Principal Process Engineer (Water)

Sweco; Peterborough; Hybrid; GBP 95,000 - 130,000; Full time

Benefits offered by this job

Flexible and hybrid working (Flexworks

Competitive pension contribution

Life Assurance

Private Medical Insurance

Company car or car allowance

Discretionary Annual Bonus Scheme

Professional subscriptions paid

25 days holiday + bank holidays (up to

Cycle-to-Work Scheme

Employee Assistance Programme

Employee discounts via Sweco Benefit

Salary Sacrifice Electric Vehicle

Tree planting for new starters

Job summary

Sweco, a partner in the Anglian Water @one Alliance, is seeking a Principal Process Engineer to lead process design and provide directions to engineers, ensuring compliance with standards and project goals.

You will oversee design work, mentor staff, and drive innovation and sustainability across projects in a collaborative, hybrid working environment.

Qualifications

• Engineering degree in Chemical, Mechanical, or Process Engineering or equivalent.
• Chartered status or working towards chartership.
• Extensive water sector experience, with process design and capital delivery projects.
• Thorough knowledge of regulations, standards and environmental requirements.
• Proven track record mentoring junior engineers.
• Experience in a Design & Build environment is advantageous but not essential.
• Strong leadership, communication and decision‑making with a collaborative approach.
• Commitment to sustainability and reducing environmental impact of engineering solutions.

Responsibilities

• Lead and manage quality through the process design workflow to deliver projects on time and within cost.
• Review mass balances, process sizing, hydraulic calculations, P&IDs and process flow diagrams for accuracy.
• Address construction queries to maintain design integrity.
• Support Design Managers with planning and stakeholder engagement for process design acceptance.
• Provide technical input for supplier contracts and deliverables review.
• Champion health, safety, and welfare to comply with process standards and hazardous area regulations.
• Mentor and develop junior engineers.
• Embrace innovation and digital technologies to reduce carbon in design.
• Participate in wider Anglian Water initiatives like HAZOPs and standards forums.

Skills

Leadership

Mentoring

Communication

Decision-making

Collaborative approach

Sustainability mindset

Education

Engineering degree (Chemical/Mechanical/Process) or equivalent

Chartered status / working towards chartership

Job description

About the @one Alliance
The Anglian Water @one Alliance is a collaborative organisation comprising nine partner companies (Anglian Water, SWECO, Balfour Beatty, Barhale, Binnies, MMB, MWH Treatment, and Skanska) and an extended supply chain, delivering over half of Anglian Water’s capital investment programme. We are gearing up for our most ambitious Asset Management Period yet – AMP8 – which will focus on nature‑based solutions such as wetlands and urban drainage schemes.

About Sweco
We design and plan sustainable communities and cities of the future, harnessing digitalisation to address urbanisation challenges and promote sustainability.

Role Summary
As a Principal Process Engineer, you will lead technical design and provide direction to process engineers, ensuring deliverables meet standards, regulations, and project outcomes.

What You’ll Be Doing

• Lead and manage quality through the process design workflow to deliver projects on time, within cost, and to quality standards.
• Review mass balances, process sizing, hydraulic calculations, P&IDs, process flow diagrams, and other design documentation to ensure technical accuracy and compliance.
• Check construction site design queries and change requests to provide prompt, accurate responses and maintain design integrity.
• Support Project Design Managers with design planning and stakeholder engagement for process design acceptance.
• Provide technical input for supplier contracts and deliverables review.
• Champion health, safety, and welfare, ensuring all designs comply with process standards and hazardous area regulations (DSEAR).
• Mentor and develop junior engineers, fostering professional growth and promoting best practice.
• Embrace innovation and digital technologies to drive continuous improvement and reduce carbon impact in design.
• Participate in wider Anglian Water initiatives such as HAZOPs, technical standards forums, and emergency response activities.

About You

• Engineering degree (Chemical, Mechanical, or Process Engineering) or equivalent experience.
• Chartered status or working towards chartership.
• Extensive experience within the water sector, particularly in process design and capital delivery projects.
• Thorough knowledge of relevant regulations, standards, and environmental requirements.
• A proven track record of mentoring and developing junior engineers.
• Experience in a Design & Build environment is advantageous but not essential.
• Strong leadership, communication, and decision‑making abilities with a collaborative approach.
• A genuine commitment to sustainability and reducing the environmental impact of engineering solutions.

Employee Benefits

• Flexible and hybrid working (Flexworks Policy)
• Competitive pension contribution
• Life Assurance
• Private Medical Insurance
• Company car or car allowance
• Discretionary Annual Bonus Scheme
• Payment of two relevant professional subscriptions
• 25 days holiday plus bank holidays (option to purchase up to 5 additional days per year)
• Cycle‑to‑Work Scheme
• Employee Assistance Programme (wellbeing, mental health, financial and work advice)
• Employee discounts via Sweco Benefit Select (Faircare)
• Salary Sacrifice Electric Vehicle Scheme
• We plant a tree for all new starters!

Equal Opportunity & Diversity

We encourage applications from all suitably qualified and eligible candidates regardless of sex, race, disability, age, sexual orientation, religion, marital status, or any other protected characteristic. We are committed to equality, inclusivity, and diversity in all aspects of our organisation.