WSP in the UK & Ireland
Senior Wastewater Process Engineer
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
Senior Wastewater Process Engineer
Senior Wastewater Process Engineer – WSP
About the Role
What if you could shape a career as unique as you?
At WSP, you can always find opportunities to grow and do what matters to you. Make the most of our global reach to discover new challenges and work with diverse, talented individuals who will help you expand your horizons.
An opportunity has arose for an experienced Senior Wastewater Process Engineer to join our Water Engineering teams located in Birmingham, Bristol, Manchester, Liverpool, London, Newcastle or Glasgow.
Working within various multidisciplinary project design teams, you will take a key role in delivering process engineering design content across a range of challenges in water engineering, including wastewater and water reuse projects throughout the UK and overseas. Your responsibilities will span from feasibility and concept development through to delivering detailed designs for procurement, construction, and reviewing supplier proposals.
As an experienced Wastewater Process Engineer, you will collaborate within project teams to deliver effective and professional services for diverse and high-profile clients.
Key Responsibilities
-
Produce process design deliverables such as:
- Optioneering studies
- Process calculations & mass balances
- Process flow diagrams
- Piping and instrumentation drawings & sketches
- Basis of design reports
- Review and input on supplier proposals
-
Undertake outline or detailed process engineering design
-
Conduct site visits for data acquisition and operational meetings
-
Provide technical input to procurement processes
-
Support Project Managers in client technical discussions
-
Engage with technology providers and vendors
-
Participate in HAZOP, HAZID, ENVID, and SWIFT sessions
-
Offer technical guidance, coaching, and supervision to junior staff
-
Collaborate across multi-disciplinary project teams, integrating process engineering needs within time, cost, and quality constraints
-
Contribute to proposals, project scopes, schedules, and budgets
-
Ensure client expectations (both internal and external) are understood and met
Reasons to use Rodeo
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.
It 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.
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.
Qualifications & Registration
You’ll need to demonstrate:
- A Chemical or Environmental Engineering degree (or equivalent)
- CEng (Chartered Engineer) status (or commitment to achieving it within 12 months of hire)
Essential Experience & Skills
- Significant experience in process engineering design for infrastructure projects, including leadership roles in process design
- Proven expertise in the municipal water industry (or relevant industrial expertise)
- Ability to prepare/review process design deliverables (technical specs, calculations, reports, P&IDs, mass balances, procurement documentation) independently
- Experience delivering studies, feasibility, conceptual, FEED, and detailed designs in wastewater treatment, covering:
- Primary (screens, grit removal)
- Secondary (ASP, MBBR, MBR)
- Tertiary (filtration, clarification, chemical dosing, P removal)
- Knowledge of circular economy principles and Zero Liquid Discharge (ZLD) systems
- Consultancy or professional services experience in a process engineering role
- Strong technical written and verbal communication skills
- Ability to:
- Present complex ideas clearly and professionally to colleagues, clients, and subcontractors
- Lead multi-disciplinary team meetings (in-person or virtual)
- Engage as the technical representative for external clients
- Willingness to travel and site visit operational works and construction sites
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Note: If you don’t meet all criteria, we still encourage your application—you might possess skills we haven’t listed here.
Why Join WSP?
We believe in readying the future, here’s what it means for you:
Flexible & Inclusive Work Environment
- Hybrid working (2 in-office days per week) balanced with remote flexibility
- Diverse, inclusive culture with employee resource groups fostering belonging
- Equal opportunities for all (disability confident leader), with reasonable workplace adjustments
Health & Wellbeing
- Thrive Programme for holistic health support
- Virtual GP access (24/7 NHS/Irish Medical Council coverage)
- Gymflex (40% discount on gym memberships)
- Comprehensive menopause support
Flexible Time Management
- WSP My Hour: Daily 1-hour day-block for personal needs (flexible make-up)
- Part-time and flexible working options
- Buy/sell leave policy and discretionary holiday management
Career Growth & Development
- Focus on mentoring and professional accreditation (e.g., Chartership)
- Continuous learning opportunities
ॐ #WSP – Imagine a better future for you, and a better future for all.
Join landmark projects globally, leave a meaningful legacy, and do your best work yet. Apply today.
About Us
WSP is a world-leading engineering and professional services firm with over 11,000 professionals across the UK and Ireland. We unite through a culture of innovation, integrity, and inclusion, delivering enduring, positive impacts on the communities we serve. From local projects to international collaboration, we’re powered by a shared purpose—building a better world through engineering excellence.
“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
Skills
Location