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ASSYSTEM Logo ASSYSTEM · Consulting

Senior Ecologist

United Kingdom, London · Job Posted May 05, 2026
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Job Description

Are you an experienced ecologist ready to lead projects, shape best practice and support the growth of a high-performing team? At Assystem UK, you will take on a senior, client-facing role that combines technical delivery with team leadership and commercial awareness across major infrastructure and development schemes in the UK.

Job Responsibility

  • Lead ecological surveys and assessments, including habitat appraisals, protected species surveys and impact evaluations
  • Oversee ecological input into housing, infrastructure, renewables and energy projects
  • Prepare and review high-quality technical reports, including EIAs, HRAs, mitigation strategies and Biodiversity Net Gain assessments
  • Monitor construction activities to ensure compliance with wildlife legislation and licence conditions
  • Support and lead protected species mitigation strategies and EPS licence applications
  • Investigate ecological incidents and implement proactive risk management measures
  • Deliver ecological briefings and provide clear, practical advice to site teams and project managers
  • Lead, mentor and support ecologists at senior, mid-level and junior grades
  • Align team resourcing with project demands, managing workloads and supporting recruitment where required
  • Champion best practice in ecology, health and safety, quality assurance and legislative compliance
  • Contribute to the continuous improvement of technical standards and delivery processes
  • Support work-winning activities including tenders, fee proposals, client presentations and framework bids
  • Monitor project budgets, programme delivery and resource forecasts
  • Contribute to practice growth plans aligned with wider business objectives
  • Build strong relationships with clients, regulators and collaborators, acting as a trusted senior contact

Requirements

  • A degree in Ecology, Environmental Science or a related discipline, supported by significant experience in applied ecological consultancy
  • Two European Protected Species licences
  • Strong knowledge of UK wildlife legislation, planning policy and best practice including EIA, HRA and BNG
  • Experience managing teams, budgets and multidisciplinary project delivery
  • Membership of the Chartered Institute of Ecology and Environmental Management, with Full Membership to be obtained if not already held
  • Excellent commercial awareness, business planning insight and client engagement skills
  • Strong report writing, communication and leadership capabilities
  • A full UK driving licence and willingness to travel to project sites

Nice to have

  • Extensive Ecological Clerk of Works experience on infrastructure or construction sites
  • Experience in Biodiversity Net Gain assessment and UKHab habitat classification
  • A strong professional network within the ecology and infrastructure sectors
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