Jobs and Careers

Wetlands / Aquatic Resources Delineation Senior Biologist

California, CA, United Statesfull_timeVerifiedPosted 21 Aug 2025

💰 $100,000/yr

About the role

Location(s): Southern California
Practice/Department: Biological
Internal Title: Aquatic Resources Delineation Expert
Work Environment: Hybrid
Compensation: $100,000-150,000/annually*

Dudek’s journey began in 1980 with a vision to serve Southern California’s water and wastewater agencies.
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. Our work has been recognized by leading industry organizations, and we’ve been honored with multiple national Top Workplace Awards.
Our employee-owners 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.
Learn more about our award-winning culture, the benefits and perks of being a Dudekian, and the projects you will have the opportunity to shape.

Who You Are
As an employee-owner, you embrace accountability, working safely, and collaboration while thinking resourcefully and independently.
Like all Dudekians, you are curious and solution-oriented, with the ability to adapt quickly to changes and approach challenges with a spirit of innovation.

How You’ll Make an Impact
Dudek is currently seeking a full-time senior-level Biologist to join our biological resources team. The successful candidate will help grow Dudek’s biological resources practice; with a focus on aquatic resource delineations and permitting; and work collaboratively with other Dudek staff based throughout our California offices. This position will necessitate both in-office and field-based work and can be located out of any of our California offices.

Duties and Responsibilities

Plan and lead aquatic resource delineations;
Plan and lead collection of detailed field data, work in remote field locations, hike steep slopes over uneven terrain, and work full days in all types of weather
Prepare and oversee preparation of reports summarizing methodology, field survey results and recommendations;
Prepare and oversee preparation of Aquatic Resources Delineation Reports;
Prepare and oversee preparation of documents supporting environmental permit applications and CEQA/NEPA aquatic resources evaluations;
Prepare scopes of work and cost estimates for aquatic resources delineation work;
Manage technical projects from inception to completion, ensuring timely and efficient delivery;
Lead, mentor, and support project teams with the goal of maximizing performance and efficiency in the field and with report writing;
Mentor and train junior staff in collaboration with other senior staff;
Participate in the development of guides and training materials;
Represent Dudek and clients in agency meetings and public hearings as a subject matter expert for aquatic resource delineations and permitting;
Track and keep abreast of regulatory and delineation protocol changes to ensure compliance with the latest requirements.

Minimum Qualifications

Bachelor’s degree in biology, ecology, botany, environmental science or related natural resources field;
A minimum of 12 years’ of experience preparing and focusing solely on aquatic delineations and identifying wetland mapping boundaries using the 1987 US Army Corps of Engineers Wetland Delineation Manual and Regional Supplements.
Expert-level knowledg