- Salary: £50000 – £60000 per annum
- Type: Full Time
- Region: UK – East
- Town/City: Hertfordshire
- Posted: 21/05/2026
- Reference: BBBH5044_1779365908
Senior Drainage & Flood Risk Engineer
Hertfordshire (1 day per week office-based) | Permanent | Full-Time
Are you an experienced Drainage & Flood Risk Engineer looking for a senior role where you can take ownership of projects, lead technical delivery, and mentor junior engineers, while maintaining a flexible hybrid working arrangement?
We are working with an employee-owned civil engineering consultancy with a strong reputation for delivering practical, commercially focused infrastructure design solutions across residential, commercial and mixed-use developments. With expertise across drainage, flood risk, transport and infrastructure engineering, the business is known for its hands‑on, collaborative approach and strong track record in supporting successful planning outcomes for clients across the UK.
This is a senior-level opportunity within a growing technical team, offering autonomy, leadership responsibility and the chance to shape project delivery, alongside genuine flexibility in how and where you work.
The Opportunity
As a Senior Drainage & Flood Risk Engineer, you will take a leading role in the delivery of flood risk and drainage projects from feasibility through to detailed design and technical approval.
Key Responsibilities Include
- Leading the production of Flood Risk Assessments (FRA) and drainage strategies for planning applications
- Designing and reviewing SuDS and surface water management systems
- Delivering foul and surface water drainage designs using industry-standard software
- Contributing to Section 104, Section 38 and Section 278 design elements where required
- Managing project delivery, ensuring technical quality, programme adherence and commercial awareness
- Liaising with local authorities, Lead Local Flood Authorities, the Environment Agency and utility providers
- Supporting and mentoring junior engineers and technicians
- Attending client meetings, design reviews and planning discussions
- Assisting with project scoping, fee proposals and workload planning
About You
- Strong experience in drainage, flood risk or infrastructure engineering within consultancy or development environments
- Proven ability to produce Flood Risk Assessments and drainage strategies for planning submissions
- Experience delivering detailed drainage design for residential and mixed-use developments
- Working knowledge of UK drainage adoption processes (Sections 38, 104, 278)
- Proficiency with industry tools such as MicroDrainage / InfoDrainage, AutoCAD or similar
- Understanding of planning policy and regulatory frameworks (EA, LLFA, water companies)
- Ability to manage multiple projects and take technical ownership
- Strong communication and client-facing skills
- Relevant civil engineering qualification and progression towards or membership of ICE or CIWEM
What’s on Offer?
- Employee‑owned business structure
- Flexible hybrid working with only 1 day per week in the Hertfordshire office
- Opportunity to work on a wide range of UK development-led infrastructure projects
- Strong emphasis on technical development and career progression
- Collaborative and supportive team environment
This is an excellent opportunity for a Senior Drainage & Flood Risk Engineer looking for greater autonomy, technical ownership and flexibility within a well-respected consultancy.
Will Herman07581619823
Aldwych Consulting values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are happy to discuss reasonable adjustments and/or additional arrangements as required to support your application.
Candidates must be eligible to live and work in the UK.
For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.
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