Lead Process Engineer - Associate Director - Water

Lead Process Engineer - Associate Director - Water Sector

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Ayesa is a global, forward-thinking engineering and technology consultancy with 13,000 employees in 23 countries. We are committed to diversity, inclusion, equity, and sustainability — values that drive our innovation and growth across infrastructure, water, transport, energy, and environmental sectors.

🚀 The Opportunity

We’re looking for a Lead Process Engineer – Associate Director to join our Water Infrastructure Team within the UK, taking a key technical and leadership role in the design, coordination, and delivery of process engineering solutions across water, wastewater, sludge treatment centres, biological and utilities projects. You’ll help shape strategies, mentor engineers, and drive excellence from concept through to commissioning.

📋 Key Accountabilities

• Deliver robust, efficient, and compliant process design solutions.
• Collaborate effectively within multidisciplinary teams.
• Manage workload, priorities, and project performance.
• Ensure adherence to Ayesa’s Integrated Management System (IMS).
• Represent Ayesa professionally, building strong client relationships.

🧠 What You Bring

Experience & Qualifications

• 10+ years’ experience in water, wastewater, or industrial effluent treatment design.
• Chartered Engineer (CEng) status or equivalent.
• Degree in Chemical, Process, or Environmental Engineering (Master’s desirable).

Skills & Knowledge

• Deep understanding of water and wastewater treatment process principles.
• Proven ability to develop complete process solutions from concept to detailed design.
• Experience with UK and Ireland industry standards and specifications.
• Skilled in developing PFDs, P&IDs, and conducting process calculations.
• Experience leading HAZOP/HAZID workshops and supporting commissioning activities.
• Strong leadership, coordination, and client engagement skills.
• Familiarity with BIM, digital design, and sustainable engineering practices.

🎁 What’s In It for You

✅ Competitive salary and benefits package.

🏡 Hybrid and flexible working (2–3 days from home).

💰 Pension matching, income protection, and life assurance.

📚 Professional development and chartership support.

🌱 Sustainability and innovation-focused culture.

🎉 Socials, recognition awards, and wellbeing initiatives.

🌴 Generous annual leave with additional days based on service.

🤝We’re Inclusive by Design

Ayesa is proud to be an equal opportunity employer. We value and celebrate diversity in all its forms, including but not limited to age, disability, gender identity, race, religion or belief, sex, sexual orientation, and socio-economic background or neurodiversity. We believe that a diverse workforce fosters innovation and stronger outcomes. We are committed to inclusive hiring practices, providing reasonable adjustments for applicants and employees with disabilities, and ensuring equal access to opportunities for learning, development, and progression across our organisation.