Principal Ecologist wide

About the Role

Jacobs is challenging today to reinvent tomorrow by solving the world’s most critical problems. As a Principal Ecologist on our UK Ecology Team, you will lead ecological assessment and support forward‑thinking projects that have a real impact locally and globally.

The role is based nationwide with opportunities across Birmingham, Bristol, Cardiff, Edinburgh, Glasgow, Leeds, London, Manchester, Newcastle, Peterborough and Reading. Positions are available on a permanent full‑time or part‑time basis, job share or flexible arrangements.

• Deliver major infrastructure projects across water, transport, and energy sectors for clients such as Anglian Water, National Highways, and Network Rail.
• Apply expertise in Environmental Impact Assessment, Habitats Regulations Assessment, and/or Biodiversity Net Gain.
• Collaborate across disciplines, ensuring ecological requirements are integrated into project design and delivery.
• Lead ecological monitoring programmes, manage surveys and ensure high‑quality data collection.
• Provide expert advice as the main point of contact for clients and stakeholders on large‑scale projects.
• Build cross‑functional networks, working with specialists across geographies and cultures to develop effective solutions.
• Mentor colleagues and share knowledge through global communities of practice, conferences, and training events.
• Optionally pursue line‑management responsibilities or focus on technical expertise; progression is supported in both routes.

• Strong background in terrestrial ecology with significant industry experience.
• Chartered membership (or eligibility) of a relevant professional body.
• Proven track record in leading ecological input on large‑scale projects.
• Excellent written and verbal communication skills with sharp attention to detail.
• High level of personal accountability and professionalism.
• Technical specialism in terrestrial ecology or broad experience with the ability to adapt quickly to new areas.

• Hybrid working, part‑time roles, flexible working hours including compressed hours, and annualised hours contracts.
• Company contribution up to 10% into pension.
• Reimbursement for professional development and memberships.
• Well‑being support: free employee medical cover, digital GP service, mindfulness platform, confidential counseling, fitness platform, and financial planning.
• Family and fertility benefits including enhanced parental leave pay, fertility healthcare, and supportive programs for parents and caregivers.
• Access to global employee networks and communities of practice, and a culture of collaboration and sustainability.

Jacobs is an equal opportunity employer. We value safety, integrity, inclusion and belonging, and we welcome applicants from all backgrounds. As a Disability Confident Employer, we will interview all disabled candidates who meet the criteria and invite flexible working applicants. We are committed to building vibrant communities and ensuring every employee has a sense of belonging.