Senior Estimator

JN Bentley is a leading UK engineering and construction company delivering critical infrastructure across the water, environmental and energy sectors through long‑term, collaborative frameworks. As part of the Mott MacDonald Group, we provide clients with a fully integrated design and build services across England, Wales and Scotland. With an annual turnover exceeding £600m and a strong, growing order book, we offer long‑term career opportunities within a stable and forward‑looking business.

We are seeking an Estimator or Senior Estimator to join our high‑performing Bidding and Estimating team and play a pivotal role in shaping how major infrastructure projects are secured and delivered. Based from either our Shifnal or Newport office, you will work at the front end of projects - collaborating closely with design, commercial and operational teams to develop smart, competitive and deliverable cost-effective solutions.

The role offers exposure to a diverse portfolio of civil engineering schemes across England, Wales and Scotland, ranging from early‑stage feasibility work and smaller value projects to high value complex, multi‑disciplinary schemes. This is a fantastic opportunity to influence project outcomes, add real value, and see your work translate directly into successful delivery on site.

Who we’re looking for

We are keen to hear from experienced Estimators and Senior Estimators. We would also consider applications from civil engineering professionals who are looking to transition into estimating; for example, Quantity Surveyors, Planners, Engineers and experienced site‑based professionals from the water, environmental and energy sectors. If you bring strong technical knowledge, commercial awareness and a clear understanding of how projects are built, we will support you with structured training, mentoring and development to succeed in an estimating role.

The role will involve:

• Preparing accurate, well‑structured and commercially sound first principle cost estimates for civil engineering and infrastructure projects;
• Working collaboratively with design, commercial, and operational teams to develop robust and competitive tenders;
• Reviewing drawings, specifications and scopes to identify risk, opportunity and value engineering solutions;
• Engaging proactively with the supply chain to secure quotations and inform buildable, market‑tested pricing;
• Supporting bid submissions, reviews and tender clarification meetings;
• Applying consistent estimating standards, systems and governance across all bids.

What you’ll bring

• Experience in estimating or a strong civil engineering background within a construction or infrastructure environment;
• Commercial awareness and high attention to detail;
• A working understanding of NEC forms of contract and procurement processes;
• The ability to analyse complex information and communicate it clearly and confidently;
• A collaborative mindset and a desire to learn, develop and contribute to a high‑performing team.

What we offer

In return, you’ll join a supportive and ambitious business that invests heavily in its people. Alongside a competitive reward package, we offer tailored development and progression aligned to your career goals, backed by the scale and opportunity of the Mott MacDonald Group. Our flexible benefits package allows you to personalise your financial, lifestyle, health and wellbeing benefits to suit what matters most to you.

Other Information

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.

Diversity, Equity & Inclusion

A Mott MacDonald Bentley we welcome applications from all sectors of the community. We are dedicated to building a diverse workplace where everyone feels included, has the opportunity to thrive, and is treated with respect.

Even if you don’t meet every requirement for this role but are excited about the opportunity, we encourage you to apply. Find out more about our approach to Diversity, Equity & Inclusion here: https://www.mottmacbentley.co.uk/people.

We are committed to ensuring that our recruitment practices are barrier-free and as inclusive as possible. This includes making adjustments during the job application process and throughout your future career with us. Please call 01756 691572 or email recruitment@jnbentley.co.uk to discuss any such adjustments that we can make. You can read more about our Equal Opportunities Policy here: Equality, diversity and inclusion - Mott MacDonald

Agile working

We are committed to providing a flexible and agile working environment that supports both our employees and the needs of the business.

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