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Ecologist - Wetland Delineations / Impact Assessment

Location
Arlington, VA, United States

Posted on
Feb 17, 2026

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Company Description

At AECOM, we’re delivering a better world.

We believe infrastructure creates opportunity for everyone. Whether it’s improving your commute, keeping the lights on, providing access to clean water or transforming skylines, our work helps people and communities thrive.

Our clients trust us to bring together the best people, ideas, technical expertise and digital solutions to our work in transportation, buildings, water, the environment and new energy. We’re one global team – 47,000 strong – driven by a common purpose to deliver a better world.

Here, you will have freedom to grow in a world of opportunity.

We will give you the flexibility you need to do your best work with hybrid work options. Whether you’re working from an AECOM office, remote location or at a client site, you will be working in a dynamic environment where your integrity, entrepreneurial spirit and pioneering mindset are championed.

You will help us foster a culture of equity, diversity and inclusion – a safe and respectful workplace, where we invite everyone to bring their whole selves to work using their unique talents, backgrounds and expertise to create transformational outcomes for our clients.

We will encourage you to grow and develop your career with us through our technical and professional development programs and diverse career opportunities. We believe in leadership at all levels. No matter where you sit in the organization you can make a lasting impact on the projects you work on, the teams and committees you join and our business.

We offer competitive pay and benefits, well-being programs to support you and your family, and the development resources you need to advance your career.

When you join us, you will connect and collaborate with a global network of experts – planners, designers, engineers, scientists, consultants, program and construction managers – leading the change toward a more sustainable and equitable future. Join us and let’s get started.

Job Description

AECOM is seeking an Ecologist with experience independently conducting federal and state wetland delineations and permitting in the Mid-Atlantic US (VA and MD focus) and participating/leading T&E; habitat assessments and species surveys.

This position has excellent career growth potential within the leading, worldwide environmental services provider to industry and government. We are seeking a dynamic individual, capable of leading environmental impact assessment and permitting for a diverse set of projects that include federal and local government, transportation, energy, utilities, and data center development.

A successful candidate will mentor junior staff, provide technical expertise to internal staff and clients, and coordinate permit approvals with regulatory officials. This position will be based in either our Glen Allen or Arlington, VA office.

The responsibilities of this position include, but may not limited to, the following:


Perform consulting projects to scope, schedule, and budget.
Lead wetlands and waters delineation field work, report writing, and federal & state JD requests.
Prepare permit applications for and coordinate permit approvals with USACE, VDEQ, VMRC, Local Wetlands Boards, MDE, MDNR, and others.
Coordinate with USFWS, NMFS, DWR, DCR, and others regarding T&E; species effects determinations.
Participate/lead T&E; habitat assessments and species surveys .
Conduct wetland functions and values assessments, stream assessments utilizing the Unified Stream Methodology, and perennial flow determinations.
Conduct Chesapeake Bay Critical Area and/or Resource Protection Area delineation.
High degree of self-motivation and the ability to work independently with limited supervision, as well as in a collaborative team environment
Perform very detailed work in a highly organized manner
Self-motivated, driven, and hard working
Mentor junior staff into lead roles.
Work directly with internal team members including project managers, engineers, planners, and junior staff, and with contractors, regulatory officials, and clients.
Write NEPA document sections (e.g. soil, water, wildlife, etc.) for CATEX, EA, and/or EIS documents.
Support additional environmental documents such as state environmental assessments, permit by rule, SCC applications, water quality impact analysis, and VDOT LAP due diligence summaries.
Ability to travel several days consecutively per month, some overnight travel required.
Proposal preparation.


Qualifications

Minimum Requirements


BA/BS degree and 4 years of relevant experience or demonstrated equivalency of experience and/or education
Writing samples required that demonstrate you served as lead author on including wetland delineation reports, permit applications, and/or T&E; habitat assessments/survey summaries.
Must be willing and capable of working in the field at times in inclement weather conditions, walking in uneven terrain and carrying some equipment that may weigh up to 15 lbs.
Valid Driver’s License required with a good driving record
Due to the nature of the work, US Citizenship is required


Preferred Qualifications


BA/BS degree in an environmental science related field (such as but not limited to ecology, botany, forestry, soil science, and wildlife biology) is preferred
6 years of experience performing wetland delineations independently and leading field teams desired
PWS certification helpful
Wetland delineation and permitting experience in Maryland and/or Virginia desired
VWP Permit Monitoring experience
MD FCA Qualified Professional
ArcGIS experience and data collection tools such as Collector, Trimble units, and others.


Additional Information


This is a hybrid role with 70% in office/remote work and 30% field work.
Relocation support is not available for this position
Sponsorship is not available for this position
All your information will be kept confidential according to EEO guidelines.


With infrastructure investment accelerating worldwide, our services are in great demand, and there’s never been a better time to be at AECOM! Join us, and you’ll get all the benefits of being a part of a global, publicly traded firm – access to industry-leading technology and thinking and transformational work with big impact and work flexibility.

AECOM provides a wide array of compensation and benefits programs to meet the diverse needs of our employees and their families. We also provide a robust global well-being program. We’re the world’s trusted global infrastructure firm, and we’re in this together – your growth and success are ours too.

As an Equal Opportunity Employer, we believe in each person’s potential, and we’ll help you reach yours.

Join us and let’s get started.

ReqID: J10081471

Business Line: Environment

Business Group: DCS

Strategic Business Unit: East

Career Area: null

Work Location Model: Hybrid

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