Principal Structural Engineer

Company: Costain Group

Location: Greater Manchester

Posted: April 26th, 2026

Due to continued growth, we have an exciting and challenging role for Principal Structural Engineer in our growing team of 150+ Civil & Structural Engineers and Designers. Our department covers a range of projects from Concept Studies through to Detailed Design to provide a variety of interesting work. Industries can range across Roads, Water, Transportation, Energy, Nuclear and Defence.

As a Principal Structural Engineer, you will be working in a multi-disciplinary team delivering infrastructure projects.

You will be responsible for the delivery of civil and structural (buildings and structures) advice, inspections, analysis, calculations, reports and specifications.

Taking responsibility for leading small projects and sub tasks from a technical perspective. Communicate designs effectively to the BIM teams, other disciplines, construction personnel and stakeholders. Attendance occasionally required for site visits, design reviews and client meetings. Support and guide more junior team members. Challenge and deliver value engineering solutions. Confident and authoritative in front of clients.

We are keen to hear from candidates with significant structural engineering experience and proven knowledge of design working practices and installation requirements who can work across a variety of sectors including water, rail, aviation and nuclear. The candidate should have good buildings experience.

This is a full time hybrid role based in Manchester office circa 2-3 days a week, other days will be home-based with site/client office attendance as per business needs.

Responsibilities

Key Responsibilities

As a client facing Principal Engineer, your responsibilities could involve:

Productions and development of highway specifications

Optioneering assessments, defining scopes of work, supporting estimates and business development.

Knowledge, Skills, and Experience

Qualifications

EEO Statement

A Disability Confident employer will generally offer an interview to any applicant that disclose they have a disability and meets the minimum criteria for the job as defined by the employer.

It is important to note that in certain recruitment situations such as high-volume, seasonal and high-peak times, the employer may wish to limit the overall numbers of interviews offered to both disabled people and non-disabled people.

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