Costain Group
Principal Civil & Structural Engineer (Water)
Skills
3 months ago
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Important information
Location:
Manchester, UK
Work mode:
Hybrid
Published on:
7 August 2026
What they need
New opportunity for a Principal Civil & Structural Engineer to join to the Water Division of CEL - Costain’s multi-discipline engineering and design team who deliver design mainly across Costain projects. The design outputs range from studies to detailed design for permanent and temporary works. This team focus on the delivery of sustainable, safe-by-design outputs with a strong constructability ethos.
Working in a multi-disciplinary team delivering projects in the Water Sector, you will be responsible for the delivery of civil and structural advice, analysis, calculations, reports and specifications.
As a Principal Engineer you will be responsible for delivering key elements of design work on projects, primarily through the management of technical resources to deliver to Costain and Client promises. This role will require significant technical interface management between delivery teams, driving delivery, ensuring compliance and quality, reporting and resolving complex challenges.
You will take responsibility for leading projects and sub tasks from a technical perspective and communicate designs effectively to the BIM teams, other disciplines, construction personnel and stakeholders.
This is a hybrid role with office attendance circa 2-3 days per week in Manchester along with occasionally required for site visits, design reviews and client meetings, within our clients’ offices. Support and guide more junior team members. Challenge and deliver value engineering solutions. Confident and authoritative in front of clients.
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Key Responsibilities
As a client facing Principal Engineer, your responsibilities could involve:
- Responsibility for C&S discipline technical input for projects and/or proposals; including preparation, checking and/or approval of engineering documentation
- Organising discipline staff, allocating work and ensuring delivery against plan
- Mentoring and developing graduates and less experienced engineers
- Production of high-quality C&S engineering deliverables to schedule, budget and client satisfaction
- Ensuring all applicable national and international codes of practice, legislation and company/client standards and procedures are complied with.
- Preparing installation scopes of works and supporting constructability and delivery specialists
- Reviewing supplier’s quotations and preparing technical bid assessments
More specific tasks could include:
- Defining client requirements
- Planning and delivering project tasks undertaken by the C&S team
- Design of new structures, assessment of historic structures, checking and approving C&S documentation from subordinates.
- Development of specifications and sub-contract SOWs including GI / SI contamination scopes
- Optioneering assessments, defining scopes of work, supporting estimates and business development.
- Advise and guidance on specialist discipline matters relating to nuclear sector requirements, regulations, latest technologies and industry best practice.
- Supporting the PM in identifying change, progress reporting, tracking of issues, risks and resolutions
Knowledge, Skills, and Experience
Essential
- Significant and proven experience within the UK water industry at all stages of the project lifecycle.
- Good knowledge of design working practices and installation requirements of the discipline across a range of industries.
- Extensive knowledge of UK legislation and standards.
- Awareness of risk identification, quantification, management and of HSE requirements.
Desirable
- Experience of UK water industry standards and processes.
- Experience with new and historic structures, optioneering assessments, defining scopes of work, supporting estimates and business development.
- Experience in leading small teams and supporting more junior engineers.
- Knowledge and experience of common forms of contracts.
- Project Management experience.
- Requirements Management experience.
Essential
- Minimum BEng Civil or Structural Engineering.
- Chartership with ICE or IStructE.
- CSCS or CCNSG.
Desirable
- Additional technically focused qualifications / training
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