Senior Ecologist (Ashwell, Hertfordshire)
We're looking for experienced Ecologists, from those with a minimum of four years' experience, ideally more, up to Principal level, to join our friendly and highly skilled team in Hertfordshire.
CSA Environmental is an independent, multidisciplinary consultancy of 85 people across five offices. Our Ashwell team of 14 ecologists, that forms part of a wider team of 50+ ecologist across the business, have built a strong reputation across the south east and home counties for providing clear, reliable ecological advice, and for encouraging clients to go beyond standard expectations.
We are proud to hold the Great Place to Work certification (2026), independently awarded based on our team's own feedback. It reflects what we've always believed: that good work comes from people who feel valued, trusted and supported to grow.
Ecology is not about compliance, it's increasingly the discipline that shapes how development land is planned, designed and valued.
At CSA, we take that seriously.
We actively encourage clients to look beyond mandatory requirements and to think about what genuine long-term biodiversity improvement looks like on their sites. That ambition runs through our project work, our habitat bank schemes, and the advice we give at every project stage.
As a member of the senior ecology team, you’ll be part of a practice that works this way by design. You’ll work closely with colleagues in landscape architecture, heritage, urban design, arboriculture and masterplanning, a cross-disciplinary environment that deepens ecological knowledge and produces better outcomes for clients and for nature.
What you'll be doing
- Coordinating and delivering ecological inputs across all project stages, from initial assessment through to implementation and monitoring
- Leading and supporting protected species surveys and mitigation strategies
- Preparing and reviewing PEAs, EcIAs, HRAs, BNG assessments and related reporting
- Delivering BNG assessments and contributing to habitat bank schemes - work that sits at the forefront of how the profession is evolving
- Working closely with clients, LPAs and design teams to develop balanced, proportionate solutions
- Providing technical input during concept design and planning stages
- Mentoring and supporting junior ecologists in the team
- Contributing to CSA's reputation for high-quality, pragmatic advice in the region
Examples of types of project you could be working on:
- Greenfield residential and mixed-use development
- Brownfield regeneration and mineral extraction sites
- Solar and renewable energy projects
- Habitat bank schemes and biodiversity enhancement programmes
- Landscape-scale ecological improvement projects
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Senior Ecologist (Ashwell, Hertfordshire) employer: Csa Environmental
CSA Environmental is an exceptional employer located in the picturesque town of Ashwell, Hertfordshire, offering a dynamic work culture that prioritises flexibility and employee well-being. With a strong commitment to professional development, we provide our team with ample opportunities to grow their careers while making a significant impact on biodiversity and ecological planning. Join us to be part of a supportive community dedicated to creating meaningful ecological solutions.
