maps, requiredSurvey123, requiredGPS Data Collection, requiredTechnical Writing, requiredCommunication, requiredFieldwork, requiredCoastal California Gnatcatcher, nice to haveLeast Bell's Vireo, nice to haveSouthwestern Willow Flycatcher, nice to haveBurrowing Owl, nice to haveQuino Checkerspot Butterfly, nice to haveStephens' Kangaroo Rat, nice to haveArroyo Toad, nice to haveCalifornia Red-Legged Frog, nice to haveCoastal Sage Scrub, nice to haveRiparian Plant Communities, nice to haveSouthern California Flora, nice to have

Qualifications

Bachelor's in Biology or Related, required3+ Years Biological Consulting Experience, required

Benefits

Medical Insurance
Dental Insurance
Vision Insurance
Parental Leave
401(k) Match
Paid Time Off
Tuition Assistance

Full job description

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.

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 skills;

  • Ability to travel and perform fieldwork in varying environmental conditions.

Langan provides a rich array of programs and benefits to help its employees advance their careers and enhance the quality of their lives. Our comprehensive compensation package includes: full-time employment company paid medical, dental, and vision coverage; life insurance, short- and long-term disability insurance, and paid pregnancy disability leave; 401(k)/Roth with company match; paid time off including parental and military leave; employee referral and professional license bonuses; and educational reimbursement.

Langan offers employee resource groups; flexible work schedules; extensive training; wellness programs; buddy and mentoring programs; and much more!

Langan is committed to providing equal employment opportunities to all qualified applicants and employees, including individuals with disabilities and protected veterans. We believe that an inclusive workplace is essential for the well-being and success of our employees. Certain US jurisdictions require Langan to include an estimate of salary or hourly ranges. Actual compensation may vary based on factors such as related work experience, location, market conditions, education/training, certifications and other credentials, as well as applicable knowledge and skills. Certain roles may be eligible for overtime and participation in the firm's annual bonus and performance review program. Bonuses are discretionary and based on individual job performance and the profitability of the firm. Employees are also eligible to receive up to 20 days of paid vacation time, 10 days of paid sick time and 10 paid holidays throughout the year. Eligibility and actual paid time off may vary based on local law and factors such as hours worked, related work experience and level.

Pay Range $76,000—$110,000 USD

Please review our Applicant Privacy Notice at Collection to understand how we collect, use, and retain your personal information: https://www.langan.com/langan-notice-at-collection

How this job compares

Set against the 530 open Environmental Consultant jobs on Olive Jobs, counted November 10, 2026.

Pay
  • This posting$76–110K/yr
  • California median$120–181K/yr61 salary ranges
  • US median$98–158K/yr331 salary ranges

This range's midpoint, $93K, is 38% below the California median midpoint ($150K) — in the lowest quarter of Environmental Consultant salary ranges in California.

Openings
Olive Jobs lists 64 open Environmental Consultant jobs in California and 530 across the US. 11% of them nationwide are listed as remote or flexible.
Hiring the most in California
Experience
This posting asks for at least 3 years of experience — less than three in four Environmental Consultant postings that state a minimum ask for (median 7 years, across 481 postings).
Education
This posting asks for a bachelor's degree; 290 of the 530 open Environmental Consultant jobs (55%) ask for a bachelor's degree or higher.

Counted across the open, public US postings on Olive Jobs on November 10, 2026. Pay medians are the middle values of the low ends and of the high ends of postings that list both ends of a range in the same cadence (a yearly salary or an hourly rate); a range's midpoint is halfway between its ends. Pay and experience figures resting on fewer than 20 postings are left out.

Prepare for this role

You've read the whole posting — now see how you match it.