Principal / Senior Design Manager – Water & Wastewater AMP8

Overview

In this role, you will lead multidisciplinary design teams on major water infrastructure programmes, shaping technical solutions across wastewater and water treatment projects. You will collaborate with clients and partners to ensure high-quality, innovative delivery while maintaining commercial rigour and strong relationships. You’ll oversee resource planning, support recruitment, and mentor staff to drive quality, safety and sustainability. This is a senior, impact‑driven position within Arcadis’ Water Optimisation team, contributing to AMP8-focused initiatives and long‑term environmental performance.

Responsibilities

• Technically lead and coordinate multi-discipline water and wastewater design projects across the design life cycle
• Collaborate with clients, partners, and supply chain to deliver high-quality, innovative design and positive client experience
• Ensure adequate resource for delivery and assist with strategic recruitment planning
• Partner with Programme Manager and Commercial team to maintain programme controls, profitability and issue resolution
• Provide line management and development support to team members, fostering a high‑quality, entrepreneurial culture
• Promote safety, health, quality and sustainability in all project activities
• Encourage innovation and continuous improvement through engineering technology adoption
• Collaborate with other Arcadis teams to share knowledge and best practices

Key requirements

• Degree in Civil, Mechanical, Electrical, Process Engineering or related field
• Chartered or Incorporated Engineer status (ICE, IMechE, IET, IChemE, CIWEM)
• Extensive water industry experience and complex design/delivery framework exposure
• Strong people management and talent development capabilities
• Proven contract, commercial, project and programme management experience
• Experience with complex design and build projects or delivery frameworks
• Excellent communication skills with diverse stakeholders
• Demonstrated ability to build and sustain high-performing teams
• Digital curiosity or proficiency

• leadership
• communication
• stakeholder management
• design management
• multi-disciplinary coordination
• project and programme management

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