Managing Consultant, Wetland Delineator​/Botanist - Northern California; Casual, Part Time

Role Overview

Step into a position where ecological expertise shapes the future of renewable energy infrastructure across Northern California. As a Principal Consultant, Wetland Delineator/Botanist, you will lead field teams, contribute regulatory insight, and produce scientifically rigorous data that informs major infrastructure decisions.

• Perform and oversee aquatic resource delineations using ESRI Field Maps and sub‑meter GPS collection.
• Conduct and supervise rare plant surveys, vegetation community mapping, and habitat assessments.
• Delineate wetlands per the 1987 Corps Manual and relevant Regional Supplements.
• Delineate Ordinary High Water Mark (OHWM) using applicable guidelines.
• Implement Regional Streamflow Duration Assessment Methods.
• Complete data entry and review with tools such as Survey
  123, Wildnote, and ESRI apps.
• Prepare biotic reports, aquatic resource assessments, jurisdictional determinations, and mitigation plans.
• Lead technical review and QA/QC for fieldwork and reporting.
• Coordinate with clients and regulatory agencies; represent ERM in meetings and public forums.
• Support business development through proposals, cost estimates, and project pursuits.
• Mentor junior staff and support development of training materials.
• Assist with permit application development as needed.
• Perform other duties as assigned.

• Required:
  
  Bachelor’s degree in a natural science field or equivalent field experience.
• Minimum six (6) field seasons conducting wetland delineations using the 1987 Corps Manual and applicable Regional Supplements.
• Familiarity with Army Corps Regional Supplements for Western Mountains, Valleys & Coast, and the Arid West.
• Expertise with sub‑meter GPS, ESRI Field Maps, and map interpretation (NWI, USGS, aerial imagery).
• Strong communication, organizational skills, and collaborative mindset.
• Ability to work outdoors in adverse conditions, hike challenging terrain with equipment.
• Willingness to work weekends, remain on‑call, and travel with frequent overnight stays.
• Valid driver’s license or ability to operate a company vehicle.
• Demonstrated adaptability, accountability, and composure in demanding field and regulatory environments.
• Ability to collaborate effectively with clients, agencies, and internal teams.
• Commitment to mentoring and knowledge‑sharing within the team.
• Preferred:
  Master’s degree in a natural science field.
• Prior experience preparing technical reports, jurisdictional determinations, and mitigation plans.
• Experience implementing Regional Streamflow Duration Assessment Methods.
• Prior experience supporting permit applications and regulatory coordination (USACE, CDFW, EPA).

• Paid time off, parental leave, medical, dental, vision, life, disability, AD&D insurance.
• 401(k) or RRSP/DPSP plan.
• Eligibility for bonus pay (subject to company policies).
• Comprehensive health and wellness benefits for eligible employees.

ERM is proud to be an Equal Employment Opportunity employer. We do not discriminate based upon race, religion, color, national origin, gender, sexual orientation, gender identity, age, status as a protected veteran, status as an individual with a disability, or other applicable legally protected characteristics.