Infrastructure Engineer - @One Alliance

Mott Macdonald; Cambridgeshire and Peterborough; On-site; GBP 40,000 - 60,000; Full time

Job summary

A leading engineering consultancy in the UK is seeking an experienced Infrastructure Engineer to join their team. This position offers the opportunity to work on sustainable and efficient water and wastewater solutions. The ideal candidate will contribute to innovative engineering solutions while collaborating with multidisciplinary teams. A degree in Civil Engineering is preferred, along with strong engineering knowledge in wastewater design. The role includes responsibilities such as developing designs, producing technical drawings, and maintaining effective communication across project interfaces.

Benefits

Annual bonus schemes

Paid leave for maternity and adoption

Access to Private Medical Insurance

Qualifications

• Apply engineering knowledge in potable and wastewater design, including pipeline design.
• Understand and incorporate various pipeline construction methods.
• Actively working towards Chartered Engineer status is desirable.

Responsibilities

• Develop designs from feasibility through to detailed design.
• Produce and interpret technical drawings and design sketches.
• Collaborate closely with internal teams and stakeholders.

Skills

Engineering knowledge in potable and wastewater design

Experience in capital projects within the water sector

Strong understanding of infrastructure design calculations

Effective communication skills

Education

Degree in Civil Engineering (BEng or MEng/MSc, minimum 2:1)

Job description

Mott MacDonald Bentley are recruiting for an Infrastructure Engineer to join the Anglian Water @One Alliance. As part of Anglian Water's @one Alliance, we are on a mission to create a sustainable and resilient future for water. With an ambitious £2.3 billion capital investment in AMP8, we are revolutionising infrastructure, sustainability, and digital transformation to protect the environment and support growing communities. Why join us? Join our team as an Infrastructure Engineer and play a key role in shaping sustainable and efficient water and wastewater solutions. You'll be part of a collaborative Design and Build environment, working closely with internal teams and external partners from feasibility through to detailed design. This is a chance to contribute innovative, cost‑effective engineering solutions that make a real impact while growing your expertise in a supportive and forward‑thinking setting.

• Apply engineering knowledge in potable and wastewater design, including pipeline design, and relevant British/Eurocode standards.
• Develop designs from feasibility and optioneering through to detailed design, ensuring technical quality and compliance.
• Understand and incorporate various pipeline construction methods, ancillary components, and GIS tools where applicable.
• Produce and interpret technical drawings and design sketches; contribute to specifications, proposals, and schedules.
• Implement health and safety principles in design, including Design Risk Assessments and Pre‑Construction Information (PCI) files.
• Support project delivery by reviewing technical work, maintaining documentation standards, and addressing contractor queries.
• Collaborate closely with internal teams and stakeholders to ensure seamless project interfaces and promote technical innovation.
• Communicate effectively across all levels to uphold design integrity, manage risks, and ensure successful project outcomes.
• Experience working on capital projects within the water sector is highly desirable.
• A degree in Civil Engineering (BEng or MEng/MSc, minimum 2:1) from a recognised university is preferred, though not essential.
• Strong understanding and practical experience in infrastructure design calculations, including pipework, thrust blocks, manholes, shaft tanks, and attenuation structures, using British Standards, Eurocodes, and industry guidance (e.g., CIRIA, BRE).
• Familiarity with Design & Build project environments is an advantage.
• Actively working towards Chartered Engineer status (e.g., CEng MICE) with a relevant professional institution is desirable.

This is a Mott MacDonald Bentley role, employed by Mott MacDonald.

Mott MacDonald Bentley is a joint venture business, established in 1999 between civil engineering contractor JN Bentley and global management consultancy, Mott MacDonald. Mott MacDonald Bentley offers fully integrated design and build services to its clients, combining the contracting expertise of JN Bentley and the design specialisms of Mott MacDonald. This role is employed by Mott MacDonald but will involve working across the joint venture business, both with Mott MacDonald and JN Bentley colleagues.

About Mott MacDonald: Mott MacDonald is a global engineering, management and development consultancy. Our purpose is to improve society by considering social outcomes in everything we do, relentlessly focusing on excellence and digital innovation, transforming our clients' businesses, our communities and employee opportunities. A fundamental part of this is respecting each person's differences and striving to meet their needs.

Our values: progress, respect, integrity, drive, excellence. We believe that because we care about what we do, we do things better. We know that our people are our most valuable asset, so we are dedicated to investing in them, through our comprehensive training and development schemes, exposure to the wider design and build business and endless opportunities. We are committed to creating a workplace where our people are safe, have a voice, can reach their full potential, and everyone shares in the rewards.

You'll have the opportunity to contribute to projects that benefit our communities – from helping to secure water supplies for future generations to protecting homes and businesses from flood risk – our projects make a real difference.

At @one Alliance, you'll be part of a dynamic, forward‑thinking team that is shaping the future of the UK's water infrastructure. We offer a collaborative and innovative working environment, where your expertise will be valued and your ideas will drive meaningful change.

What's in it for you

Financial wellbeing

• MMB matches employee pension contributions between 4.5% and 7%.
• As an independently owned business we share the financial success of the business with all our colleagues including our annual bonus schemes.
• Payment of annual professional institution subscription costs.

Health and wellbeing

• A minimum of 33 days holiday each year, inclusive of public holidays, with the ability to buy, sell or carry over annual leave through our flexible benefits programme.
• Access to Life Assurance, Private Medical Insurance, Critical Illness Insurance and Health Screening options.
• We are happy to talk openly about flexible working and how we can support your responsibilities beyond the workplace.
• Join a wide range of groups including our Advanced Employee Networks which support our LGBTQ+, gender, race and ethnicity, disability, and parents/carers communities.

Enhanced family and carers leave

• Enhanced family leave policies, including 26 weeks paid maternity and adoption leave, and two weeks paid paternity/partner leave plus the option for shared parental leave.
• Up to 2 paid additional days leave are provided for those with significant caring responsibilities.

Learning and development

• MMB is committed to empowering our people to grow professionally and thrive in their careers. We offer structured development schemes that support your journey toward professional chartership. From day one, employees are fast‑tracked towards chartership reviews and benefit from mentorship, hands‑on experience, and tailored training opportunities.