Principal Mechanical Engineer Water Sector jobs in London – Browse 2,637 openings on RoboApply Jobs

Principal Mechanical Engineer Water Sector jobs in London

Open roles matching “Principal Mechanical Engineer Water Sector” with location signals for London. 2,637 active listings on RoboApply Jobs.

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AECOM logoAECOM logo
Full-time|On-site|London

Role Overview AECOM is seeking a Principal Mechanical Engineer with experience in the water sector to join the London team. This role focuses on designing and delivering mechanical systems that support sustainable water management and infrastructure projects. What You Will Do Lead and oversee project teams working on water sector mechanical engineering proje…

Apr 14, 2026
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Egis Group logoEgis Group logo
Full-time|On-site|London

Join Egis Group as a Mechanical Engineering Lead, specializing in the water and wastewater sectors in the UK. This role will involve providing technical leadership and driving growth initiatives while managing a team of engineering professionals. You will be responsible for overseeing project delivery, ensuring compliance with industry standards, and fostering innovation within the team.

Mar 3, 2026
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AECOM logoAECOM logo
Full-time|On-site|London

Join AECOM as an Associate Director - Lead Design Engineer in the Water Sector, where you will play a crucial role in delivering innovative engineering solutions. You will lead a talented team, overseeing design projects that contribute to sustainable water management. Your expertise will drive the development of cutting-edge designs, ensuring compliance with industry standards and best practices.

Jan 14, 2026
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AECOM logoAECOM logo
Full-time|On-site|London

Join AECOM as a Senior Design Manager specializing in the water sector, where you'll lead innovative design projects that have a meaningful impact on communities. Your leadership will guide a dedicated team, driving the successful delivery of high-quality water infrastructure solutions. You will collaborate with clients and stakeholders, ensuring that projects meet rigorous standards and timelines.

Mar 18, 2026
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AECOM logoAECOM logo
Full-time|On-site|London

Role Overview AECOM is hiring a Principal Mechanical Engineer with a focus on data centres in London. This senior position shapes the design and operation of advanced data centre facilities. What You Will Do Lead technical projects for data centre mechanical systems Guide and mentor junior engineers Work closely with multidisciplinary teams to deliver efficient, sustainable solutions Drive high standards for performance and reliability in data centre design

Apr 14, 2026
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Egis Group logoEgis Group logo
On-site|On-site|London

We invite qualified professionals to express their interest in exciting opportunities within the water sector at Egis Group. Join our mission to deliver innovative solutions that address the challenges of water management and sustainability.

Feb 13, 2026
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Egis Group logoEgis Group logo
Full-time|On-site|London

Egis Group is seeking a Senior Modeller to join its Water Sector team in London. This role centers on developing and applying advanced modelling techniques for water resource management and infrastructure projects. Key responsibilities Develop and implement advanced models to address water resource and infrastructure challenges. Collaborate with colleagues from different disciplines to deliver solutions that meet client needs. Collaboration The Senior Modeller works alongside professionals from multiple backgrounds, ensuring that modelling approaches align with project goals and client requirements.

Apr 24, 2026
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AECOM logoAECOM logo
Full-time|On-site|London

Join AECOM as a Principal Structural Engineer specializing in water projects. In this pivotal role, you will lead engineering design efforts, ensuring innovative solutions that meet rigorous safety and sustainability standards.As a key member of our team, you'll collaborate with multidisciplinary experts to deliver high-quality projects. Your expertise will guide the development of structural designs, assessments, and analysis, playing a crucial role in enhancing our water infrastructure.

Mar 30, 2026
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Egis Group logoEgis Group logo
Full-time|On-site|London

Join our dynamic team at Egis Group as a Mechanical Engineer specializing in water and wastewater solutions. We are seeking passionate and talented individuals at all levels to contribute to sustainable and innovative engineering projects. Your expertise will play a crucial role in enhancing the infrastructure that supports our communities.

Mar 3, 2026
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AECOM logoAECOM logo
On-site|On-site|London

Join AECOM and take the opportunity to grow your career in the dynamic water sector. We are looking for motivated individuals who are passionate about making a difference in the management and sustainability of water resources. This is a fantastic chance to express your interest in future roles with us, where your skills can contribute to impactful projects and initiatives.

Apr 7, 2026
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Egis Group logoEgis Group logo
Full-time|On-site|London

Egis Group is seeking an Electrical/EICA Engineer to support water and wastewater projects in London. This position is open to candidates across all experience levels who are interested in shaping essential infrastructure for communities. Role overview The Electrical/EICA Engineer will focus on designing and implementing electrical systems and instrumentation controls for water and wastewater treatment facilities. Projects emphasize compliance with industry standards and sustainable engineering practices. What you will do Develop electrical and instrumentation designs for treatment plants and related facilities Implement control systems that meet regulatory and environmental requirements Contribute to projects that support community well-being and resource sustainability Requirements Interest or experience in electrical or EICA engineering within the water or wastewater sector Commitment to quality, safety, and sustainable design

Apr 29, 2026
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Ramboll logoRamboll logo
Full-time|On-site|London

Join Ramboll as a Principal Mechanical Design Engineer, specializing in the healthcare sector. You will leverage your expertise to drive innovative design solutions that enhance healthcare environments and patient experiences. Collaborate with cross-functional teams to deliver high-quality projects that meet rigorous industry standards.

Feb 4, 2026
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AECOM logoAECOM logo
Full-time|On-site|London

Kickstart your career and advance with us.Are you prepared to join a dedicated team of Hydraulic Specialists and drive innovation in the Water Industry?We are in search of a Senior Hydraulic Specialist to enhance our expanding Water team. In this pivotal technical role, you will lead small teams in executing essential hydraulic analyses for clean water and wastewater treatment facilities across the UK.Your primary emphasis will be on hydraulic modelling of treatment facilities, complemented by opportunities to engage in a broader spectrum of treatment plant and civil design projects.Your responsibilities will include:Setting up HADES models for treatment plant infrastructureCalibrating models with physical dataInvestigating hydraulic modelling scenariosDeveloping innovative hydraulic solutionsPresenting findings to clientsCollaborating with multi-disciplinary teams within AECOM and externally to formulate solutionsPreparing high-quality technical reports, detailing model assumptions, build processes, results, and uncertainties.Supporting project delivery tasks, including hydraulic profiles and collaborating with other disciplines to create detailed design drawings.Engaging directly with clients.Utilizing company project management systems to ensure timely and budget-compliant project delivery.Join us and grow your career.We are a tight-knit team of engineers, hydraulic modellers, technicians, and project managers, serving a diverse clientele that includes local governments, water companies, and private developers.With 600 employees spread across the UK in cities such as Basingstoke, Belfast, Bristol, Chesterfield, Croydon, Edinburgh, Leeds, and Manchester, we offer flexibility in your work location across England and Wales.Our environment fosters collaboration and professional development, with opportunities for weekly team check-ins, client secondments, site-based assignments, and specialized training. You will have the chance to significantly influence your career trajectory, whether through enhancing our international offerings, spearheading technology-driven innovations, or mentoring fellow team members.We are committed to providing you with the challenges, opportunities, and support necessary for your success.Why work with us?Be part of a dynamic team working on impactful water projects.Collaborate with industry-leading professionals and thought leaders.Thrive in an inclusive and cooperative work atmosphere.Gain access to continuous learning and development opportunities.Receive a competitive salary and an extensive benefits package.Enjoy flexibility in your working style, promoting a healthy work-life balance.

Mar 3, 2026
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Mindera logoMindera logo
Contract|Hybrid|London, England, United Kingdom

At Mindera, we create exceptional software solutions with a team of passionate individuals. We are currently seeking a Principal Java Engineer with extensive experience in the retail domain to join our dynamic crew!This is a six-month contract role that operates outside of IR35 regulations. The position requires you to work in our Paddington office three days a week.Role Responsibilities:Lead technical discussions and knowledge-sharing sessions within the team, proactively identifying challenges and offering innovative solutions.Influence product and business strategies through technical expertise.Hands-on Software Development:Develop high-quality Java applications utilizing frameworks like Spring Boot or Micronaut.Create resilient services that facilitate secure, high-volume payment transactions.Integrate with acquiring banks, payment gateways, and fraud detection systems.Cloud & DevOps Practices:Design and maintain cloud-native solutions on platforms such as Azure, employing Terraform and Kubernetes.Oversee CI/CD pipelines with GitHub Actions, ensuring seamless deployment to production environments.Manage monitoring, alerting, and observability using tools like OpenTelemetry and Dynatrace.Security & Compliance:Promote secure coding practices and data protection across all services.Collaboration & Mentoring:Collaborate closely with product owners, engineering leads, and other stakeholders to define and refine technical solutions.Mentor junior, mid-level, and senior engineers, fostering a culture of technical excellence.Establish and advocate for best practices in code reviews, testing, delivery, and operational support.Continuous Improvement:Consistently enhance platform reliability, performance, and cost-effectiveness.Stay abreast of technology trends and proactively seek opportunities for innovation.

Nov 6, 2025
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DASH Water logo
Full-time|On-site|London, England, United Kingdom

About UsDASH Water is pioneering a revolution in the beverage industry, breaking away from conventional soft drinks, unnecessary food waste, and outdated business practices. Our mission is to offer refreshing, healthy soft drinks infused with real wonky fruit—those imperfect fruits that supermarkets often reject. With no sugar, no sweeteners, and no worries, our unique product line is designed for health-conscious consumers.Since our inception in 2017, we have rapidly emerged as the leading brand in a category that has seen over 60% annual growth in the UK. Our innovative direct-to-consumer platform solidifies our position, and by 2025, we aim to have sold over 40 million cans across 20+ international markets, partnering with esteemed retailers such as Sainsbury’s, Tesco, Waitrose, Ocado, and M&S.As a proud Certified B Corporation, we are committed to utilizing our business as a force for good, and we are thrilled to make this commitment official. Role Overview:We are seeking a dynamic and commercially savvy Shopper Marketing Manager to spearhead DASH Water’s shopper marketing initiatives across our key grocery partners. In this role, you will craft compelling in-store and online activations that drive growth, enhance customer collaborations, and position DASH as the preferred supplier. You will collaborate closely with our Commercial and Brand teams, as well as external agencies, to translate brand campaigns into insightful, shopper-focused strategies that yield measurable outcomes. Key Responsibilities:Develop and implement shopper marketing plans that effectively bring DASH campaigns to life both in-store and online.Work in partnership with Commercial and Brand teams to ensure that activations are aligned with customer needs and deliver commercial impact.Build and maintain strong relationships with key grocery contacts to co-create shopper strategies that provide mutual benefits.Monitor campaign performance, assess results, and leverage shopper insights to enhance future initiatives.Oversee and collaborate with internal creative teams and external agencies to produce high-quality, innovative shopper campaigns within budget and on schedule. You should feel at ease briefing creatives and proactively generating ideas.Take ownership of the annual trade marketing budget and the monthly reporting process.Advocate for the shopper perspective within the organization, ensuring that insights inform brand and commercial strategies.

Feb 20, 2026
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AECOM logoAECOM logo
Full-time|Hybrid|London

Embark on a Journey. Cultivate Your Career.“Are you prepared to collaborate with a team of hydrologists and influence the future of the Water Industry?”We are seeking a talented and motivated Principal Hydrologist to join our vibrant and multidisciplinary Water Team. This position offers the flexibility of being based in one of our UK or Ireland offices, alongside the benefits of our hybrid working model.As a pivotal team member, you will play a crucial role in the execution of transformative water projects both in the UK and internationally. Your expertise will lead hydrological assessments that will shape flood risk management, major infrastructure planning, water resource strategies, and environmental permitting.This senior position blends technical proficiency, client interaction, project management, and team leadership within a rapidly expanding water division.Your Responsibilities:Direct hydrological assessments to support flood risk evaluations, infrastructure designs, catchment strategies, and environmental impact studies.Provide expert guidance on rainfall-runoff modeling, river flow assessments, climate change considerations, and catchment analysis.Review and supervise hydrological modeling outputs, ensuring adherence to quality standards, accuracy, and compliance with UK regulations.Serve as the technical lead on significant frameworks and multidisciplinary projects spanning transport, energy, water, and development sectors.Advise clients on flood risk policies, drainage strategies, abstraction licensing, and environmental permitting prerequisites.Mentor and nurture junior hydrologists, promoting technical excellence and the sharing of knowledge.Contribute to business development initiatives, including bid submissions and client relationship management.If you have a passion for innovation and bringing visionary ideas to life, AECOM invites you to join our team. We don't just build infrastructure; we uplift communities and enhance lives. Follow our AECOM Water page on LinkedIn to stay informed about the impactful projects we are engaged in and witness the difference we make in the industry!Join Us and Flourish.Be part of our dynamic Water business, where approximately 600 experts work across the UK & Ireland. Collaborate with leading engineers and consultants to deliver a diverse range of exciting projects, from small initiatives to large-scale endeavors, guiding them from concept through to fruition.At AECOM, you will thrive in an inclusive and forward-thinking environment where your contributions are appreciated. Enjoy a range of core and personalized benefits tailored to support your well-being and future. Leverage career development opportunities, access to technical practice networks, AECOM University, volunteering days, and our flexible hybrid working model to achieve a work-life balance that fits your needs. We recognize that each individual's journey is unique...

Mar 3, 2026
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AFRY logoAFRY logo
Full-time|On-site|London

Join our dynamic team at AFRY as a Principal Civil Engineer, where you will lead innovative projects and drive engineering excellence in the heart of London. We are looking for a talented professional who can demonstrate exceptional technical skills and a commitment to sustainability and infrastructure development.

Jan 28, 2026
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Ramboll Group A/S logoRamboll Group A/S logo
Full-time|On-site|London

Join Ramboll as a Principal Electrical Engineer in our London office, where you'll lead innovative projects and collaborate with a talented team of engineers. This role offers an exciting opportunity to shape the future of electrical engineering in a dynamic environment.

Dec 17, 2025
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Athenia Recruitment logoAthenia Recruitment logo
Full-time|£60K/yr - £60K/yr|On-site|South East London

Join Our Team as a Principal Geotechnical EngineerWe offer a competitive salary based on experience and qualifications, reaching up to £60,000 per annum, in addition to a comprehensive benefits package.Location: South East LondonOur esteemed consultancy firm is on the lookout for a Principal Geotechnical Engineer to bolster our Geotechnical National Service line at our London office. We seek individuals who are ideally Civil Engineers with a minimum of 4 years' experience. You will be stepping into a highly respected professional team known for its commitment to quality, technical expertise, and the delivery of commercially viable solutions for our clients.As the Principal Geotechnical Engineer, you will focus on ground movement analysis and collaborate closely with structural engineers on a portfolio of significant developments in London and across the nation. You will be responsible for delivering integrated ground investigations, preparing interpretative reports, and providing geotechnical design advice for a diverse array of projects, including tall towers, deep basements, retaining walls, ground improvement, and earthworks by leveraging both national and local resources. Your role will also involve sharing technical support across the business, enhancing the resilience and strength of our national virtual team.

Mar 2, 2020
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Ramboll Group logoRamboll Group logo
Full-time|On-site|London

Join our innovative team at Ramboll Group as a Senior Mechanical Engineer. In this pivotal role, you will lead the design and implementation of engineering solutions for diverse projects, ensuring compliance with industry standards and optimizing performance. You will collaborate with multidisciplinary teams, mentor junior engineers, and contribute to the continuous improvement of engineering practices.

Dec 17, 2025

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