Thomson environmental consultants
Principal Technical Specialist

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Principal Technical Specialist - Water Team
Join us in shaping a future where nature and business thrive together
At Thomson, our purpose is simple but powerful: to enable nature and business to thrive together.
We're building a reputation as the UK's most innovative, pragmatic and fast-growing environmental consultancy. Our ambition is to be the first choice for clients and the employer of choice for environmental professionals.
With offices across the UK, our multidisciplinary experts deliver exceptional outcomes across terrestrial and freshwater ecology, hydrology, marine science, GIS, habitat management, arboriculture and environmental impact assessment.
The Opportunity
We are seeking a Principal Technical Specialist to lead and grow our dynamic Water Team.
This is a key leadership role where you will combine technical expertise, team leadership and business development to deliver complex aquatic projects and shape the future of our water services.
You will work closely with clients and colleagues to provide best-practice advice, ensure compliance with legislation and policy, and support the successful delivery of high-quality environmental outcomes.
What You'll Be Doing
Leadership & Team Development
Manage team workloads, performance, training and development Provide technical oversight, mentoring and internal training Support colleagues in achieving their professional goals
Technical Delivery
Lead and deliver large, complex hydro-ecological projects Provide expert guidance on legislation, policy and best practice Review and approve technical reports and deliverables
Project & Financial Management
Oversee budgets, forecasting and team financial performance Ensure projects are delivered on time, within budget and to a high standard
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.
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
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.
See breakdownIt searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
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.
Business Development
Win new work through bids, tenders and client engagement Build and maintain strong client relationships Support marketing and PR activity to promote water services
Example Projects & Deliverables
Field & Survey Work
Preliminary Ecological Appraisals and Ecological Clerk of Works Macroinvertebrate and water quality monitoring Fish population and habitat surveys eDNA and INNS surveys River habitat surveys, flow gauging and water level monitoring
Environmental Assessments
Nutrient neutrality assessments Water Framework Directive (WFD) assessments Habitats Regulations Assessments (HRA) Environmental Impact Assessments (EIA) Marine licensing and flood risk permitting
Essential Experience
What We're Looking For
Principal-level experience in environmental consultancy Strong background in aquatic ecology, hydro-ecology or similar Proven experience managing and developing staff Track record of winning work and building client relationships
Technical Expertise
Strong knowledge of hydro-ecological survey techniques, legislation and policy Experience delivering high-quality reports and assessments
Skills
Excellent communication and organisational skills Ability to manage people, budgets and multiple projects Proactive, collaborative and solutions-focused approach
Essential:
Full UK driving licence and access to a vehicle with business insurance
Working at Thomson
At Thomson, we strive to be the very best at what we do-for our clients and for each other.
We believe in One Thomson: valuing every individual's unique skills and experiences, and working together to deliver exceptional service.
Our people are our greatest asset. We are proud of our friendly, supportive and can-do culture, where nothing is too much trouble. We live and breathe our RISE values - Respect, Integrity, Support and Excellence-and we are constantly evolving, with your voice helping shape our future.


Get help with your application
Your very own career expert that helps elevate your application to the next level.
We actively promote a healthy work-life balance, offering flexibility and a supportive environment where people can thrive. We embrace new challenges, work collaboratively, and celebrate success together.
We are passionate about career development. You'll have access to:
Industry-accredited external training Specialist-led internal training Opportunities to work across disciplines The chance to contribute to and lead high-profile, once-in-a-lifetime projects
We also offer a competitive benefits package, including:
25 days annual leave Healthcare cash plan Enhanced stakeholder pension scheme Life insurance Discounted gym membership Paid professional memberships Clothing allowance Performance-related rewards and long service awards Free parking Regular social and company events
We are also committed to giving back, with strong involvement in charity fundraising and local community initiatives.
Equality, Diversity & Inclusion
As an equal opportunities employer, Thomson is committed to the fair and equal treatment of all current and prospective employees. We do not tolerate discrimination of any kind.
We are building a diverse and inclusive workplace and strongly encourage applications from individuals of all backgrounds. We believe diversity strengthens our team and enhances the work we do.
Ready to make a difference?
If you're a skilled and motivated professional looking for a role where you can lead, influence and deliver meaningful environmental impact, we'd love to hear from you.
Apply today and be part of Thomson's journey.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
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