Driving delivery across vital water and wastewater programmes nationwide. An exciting opportunity has arisen for a number of Senior Project Delivery Managers to join our growing Water team, delivering a diverse portfolio of technical projects across the UK. This is a key role for an experienced project professional who thrives in a fast-paced environment and enjoys working across complex engineering and digital delivery programmes. Purpose and scope of the role: You will lead projects through the full lifecycle, from inception to handover and closure, working within a multi-disciplinary team on technically challenging and commercially significant work. The role will involve managing project delivery, programmes, budgets, risks and stakeholder relationships, while supporting both capital works and software as a service projects. You will work closely with clients, colleagues and supply chain partners to ensure safe, high-quality outcomes delivered in line with agreed...

Work on electrical design for UK water infrastructure Purpose and scope of the role: You will join Tetra Tech's Water Consultancy team, delivering AMP8 and AMP9 wastewater programmes across the UK. Day-to-day, you will produce electrical and instrumentation/control & automation (ICA) design deliverables, calculations, single line and system architecture diagrams, P&IDs, schedules, reports and drawings, while supporting feasibility through detailed design for programmes that address flooding and pollution. You will work within a multidisciplinary team of engineers, designers, modellers and data analysts, contributing to frameworks and projects ranging from small works to multi-million-pound packages, liaising with clients, contractors and project managers to meet programme milestones and quality standards. Your impact in this position: In the short term, you will develop technical competence in LV/MV distribution, load assessments and ICA architecture while...

Advance mechanical design for national water programmes Purpose and scope of the role: Tetra Tech is recruiting a Mechanical Design Engineer to join our Water Consultancy team, delivering AMP8 and AMP9 projects across the UK. You will produce mechanical design outputs from feasibility through to detailed design and construction support, including pump and aeration system sizing, P&IDs, specifications, datasheets, calculations and procurement documentation. Daily activities include site surveys, multidisciplinary coordination, client liaison and digital drawing production. Work spans wastewater programmes, urban drainage studies, WINEP/SOAF/DWMP initiatives and capital delivery projects forming part of long-term frameworks. Your impact in this position: In the short term you will deliver accurate, constructable designs and site reports. Over the medium term you will optimise plant performance and contribute to low-carbon, whole-life solutions. Longer term you...

Take the next step in your career by helping deliver major AMP8 and AMP9 wastewater programmes across the UK. Join Tetra Tech's growing Water Consultancy team and play a key role in shaping engineering solutions that address pollution, flooding and long-term water industry challenges. Purpose and scope of the role: As Senior Mechanical Design Engineer, you will lead and contribute to multidisciplinary wastewater and water treatment projects from feasibility through to detailed design. Working closely with clients, senior engineers and project teams, you will develop mechanical solutions, review existing site infrastructure, and produce technical outputs including specifications, calculations, drawings, reports and design risk assessments. You will support delivery across major frameworks and help guide the work of less experienced engineers. Your impact in this position: You will help deliver high-quality engineering solutions that improve water services and...

Lead mechanical design for national water programmes Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking multiple Principal Mechanical Design Engineers to lead mechanical design delivery across major, long-term UK water industry frameworks. You will own mechanical design outputs for pumping systems, aeration and process plant equipment from optioneering through detailed design and construction support, producing specifications, P&IDs, schedules, calculations and procurement documentation. Projects include a £100 million, 10-year United Utilities framework and a broad AMP8/AMP9 portfolio. You will coordinate multi-disciplinary teams of engineers, modellers and data analysts, engage clients and supply-chain partners, and provide technical assurance on multi-million-pound capital schemes. Your impact in this position: In the short term you will deliver robust mechanical designs and site survey outputs. Over the medium term you will...

Lead commercial delivery on flagship water infrastructure programmes Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking a Quantity Surveyor to join our Water Team, supporting major long-term water industry frameworks across the UK. You will be client-facing on large, high-profile capital delivery projects, responsible for cost estimating, procurement and contract management from optioneering through to detailed design and construction. Typical programmes span AMP8 into AMP9, delivering technically demanding wastewater infrastructure packages within multidisciplinary teams. You will report into the commercial lead, collaborate with engineers, modellers and delivery partners, and influence projects with multi-million pound budgets across the North West regions. Your impact in this position: Immediately, you will strengthen commercial controls and contribute to tender and estimating workstreams. Over the medium term, you will lead procurement...

Shape process performance across UK water networks Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking multiple Principal Process Engineers to lead process design, optimisation and advisory services across major long-term water industry frameworks UK-wide. You will produce and review process envelope definitions, influent characterisations, PFDs, outline and detailed calculations, control philosophies and technical reports for treatment works, pumping stations and allied assets. Daily activity includes design leadership, multidisciplinary coordination, client engagement and digital design development. Projects include a £100 million, 10-year United Utilities framework and a broad AMP8/AMP9 portfolio of multi-million-pound programmes. Your impact in this position: In the short term you will assure process deliverables and support project delivery. Over the medium term you will drive process optimisation, integrate laboratory data and digital...

Lead electrical and control design for national water programmes Purpose and scope of the role: Tetra Tech's Water Consultancy is seeking a Senior Electrical & ICA Design Engineer to join our Water Consultancy team, delivering AMP8 and AMP9 wastewater programmes across the UK. You will produce electrical and instrumentation, control and automation (ICA) designs for treatment works, pumping stations and ancillary plant, including load assessments, LV/MV distribution, cable sizing, single-line diagrams, URSs, FDSs and control philosophies. Daily responsibilities include client liaison, multidisciplinary coordination, site surveys, technical review and delivery of construction-ready documentation for multi-discipline design packages. Your impact in this position: In the short term you will ensure technical rigour and timely delivery of electrical and ICA packages. Over the medium term you will improve system reliability and constructability, support digital design...

Driving the design and delivery of vital water infrastructure across civil, mechanical and electrical disciplines. An exciting opportunity has arisen for Project Engineers at various levels (Engineer, Senior and Principal) to join our growing water team, delivering a diverse portfolio of technical projects across the UK. This is a key role for individuals with water industry project delivery experience who thrive in a fast-paced environment and enjoy working across complex engineering and digital delivery programmes. Purpose and scope of the role: You will lead projects through the full lifecycle, from inception to handover and closure, working within a multi-disciplinary team on technically challenging and commercially significant work. The role will involve taking overall responsibility for technical delivery of projects and programmes through co-ordinating multi-disciplinary feasibility and design teams. You will work closely with project managers, clients,...

Shape the Fire Safety Strategies Behind the UK's Most Complex Engineering Projects Join a specialist team at the forefront of fire engineering within some of the nation's most challenging technical environments. This role offers the opportunity to influence major infrastructure projects, contribute to safety critical decisions and develop deep, first principles engineering expertise within a collaborative and highly respected consultancy. Purpose & Scope of the Role As a Senior Fire Safety Engineer, you will be central to the delivery of rigorous, technically assured fire safety strategies and fire hazard analysis across a diverse range of sectors, with a significant focus on nuclear and other high hazard environments. You will shape fire safety considerations from the earliest design stages, reviewing building layouts, advising multidisciplinary design teams and guiding complex projects towards compliant, resilient and well engineered solutions. Working with...

Join us in shaping the future of Fire Safety Engineering At Tetra Tech, we're looking for a motivated and ambitious Principal Fire Safety Engineer to join our growing fire safety engineering team. This role offers the chance to work on a diverse portfolio of projects - delivering fire strategy design and hazard analysis across sectors such as nuclear, residential, commercial, office, waste and recycling and other high-hazard environments. Whether you're actively seeking your next challenge or open to exploring new possibilities, this role offers the chance to grow your career within a consultancy renowned for its technical excellence and collaborative culture. Purpose & Scope of the Role Within the nuclear sector our projects often involve bespoke, technically complex challenges with limited reference documentation which offers a distinct contrast to the more prescriptive residential sector. Engineers will have the opportunity to apply core fire engineering...

Lead the Future of Nuclear Safety Join a role where technical authority meets strategic leadership. This is an opportunity to shape complex, safety-critical projects across the UK's nuclear landscape, influencing high-impact decisions and driving excellence in safety case delivery within a highly regulated environment. Purpose & Scope of the Role This Associate Director position sits at the forefront of nuclear safety consultancy, combining deep technical expertise with leadership accountability across a varied and high-value project portfolio. You will lead the delivery of complex safety case assessments spanning defence, decommissioning and energy generation projects, ensuring outputs meet exacting regulatory and quality standards. Operating at the intersection of engineering, safety assurance and compliance, you will coordinate multidisciplinary teams to produce, review and assure robust technical documentation. The role requires ownership of large-scale...

Lead the Future of Nuclear Safety Are you ready to shape the safety standards of some of the most complex and high-profile projects in the nuclear sector? This is your opportunity to make a tangible impact on the future of nuclear, energy, defence and decommissioning. We're looking for an experienced Senior Nuclear Safety Consultant who thrives in a technical environment and wants to lead challenging projects that matter. Purpose & Scope of the Role This role is central to delivering high-quality safety case assessments for nuclear facilities and operations. The successful candidate will be responsible for producing and reviewing technical documentation, conducting hazard identification and risk assessments and ensuring compliance with stringent regulatory standards. The individual will also prepare proposals, support tender submissions and oversee financial reporting for projects under your leadership. Collaboration is key as you'll work closely with...

Ready to lead where nuclear safety decisions truly matter? If you are motivated by solving technically demanding problems in highly regulated environments, this is an opportunity to lead from the front. As a Principal Nuclear Safety Consultant, you will combine deep technical expertise with strategic influence, playing a defining role in the delivery of robust safety cases that underpin the safe operation, decommissioning and future development of nuclear facilities. This role offers the chance to shape critical decisions, mentor the next generation of specialists and contribute directly to the growth and reputation of a leading nuclear safety consultancy. Purpose & Scope of the Role The Principal Nuclear Safety Consultant provides technical leadership in the delivery of high quality nuclear safety case work across a diverse portfolio of projects. Operating within a safety critical and highly regulated environment, the role spans short term safety assessments...

Help Shape Healthier Workplaces Across The North West Tetra Tech is seeking an experienced Occupational Health Advisor to deliver high-quality, proactive occupational health services for clients across the North West (Preston) Purpose and Scope of the Role This permanent, site-based role will see you provide class-leading occupational health support, including case management, health surveillance, health screening and health promotion. You will work closely with client organisations, employees, managers and the wider clinical team to support safe, healthy and productive workplaces. As part of a multidisciplinary occupational health team of nurses, doctors, technicians and advisors, you will deliver consultations covering fitness for work, absence management and employee assistance programmes. The team focuses on quality over volume, with case management assessments limited to six per day to support manageable workloads, strong service standards and long-term...