Principal Structural Engineer

Mott MacDonald is a global engineering, management, and development consultancy with over 20,000 employees across more than 50 countries and 140+ offices.

Our energy unit delivers services across hydropower, nuclear, waste, renewable generation and transmission & distribution networks, providing integrated engineering and project management services across the project lifecycle.

About The Role

The Energy Unit, specifically the Nuclear, Defence and Civil division, is recruiting a Principal Civil / Structural Engineer to be part of the Civil / Structural team delivering projects within the nuclear industry. The role involves supporting design activities, developing client relationships, mentoring junior team members, increasing opportunities across the Defence Nuclear sector and leveraging this capability into the Civil Nuclear sector.

Responsibilities

• Conduct analysis with appropriate verification and validation.
• Review analysis of other staff members.
• Develop the skills of junior staff members.
• Produce and review design calculations supporting analysis.
• Produce high quality documentation tailored to the specific stage of project completion.
• Lead analysis teams on projects.
• Lead preparation of bids and estimates.
• Work within a multidisciplinary environment ensuring effective communication with project stakeholders.
• Attend site or other offices to complete surveys or attend meetings.

Essential requirements

• Chartership with either the Institution of Civil or Structural Engineers and extensive post‑graduate experience.
• Detailed understanding of Finite Element Analysis and related software.
• Experience leading and managing projects from concept to completion.
• Experience in the design of concrete and steel structures.
• Strong knowledge of British Standards and Eurocodes.
• Excellent communication skills, both written and verbal, with experience in client‑facing roles.

Desired requirements

• Experience delivering projects in a highly regulated industry.
• Understanding of the contribution of analysis to nuclear Safety Cases.
• Experience using LS‑DYNA, SAP2000 or ANSYS.
• Experience in Soil‑Structure Interaction (SSI).
• Experience in dynamic loading design.
• Experience working in the nuclear sector.
• Knowledge of American design standards.

Engineers from other regulated industries are encouraged to apply. Training and support will be provided to develop the necessary skills for the Nuclear sector.

Due to project sensitivity, candidates must obtain UK Security Clearance.

UK Immigration

Mott MacDonald Ltd. does not offer sponsorship for the Skilled Worker visa route. We welcome applications from candidates eligible for alternative immigration routes that do not require sponsorship.

Equality, diversity, and inclusion

We promote a welcoming and inclusive environment for everyone.

Accessibility

Support is available for disabled candidates requiring reasonable adjustments. Contact

Agile working

We support flexible working arrangements.

Benefits

Health and wellbeing

• Private medical insurance for all UK colleagues.
• Health cash plan to support everyday health costs and treatments.
• Access to Peppy for menopause support for all UK colleagues.
• Wellbeing support available through our comprehensive wellbeing program, including for your family.
• Flexibility to tailor salary into health benefits for yourself and family.

Financial wellbeing

• Pension contributions matched between 4.5% and 7%.
• Life assurance equal to up to 4× basic salary, with option to increase to 6×.
• Income protection scheme with financial benefit and support for long‑term illness or injury.
• Flexible benefits including increased life assurance, critical illness insurance, payroll savings and will writing.
• Bonus schemes share business success with colleagues.

Lifestyle

• Minimum 33–35 days holiday each year, including public holidays, expandable to 35 days after 5 years.
• Employee saving schemes and discounts from retailers.

Enhanced family and carers leave

• 26 weeks paid maternity and adoption leave; two weeks paid paternity/partner leave.
• Shared parental leave matches maternity leave up to 24 weeks at full pay.
• Up to five additional caring days, two paid.

Learning and development

• Primary annual professional institution subscription.
• Mentoring, formal training and self‑development options.

Networks, communities, and social outcomes

• Employee networks supporting LGBTQ+, gender, race, ethnicity, disability, and parent/carer communities.
• Participation in social outcomes projects.

Location(s): Southampton, GB; Glasgow, GB; Altrincham, GB

Contract Type: Permanent

Work Pattern: Full Time

Market: Energy

Discipline: Energy

Job Ref: 14782

Recruiter Contact: Cassidy Browne

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