Work with Us. Change the World.

At AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.

There has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 52,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.

We're one global team driven by our common purpose to deliver a better world. Join us.

We seek a Biodiversity Specialist with strong field and desktop experience to join our established ecology team. You will help deliver innovative, high‑impact projects that advance nature-positive outcomes and support clients in meeting biodiversity commitments across Spain and internationally.

What you will do:

• Plan and deliver field surveys in Spain and abroad to identify, monitor, and quantify biodiversity (habitats, fauna, and vegetation).
• Support the preparation of biodiversity deliverables: writing, literature reviews, data analysis, and inputs to business development activities.
• Draft biodiversity sections for Environmental Impact Assessments and environmental integration appendices.
• Advise clients on biodiversity risks, opportunities, and disclosure, and present assessment results to technical and non-technical audiences.
• Contribute to innovative services and tools, including environmental DNA (eDNA), Nature-based Solutions, and biodiversity crediting approaches.
• Prepare applied biodiversity management reports (e.g., species conservation plans, habitat restoration plans) and conduct ecosystem services valuation.
• Design mitigation hierarchy measures, including actions targeting a net positive impact on biodiversity.

Why join our biodiversity team:

• Work on cutting-edge, multidisciplinary nature projects that drive measurable outcomes for biodiversity.
• Collaborate with passionate environmental consultants in a supportive, growth-oriented team.
• Develop your technical and consulting skills through diverse assignments and knowledge-sharing.

• Bachelor’s and Master’s degree in Environmental Sciences or Biology (specialization in biodiversity).
• 3+ years of relevant experience in biodiversity/ecology; consulting experience is desirable.
• Strong knowledge of Iberian biodiversity, particularly habitats and fauna (birds, mammals, others).
• Excellent written and verbal communication skills.
• Fluency in Spanish and English (spoken and written).
• Willingness and ability to travel as required.
• Commitment to quality, ethical practice, teamwork, and continuous learning.
• Familiarity with GIS software (ArcGIS, QGIS).
• Primary focus in Spain with potential for international fieldwork and collaboration.
• Field assignments may require periodic travel and flexible schedules aligned to survey windows.
• Ensure the necessary functional capacity for performing the duties specific to the position (this will be assessed at the beginning of employment through a medical examination).
• Driver's license (B). 

Highly valued:

• Experience with camera trapping, bioacoustics, and ultrasonic detectors.
• Hands-on experience with biodiversity metrics and positive impact accounting.
• Experience applying eDNA methods and working with Nature-based Solutions and/or biodiversity credit mechanisms.
• Proficiency with data analysis and visualization tools to support ecological assessments.

At AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.

About AECOM 

AECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan. 

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com. 

What makes AECOM a great place to work 

You will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity. 

As an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines.