Associate Ecologist

Associate Ecologist

Lead Ecological Growth and Shape Sustainable Development Across London and the South East

Tetra Tech is seeking an Associate Ecologist to join our Ecology team based in London. In this role you will play a leading part in the growth of our ecology business, supporting a diverse portfolio of residential‑led regeneration, commercial development, infrastructure, aviation, data centre, logistics, urban greening and major transport projects across London and the South East.

As an Associate Ecologist, you will lead the delivery of complex ecological projects across a broad range of sectors, providing strategic ecological advice and ensuring the successful delivery of high‑quality technical outputs. You will act as a Project Director or Technical Lead on key commissions, overseeing project teams, managing client relationships and driving commercial performance. You will also play a key role in developing and maintaining client accounts, identifying growth opportunities and supporting business development activities.

• Lead delivery of ecological projects, managing multidisciplinary teams and ensuring technical excellence.
• Serve as Project Director or Technical Lead, overseeing project governance, budgets and commercial outcomes.
• Develop and maintain client accounts, nurture relationships and identify new opportunities.
• Provide mentorship and technical guidance to ecologists at all career stages.
• Collaborate with planners, landscape architects, engineers and environmental managers to navigate planning requirements, Biodiversity Net Gain (BNG), protected species constraints and other environmental considerations.
• Contribute to integrated environmental solutions that support sustainable development and client objectives.

In the short term you will establish strong relationships with existing clients, successfully deliver a portfolio of ecology projects and contribute to regional utilisation and financial performance. As your influence grows, you will expand client relationships, secure repeat business opportunities and improve team capability, efficiency and project delivery. Over the longer term you will shape the strategic direction of the London ecology business and contribute to the successful delivery of nationally significant infrastructure, development and renewable energy projects.

Technical Ecology & Leadership

• Significant experience in ecological consultancy with a strong technical background in Ecological Impact Assessment (EIA), Biodiversity Net Gain (BNG), Habitat Regulations Assessment (HRA), protected species surveys and mitigation.
• Experience providing technical leadership, undertaking complex reviews and ensuring robust, high‑quality ecological advice.

Project & Commercial Management

• Proven ability to manage complex, profitable projects, balancing programme delivery, budget management, forecasting, contract administration and commercial risk.
• Leadership of multidisciplinary project teams and achievement of agreed quality, financial and programme objectives.

Client Relationships & Business Development

• Strong relationship‑building skills with experience developing client accounts, identifying growth opportunities and contributing to work‑winning activities.
• Commercial mindset and confidence to represent the business externally and support strategic growth initiatives.

Leadership & People Development

• Passionate about developing people and fostering a collaborative culture.
• Mentoring, coaching and technical guidance to ecologists at all levels, promoting high standards of performance, inclusion and professional development.

Strategic Collaboration & Environmental Excellence

• Effective collaboration across multidisciplinary teams, driving continuous improvement and supporting innovation within the ecology service.
• Combining technical excellence with strategic thinking to deliver positive outcomes for clients, communities and the environment.

• Degree or higher qualification in Ecology, Environmental Science, Biological Sciences or a related discipline.
• Eight or more years of…