Allen & York
Senior/Principal Marine Ecologist

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Senior or Principal Marine Ecologist
Contract | Bristol / Hybrid | Marine & Defence
I'm currently recruiting for an exciting Senior or Principal Marine Ecologist contract opportunity with a leading organisation supporting complex environmental projects across the defence and marine sectors.
This is a specialist role for an experienced marine ecologist with strong Habitat Regulations Assessment (HRA) experience, who can provide senior technical input across coastal and marine trials, operations and infrastructure.
The Role
You'll lead and deliver high-profile environmental assessments, providing specialist advice across complex consenting, environmental risk and regulatory compliance challenges.
Your responsibilities will include:
- Leading and quality assuring HRAs, including screening, Appropriate Assessments and tests of likely significance
- Providing technical input into marine ecology assessments, Sustainability Appraisals and Marine Licences
- Designing and overseeing marine surveys covering intertidal, subtidal, benthic, fish and marine mammal environments
- Interpreting complex ecological datasets and producing robust technical conclusions
- Providing specialist ecological advice around defence trials, in-water works, vessel operations and marine noise/sonar impacts
- Advising on environmental constraints associated with SPAs, SACs, MCZs and SSSIs
- Supporting Environmental Management Plans, operational environmental risk and protected species compliance
- Building relationships with clients, regulators, statutory nature conservation bodies and other stakeholders
- Preparing and presenting technical reports, briefings and presentations to technical and non-technical audiences
Reasons to use Rodeo
I’m in my final year doing Economics and I don’t know whether to apply for grad schemes now or do a masters first. What do you think?
Honest answer — it depends on where you want to end up. A lot of top grad schemes (Big 4, civil service, banking) don’t need a masters. Let’s look at the ones you’d be competitive for now, and we can decide if a masters actually adds anything.
Also worth knowing: most autumn 2026 applications are open now. Timing matters more than you think.
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Graduate Consultant — 2026 Scheme
Why you're a good match
StrongYour economics background and your summer at a regional bank line up with what PwC looks for on the consulting scheme. Applications close in four weeks.
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Why you're a good match
You’ve got the grades and the economics background, and your bank internship is exactly the experience this scheme looks for. Apply soon — deadlines close within the month.
Experience fit
Your summer at the bank plus your econometrics coursework map directly to the day-one responsibilities on this scheme — client modelling, market briefings, and deal support.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
What I'm Looking For
I'm particularly interested in speaking with marine ecology professionals who have:
- A relevant degree in Marine Biology, Ecology, Environmental Science or a related discipline
- Extensive experience delivering and leading HRAs for marine or coastal projects
- Experience completing Level 2 Appropriate Assessments and complex project-level HRAs
- Strong knowledge of marine protected areas and UK protected species and habitats legislation
- Experience with marine noise, disturbance, water quality and habitat loss pathways
- Proven experience preparing, reviewing and quality assuring technical reports
- Strong stakeholder management and client-facing skills
- Experience working with defence clients, ideally MOD, DIO, Royal Navy or defence contractors
- CIEEM membership and/or Chartered Environmentalist status


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This role would suit someone who enjoys working at the point where marine ecology, regulation, defence operations and complex environmental assessment meet.
📍 Bristol / Hybrid
💷 Competitive package
📄 Contract opportunity
If you have the HRA and marine ecology background I'm looking for, I'd be keen to have a confidential conversation.
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