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Costain Group PLC

Senior Design Manager

Costain Group PLC

Senior Design Manager responsible for engineering solutions in water and wastewater projects. Lead design teams and ensure project delivery to time, cost, and quality objectives.

Posted 5/21/2026full-timeSouthampton • 🇬🇧 United KingdomSeniorWebsite

About the role

Key responsibilities & impact
  • Deliver engineering solutions at programme level from initial definition of need through optioneering
  • Solution development and detail design
  • Construction support
  • Lead a team of Design Managers and Discipline Design engineers in the development of water technical solutions
  • Ensure affordable design solutions are developed within project budget
  • Establish collaborative working relationships with the client and design teams
  • Ensure sustainable design solutions completed in accordance with CDM Regulations
  • Agree design budgets, monitor performance against the budget and provide forecast costs to completion for individual projects
  • Prepare monthly project status reports
  • Ensure continuous professional development by participating in external networking/conferences/associations/groups
  • Maintain a positive and solution-oriented approach to work

Requirements

What you’ll need
  • Experience of technical project delivery in a design-build environment
  • Experience in the Water Treatment Industry
  • Experience in leading and managing multi-disciplinary design teams
  • Degree in an engineering-related discipline
  • Must be delivery-driven with the ability to set targets, manage and motivate multi-disciplinary teams to deliver to time, cost and quality objectives
  • Strong technical and management skills
  • Able to identify and manage project/programme risk
  • Able to identify and manage changes to project scope
  • Chartered Engineer in an engineering-related discipline (Desirable)
  • Experience of working in Joint Ventures (Desirable)
  • Experience of offsite manufactured design solutions (Desirable)

Benefits

Comp & perks
  • Health and safety training
  • Professional development opportunities
  • Paid time off
  • Company events and gatherings
  • Team building activities

ATS Keywords

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Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
technical project deliverydesign-build environmentwater treatmentmulti-disciplinary designproject/programme risk managementproject scope managementaffordable design solutionssustainable design solutionsCDM Regulationsoffsite manufactured design solutions
Soft Skills
delivery-driventarget settingteam managementmotivationcollaborative workingpositive approachsolution-orientedcommunicationleadershiporganizational skills
Certifications
degree in engineering-related disciplineChartered Engineer