Senior Transport Modeller​/Principal Transport Modeller

Position: Senior Transport Modeller / Principal Transport Modeller

About The Business Unit

Mott Mac Donald is a global engineering, management and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices. We deliver transport solutions to cities, regions and asset owners/operators worldwide, covering everything from business case preparation to the delivery and maintenance of infrastructure. Our planning, engineering, environmental and management skills span the whole project cycle, and we play a major role in developing and delivering the Global Transport Sector Strategy.

Overview

Of

The Role

We are expanding our transport modelling team in the Transport & Mobility Solutions (TMS) division. As a Senior/Principal Transport Modeller you will work on a range of strategic transport modelling projects for high‑profile clients such as the Department for Transport, National Highways, East West Rail Co and Heathrow Airport Ltd, as well as local clients across the UK and Europe. The role demands collaborative work with colleagues across the wider TMS division.

Responsibilities

• Lead and deliver strategic multi‑modal modelling projects.
• Manage modelling tasks, including survey programmes, model development, calibration, validation, demand forecasting and economic appraisal.
• Ensure outputs meet quality requirements and industry best practice, and motivate others to maintain standards.
• Organise, train and mentor other modelling resources to support project delivery and team development.
• Contribute key inputs to business cases and scheme assessments.
• Liaise with clients and other project stakeholders.
• Participate in business development activities, including proposal preparation.

Candidate specification

To succeed you will bring a numerical degree at bachelor’s or master’s level (or an equivalent qualification), extensive experience developing highway and public transport models from first principles, and proven proficiency in robust model development to support decision‑making. You should possess strong report writing, project management, supervisory, communication and technical skills. Experience with SATURN, VISUM, EMME, CUBE, Diadem, and survey data analysis aligned with TAG guidance is essential.

The

Following Would Also Be Desirable

• Expertise in GIS (Arc Map, QGIS, MAPINFO) and programming skills in Python, SQL, or other languages.
• Knowledge of microsimulation software such as VISSIM, PARAMICS, and AIMSUN.
• Understanding of the wider transport planning/engineering environment.

UK Immigration

Mott Mac Donald Ltd. are not currently offering sponsorship to candidates under the Skilled Worker visa route in the UK. We welcome applications from candidates who are eligible for alternative immigration routes that do not require sponsorship.

Agile working

We offer a hybrid working policy that embraces well‑being, flexibility and trust, allowing you to choose the most effective working pattern for you.

Equality, diversity, and inclusion

We promote fair employment practices and an inclusive environment where everyone can contribute.

Accessibility

If you are disabled or need support to apply or attend an interview, please contact us at reaso so we can discuss how we can help.

We Offer Some Fantastic Benefits Including Health and wellbeing

• Private medical insurance for all UK colleagues.
• Health cash plan for everyday health costs.
• Access to Peppy, supporting menopause expertise.
• Comprehensive wellbeing program for employees and families.
• Flexible salary allocation to health benefits, extendable to families.

Financial wellbeing

• Employee pension contributions matched between 4.5% and 7%.
• Life assurance up to 4× basic salary, with potential increase to 6×.
• Income protection scheme and return‑to‑work support for long‑term illness.
• Flexible benefits including critical illness insurance and payroll saving.
• Annual bonus schemes tied to overall business performance.

Lifestyle

• Minimum 33‑35 days holiday per year (public holidays included) with the option to purchase or sell leave through a flexible benefits programme.
• Holiday entitlement increases to a minimum of 35 days after five years’ service.
• Employee saving schemes and discounts from high‑street retailers.

Enhanced family and…