_{31st March, 2026}

JOB SPEC TEMPLATE
LEAD INFORMATION

• Job Title Senior / Principal Drainage Infrastructure Engineer
• Site location Cardiff
• Responsible to Senior Leadership Team / Associate Director
• Purpose of the role To support and help lead the delivery of civil engineering drainage design across a diverse portfolio of infrastructure projects, with a focus on SuDS and surface water management.
• Client brief Our client is a well-established, multi-disciplinary engineering consultancy seeking to grow their Cardiff team with a technically strong and forward-thinking drainage engineer who can contribute to both project delivery and team development.

KEY INFORMATION

• Reason for vacancy Business growth and expansion of the drainage infrastructure team
• Contract Permanent
• Salary £50,000-£57,000 per annum depending on experience
• Shifts Monday - Friday (Agile / flexible working available)
• Holidays 24 days + bank holidays (including Christmas closure) +1 additional day per 5 years' service
• Facilities Modern office environment with flexible / hybrid working options

RESPONSIBILITIES

• Assist in leading the delivery of civil engineering design across infrastructure projects
• Lead surface water and foul water drainage strategies and detailed designs
• Deliver SuDS and conventional drainage solutions
• Manage multiple concurrent projects and prioritise deliverables
• Provide technical support and assist with resource planning
• Support, mentor and develop junior engineers
• Liaise with statutory bodies including Natural Resources Wales and the Environment Agency
• Manage Water Authority approval processes (S104, S106, etc.)
• Build and maintain strong client and stakeholder relationships

REQUIREMENTS / EXPERIENCE

• 7+ years' experience in surface and foul water design and/or construction
• Strong knowledge of Sewers for Adoption and Design Manual for Roads and Bridges
• Degree in Civil Engineering (Masters preferred)
• Chartered status with ICE or CIWEM (or close to completion)
• Proficient in:
• MicroDrainage
• InfoDrainage
• AutoCAD
• Civils 3D
• Autodesk ICM
• Experience with:
• S104 and S106 approval processes
• SuDS Approval Body (SAB) approvals
• National Planning Policy and flood risk management
• Demonstrable leadership and team management capability
• Strong written and verbal communication skills
• Ability to work independently and collaboratively
• Proactive and methodical problem-solving approach

BENEFITS

• Competitive salary
• Agile and flexible working arrangements
• 24 days holiday + bank holidays + Christmas closure
• Additional leave for long service
• Life insurance and life assurance
• Health care cash plan
• Contributory pension (5% employee / 7% employer)
• Professional membership fees paid (ICE, CIWEM, etc.)
• Structured pathway to chartership
• External training and regular CPD
• Social and wellbeing initiatives
• Paid volunteer time

 
Serply Recruitment Ltd acts as an employment business for temporary positions and an employment agency for permanent positions. We are committed to equal opportunity and diversity.

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