Technical Director - Wastewater

Tetra Tech; Glasgow; Hybrid; GBP 90,000 - 130,000; Full time

Job summary

Tetra Tech is seeking a Technical Director in Glasgow/Edinburgh to lead wastewater asset planning and hydraulic modelling. This senior role focuses on delivering high-quality outputs, developing new opportunities, and mentoring teams across UK and international projects.

You will engage with clients and industry bodies, advancing technical standards and shaping service development while representing Tetra Tech at events and forums.

Qualifications

• A relevant degree is essential.
• A higher degree in a water-related subject and Chartered or Incorporated status (ICE or CIWEM) would be advantageous.
• Sound knowledge of the water industry, regulatory standards, and significant experience in wastewater asset planning and hydraulic modelling.

Responsibilities

• Provide technical leadership across wastewater asset planning and hydraulic modelling projects.
• Mentor colleagues and support project teams with expert guidance.
• Develop long-term business strategy and opportunities within the sector.

Skills

Technical leadership

Client influence

Innovation

People development

Industry awareness

Education

Degree essential

Higher degree advantageous

ICE/CIWEM status advantageous

Tools

MS Office

Job description

Shape the future of wastewater strategy and modelling at Tetra Tech

Join Tetra Tech as a Technical Director and help shape the future of our Wastewater Asset Planning and Hydraulic Modelling capability. This is a high-profile leadership role for an experienced technical specialist who can drive excellence, influence industry thinking and support the delivery of important projects for clients across the UK and internationally.

Purpose and scope of the role:

Working closely with the Water Consulting Directors, you will provide technical leadership across wastewater asset planning and hydraulic modelling projects, with a strong focus on quality, innovation and client confidence. You will lead distinctive consultancy commissions, support project teams with expert technical guidance and contribute to the development of long‑term business strategy.

The role also includes building strong relationships with clients, partners and industry stakeholders, representing Tetra Tech through conferences, publications and professional forums. You will help identify future market needs, shape service development and play a key role in strengthening our technical capability and talent base across the team.

Your impact in this position:

This is an excellent opportunity for someone ready to step up into a Technical Director role and make a real impact. In the short term, you will support key projects and client meetings while contributing to the Technical Excellence Group.

In the medium term, you will help develop new opportunities, expand our wastewater asset planning and hydraulic modelling offer and mentor talented colleagues. Over time, you will be recognised as a thought leader in the sector, helping Tetra Tech stay ahead of industry change and secure long‑term frameworks and strategic work.

Core Capabilities:

• Technical leadership and project delivery - Strong technical authority in wastewater asset planning and hydraulic modelling consultancy, with the ability to lead complex projects, advise delivery teams and deliver high‑quality outputs.
• Client and stakeholder influence - Confidence engaging senior client representatives, presenting ideas clearly and building trusted relationships that support long‑term business development.
• Innovation and technical excellence - A proven record of introducing improved methods, tools and best practice, and promoting consistent technical standards across teams.
• People development and collaboration - Ability to mentor, support and motivate colleagues, share expertise and help strengthen team capability at intermediate and senior levels.
• Industry profile and strategic awareness - Active engagement with professional bodies and technical forums, with the ability to identify emerging challenges, shape future services and contribute to thought leadership.

Skills, qualifications and experience:

A relevant degree is essential. A higher degree in a water‑related subject and Chartered or Incorporated status, preferably with ICE or CIWEM, would be advantageous.

You should have sound knowledge of the water industry, including regulatory and compliance standards, along with significant experience in wastewater asset planning and hydraulic modelling approaches. A strong track record in technical innovation and development is essential, together with excellent written, verbal and presentation skills. You will also need strong MS Office capability, the ability to manage your own time and the confidence to work independently and through others. A full UK driving licence is required.

Work patterns and locations:

This is a permanent role based in Glasgow or Edinburgh and can be offered on a hybrid basis. The position will involve attendance at client meetings, industry events and Tetra Tech offices as required to support collaboration, project delivery and business development.

Why join Tetra Tech?

Tetra Tech is a leading provider of consulting and engineering services working across the full project lifecycle worldwide. We have a wide range of expertise across our teams, providing a global support network with a personalised approach to client relationships to better understand where we can add value. We provide a collaborative environment that supports individual performance, innovation, and creativity.

We support public and private sector clients on local, national, and international projects to deliver sustainable and resilient solutions. Our operations in the UK, Ireland, and the Netherlands include more than 6,000 employees who are Leading with Science to solve our clients' most complex problems.

In alignment with the Equality Act 2010, we will make reasonable adjustments to support candidates and employees requiring additional arrangements. This could include adaptations to work schedules, training approaches, or the physical workspace. Please inform us if you need any accommodations during the recruitment process or in your day-to-day role.