What you will be doing: As a Senior Design Engineer, you’ll play a key role in the Engineering Design Team, working closely with Principal Engineers, Design Managers and Design Leads to deliver high-quality designs that meet processes, BMS requirements and H&S standards. This role is hands-on across water and wastewater projects, with potential line management of discipline and non-discipline engineers. You’ll help drive innovation, support engineering governance and ensure designs align across all disciplines. You’ll also provide technical input for procurement and assist site teams when needed. Alongside this, you’ll support the Discipline Manager and Principal Engineers with knowledge sharing, mentoring and developing engineers at all stages of their careers. About You: * Educated to Degree level in Engineering or other equivalent qualification. * Demonstrable experience of 7 years working within the Municipal Water and Wastewater industries, working with a variety of clients. e.g. Severn Trent, Scottish Water, Yorkshire Water, United Utilities, Thames Water, Southern Water * Preference for Chartered Member of a recognised professional Engineering body. * Competent in a contracting / consulting environment, with commercial awareness. * Knowledge in Civil design of non-infrastructure including but not limited to buried and above ground gravity and pressurised water and wastewater systems, design of inlet works, final effluents, primary, settlement tanks and other associated tanks, chambers within WTW and WWTW. * Knowledge of current H&S legislation and British Standards and experience in applying them across designs. * Experience of working in accordance with QA and H&S procedures. * Produce/ check calculations and reports to support those designs Ideally you will have: * Understanding of hydraulics and experience in hydraulic calculations * Preferable knowledge in structural design of below and above ground water retaining structures and RC detailing but not essential * Experience of liaising with Client on technical matters to understand their needs and develop solutions to their problems * Attendance at design, progress and site meetings as required Awareness of NEC contracts * Competent with requirements of the companies Integrated Management System including Health & Safety, Environmental and all other appropriate regulations * Strong written and oral communication and organisational skills and to produce reports in clear concise English * Proven ability to lead and work within a team environment with a dedicated approach to meet project deadlines * Keep up to date with industry best practice and where appropriate identify innovation/best practice for consideration * Co-ordinate and liaise with suppliers, specialist sub-contractors, in-house functions and construction teams * Understanding in design activity schedules estimates * Proficient in working with multi- disciplinary teams * Supervise and mentor less experienced or junior engineers What We Offer: With a £3.9bn order book, we’re one of the UK’s leading principal contractors, giving you stability and access to major, career-defining projects. You’ll join a diverse, high-performing team with strong commitment and a clear growth strategy. We prioritise your wellbeing through our Be Well programme, offering support, guidance and product discounts. We also invest heavily in development, from apprenticeships to leadership training, with tailored Career Paths to help you reach your potential. We know people do their best work when they feel valued, and our Agile Working approach provides flexibility in how, when and where you work, balancing your needs with the needs of your team. Our benefits: We put our people first and our benefits package reflects that by offering a comprehensive range of attractive options to help support your career on top of a competitive salary. * Generous holiday entitlement, increasing with years of service, plus the opportunity to purchase further holidays * A wide range of corporate discounts * Cycle to Work schemes * Comprehensive pension plan * Regular Save as You Earn share purchase scheme * Private medical scheme options are available for all salaried employees and our employee assistance programme also provides free 24/7 support to those who need it * Paid for yearly membership to one recognised professional association relevant to your role