Senior Modeller - Water Sector

Join our innovative team at dev2 as a Senior Data Modeller. In this role, you will be at the forefront of shaping our data architecture and modeling strategies to drive insightful decision-making across the organization. Your expertise will be critical in designing sophisticated data models that enhance our analytical capabilities and support our business objectives.

Join Monzo as a Senior Forecasting Modeller, where you will leverage advanced analytics to shape our financial forecasts. Your expertise will guide decision-making processes and enable us to enhance our strategic planning. You will collaborate closely with cross-functional teams to develop robust predictive models that drive business growth and improve operational efficiency.

Launch Your Career with AECOM and Make an Impact!“Join our team of flood risk specialists and help shape the future of the Water Industry!”We are seeking a dedicated Senior Flood Modeller to become a vital part of our expanding Water Business Line in London. This is your opportunity to contribute to high-profile projects throughout the UK and beyond while being part of one of the UK’s leading engineering hubs.As a Senior Flood Modeller at AECOM, you will serve as a key technical resource, mentoring junior staff and driving our service offerings to local authorities, water companies, and both private and public sector clients.Your Responsibilities:Develop and validate hydraulic models using software such as Flood Modeller, TUFLOW, Mike 11, Mike 21, HEC-RAS, and ICM for Flood Alleviation Schemes, Flood Risk Assessments, and reservoir flood studies.Create water quality models utilizing industry-standard software like MIKE, Delft3D, SIMCAT, and/or ICM.Conceptualize and outline modelling strategies, assessing risks and opportunities.Conduct and review hydrological assessments in accordance with the Flood Estimation Handbook, ReFH2, and WINFAP standards.Lead and contribute to tenders for innovative projects and multimillion-pound framework contracts.Mentor team members to enhance their professional growth.Foster strong relationships with clients and collaborate with other technical disciplines.Stay informed about relevant legislation and guidelines impacting our services.Utilize AECOM’s project management systems to deliver exceptional outputs within the agreed timelines and budgets.Work in close partnership with clients and multidisciplinary teams to execute a variety of flood risk management projects.If you are driven by innovation and eager to turn visionary ideas into reality, AECOM is the place for you. Join us in our mission to not just build infrastructure but also uplift communities and enhance lives. Follow our AECOM Water page on LinkedIn to stay updated on the meaningful projects we are engaged in!Grow Your Career with Us!Become a part of our vibrant Water business, which comprises around 700 experts across the UK and Ireland. Collaborate with top-tier engineers and consultants to deliver a range of captivating projects.

About XYZ RealityXYZ Reality is an innovative, award-winning Series-A startup on the cusp of our next funding round. Our goal is to enhance our platform by improving its features, performance, and scalability, all while transforming the construction industry.As a dynamic multi-disciplinary organization, we operate across various fields such as cloud development, data governance, data processing pipelines, electronics, embedded software/hardware, mechanical design/manufacturing, AI & computer vision, and data science, all contributing to the efficacy of our Building Information Modeling (BIM) Platform.To help propel our mission, we are in search of a Senior Data Engineer who possesses extensive experience in data modeling, database management, and data pipeline development. The ideal candidate will play a pivotal role in maintaining our existing tech stack and developing new features with an emphasis on performance and scalability. Collaboration with our API/backend development and data pipeline teams will be crucial to create robust and efficient solutions.

AECOM is seeking a Senior or Principal Civil 3D Modeller to support infrastructure projects in London. This role centers on applying advanced Civil 3D skills to produce accurate models for a range of engineering and construction initiatives. Role overview Work closely with multidisciplinary teams to develop and refine design solutions. The position involves creating detailed models that support project delivery and contribute to effective collaboration across engineering disciplines. What you will do Use Civil 3D to generate and manage models for infrastructure projects Coordinate with colleagues from various specialties to ensure integrated project outcomes Support design innovation and maintain high standards of quality in modelling work Requirements Extensive experience with Civil 3D software Background in infrastructure or related engineering projects Strong collaboration and communication skills

Join our innovative team at Egis Group as a Senior Wastewater Modeller, where you will play a pivotal role in the design and analysis of wastewater systems. You will leverage advanced modelling techniques to enhance the efficiency and sustainability of our projects. This is an exciting opportunity to work on impactful projects that contribute to environmental sustainability.

About Gridcog Gridcog is a SaaS start-up focused on advancing the clean energy transition. The team brings together energy professionals building project modeling software that helps users make informed, strategic decisions about energy projects. Role Overview This Senior Simulation Engineer (Modeling) position centers on improving and expanding the simulation and optimization capabilities within Gridcog’s Python codebase. The work blends mathematical modeling, numerical methods, and production-level software engineering to deliver accurate, efficient, and reliable simulations at scale. What You Will Do Enhance and extend simulation and optimization features in the core Python platform Work with mathematical models and numerical methods to support complex energy project scenarios Ensure modeling outputs remain accurate and efficient as the platform grows About the Platform The Gridcog platform models the physical and commercial aspects of energy projects. It integrates technologies such as solar, wind, batteries, flexible loads, gensets, and EV fleets, capturing their interactions within electricity markets and tariff structures worldwide. Who Should Apply Simulation engineers with experience in modeling uncertainty and solving complex business problems Candidates with backgrounds in energy systems modeling are encouraged, but those with transferable skills from other modeling or data science domains will also be considered Location This position is based in London, England, United Kingdom.

Role overview The Senior Associate, Strategic Pricing - Modelling at Checkout.com will focus on developing and refining pricing strategies through advanced financial modeling. Based in London, this position supports pricing decisions that aim to balance client value with company profitability. The role works closely with teams across the business to ensure pricing approaches are informed and aligned. What you will do Analyze market trends, customer patterns, and competitor pricing to inform overall strategy. Build and improve financial models that guide pricing decisions. Work with cross-functional teams to gather insights and coordinate on pricing approaches. Contribute to optimizing pricing structures to achieve business goals and address client needs. Requirements Proven experience with financial modeling and strategic pricing methods. Strong analytical skills and ability to work with large data sets. Interest in applying data to support business decisions.

Join Our Visionary Team at Runna!At Runna, we are on a mission to create the premier training platform for runners. Our innovative app empowers everyday athletes to excel, providing access to top-notch training, expert coaching, and a supportive community whether you're aiming to improve your 5k or preparing for your first marathon.Our rapid growth is fueled by a strong vision, backed by a recent $6.5M funding round led by JamJar and supported by Eka Ventures, Venrex, and Creator Ventures. In 2024, we had the honor of being named one of Apple’s three global finalists for the iPhone app of the year, and in 2025, we proudly became a part of Strava!We aspire to be the leading global training platform for millions of runners. With our recent acquisition by Strava accelerating our growth, this is an exciting time to join us. As part of our dynamic Train Team, which includes over 35 professionals from engineering, product, design, and coaching, you will play a crucial role in delivering exceptional training experiences to hundreds of thousands of runners worldwide. You will engage in developing personalized training plans at scale, analyzing performance data, and providing insights to our users based on their training and environmental conditions.We embrace a flexible hybrid working model, requiring you to be on-site three days a week at our London office.

Begin your journey with us and thrive in your career.Are you eager to collaborate with a team of skilled modellers dedicated to revolutionizing the water sector?Join our innovative and diverse Water Team as a Senior Wastewater Hydraulic Modeller. You will have the flexibility to work from one of our offices in the UK or Ireland while benefiting from our adaptable hybrid working arrangement.As a vital contributor, you will play an essential role in executing transformative water projects both within the UK and internationally. We are committed to developing significant flood mitigation strategies, enhancing pollution control measures, and advancing infrastructure initiatives. This diversity of projects will be pivotal for your ongoing professional growth. Our unique methodology integrates our modelling team with broader project teams, allowing for close collaboration with experts across various disciplines to devise comprehensive solutions.As a leading authority in Blue-Green infrastructure and nature-based solutions, we partner with both public and private sector clients such as Severn Trent, Anglian Water, Northern Ireland Water, the Environment Agency, LLFAs, and several other infrastructure providers. Our offerings include Flood Risk Assessments, Drainage Strategies, Outline Business Cases, hydraulic models, and detailed designs. We establish industry benchmarks by providing guidance that defines best practices, positioning AECOM at the forefront of the water industry. This role presents a remarkable opportunity to contribute to a talented and diverse team devoted to innovation, teamwork, and efficiency.Your responsibilities will include:Model Development: Construct hydraulic models and validate sewer networks; oversee integrated model development, assist in project scoping and planning, including flow survey validation, and devise catchment-wide strategic solutions addressing flooding and pollution challenges.Technical Expertise: Drive technical innovation through the application of cutting-edge technologies; develop solutions for our clients and create project scopes and tender responses.Reporting: Prepare and present technical reports, presentations, and documentation to effectively communicate modelling outcomes utilizing strong communication skills.Leadership: Mentor and guide team members in their professional development and cultivate positive relationships with clients.Quality Assurance: Review hydraulic models, calculations, and technical reports to ensure adherence to quality standards and compliance with modelling specifications.If you are passionate about innovation and transforming ambitious ideas into reality, AECOM invites you to join us. Be part of a team that not only builds infrastructure but also uplifts communities and enhances lives. Follow our AECOM Water page on LinkedIn for updates on our projects and initiatives.

Join Our Team as a Senior Modelling Engineer II!At Runna, we are assembling a dynamic team dedicated to creating the leading training platform for runners worldwide. Our mission is to empower everyday runners to excel by providing an exceptional app that offers top-tier training, coaching, and a supportive community, whether you're aiming to improve your 5k performance or preparing for your first marathon.Our growth has been remarkable! In November 2023, we successfully closed a $6.5 million funding round led by JamJar, with contributions from Eka Ventures, Venrex, and Creator Ventures. In 2024, we were honored to be recognized by Apple as one of the three global finalists for the iPhone App of the Year, showcasing the innovation and impact of our platform. Furthermore, in 2025, we became part of the Strava family!Our ambition is bold: to be the premier global training platform for millions of runners around the globe. As we accelerate our journey with the recent acquisition by Strava, now is an exciting time to become a part of something significant. The Train Team, a cross-functional group of over 35 professionals, is at the core of Runna’s mission: delivering outstanding training experiences to hundreds of thousands of runners globally. We focus on creating and dynamically adjusting optimal, personalized training plans at scale, analyzing performance data for training adjustments, and providing users with valuable insights based on their training and environment.We embrace a flexible hybrid working model, requiring you to be on-site three days a week at our London office.

Are you ready to drive change? Join AnyVan and transform the way we move anything, anywhere. Here, you can build a fast-paced career that matches our innovative approach to logistics.Founded in 2009 by our visionary CEO Angus, AnyVan was born from a simple observation: too many vans were on the road half-empty. We set out to revolutionize logistics technology, aiming to reduce wasted miles by efficiently filling those empty spaces.Today, we proudly serve over 5 million customers across the UK and Europe, supported by a dedicated team of 400 AnyVanners based in London, Cape Town, and Bogota. Together, we are committed to making a difference by saving 8,520 tonnes of carbon emissions annually.At the heart of our rapidly growing logistics marketplace is a dynamic interplay of supply, demand, and the customers eager to receive their belongings.This is where you come in.We are seeking a Senior Pricing Data Scientist—a professional who blends data science, economics, and storytelling to create models that elegantly manage complex systems.If you're passionate about transforming chaotic marketplaces into well-functioning systems, we want you to shape our pricing engines, conduct adaptive experiments, develop new data science products, and articulate complex insights into impactful narratives for the business.If you're excited about driving impact through experimentation, refining state-of-the-art pricing models, and tackling high-stakes challenges, come take the wheel! Key Responsibilities: Develop and Enhance ML Pricing Engines Craft and implement innovative pricing models that empower AnyVan to make informed decisions and foster a thriving marketplace. Conduct Adaptive Experiments Deploy systems that learn dynamically from customer behaviors, ensuring our pricing adapts to the ever-evolving marketplace. Innovate Data Science Products Identify opportunities, devise solutions, and deliver tools that elevate business processes and make data indispensable. Communicate Complex Insights Clearly Transform intricate models into engaging, impactful narratives for stakeholders.

Relay is revolutionizing the logistics landscape. With the backing of Europe’s largest logistics Series A funding of $35M, spearheaded by innovative deep-tech investors Plural, Relay is outpacing 99.98% of venture-backed startups. We are curating a highly skilled team that is setting new benchmarks in the logistics industry.Our Mission at Relay is to eliminate friction in commerce. We recognize that exorbitant delivery costs serve as a hidden barrier to e-commerce, limiting market participation and product offerings online. Our vision is to create a world where goods can traverse boundaries with ease, enhancing accessibility and convenience for all consumers.About Our Team• A dynamic group of approximately 110 professionals, with over 50% specializing in engineering, product development, and data science.• Our team boasts 45+ advanced degrees in disciplines including computer science, mathematics, and operations research.• We manage thousands of data points for each parcel we handle, harnessing analytics for informed decision-making.• Our culture thrives on first-principles thinking, rapid feedback cycles, and a commitment to continuous experimentation.Role OverviewAs a Senior Data Scientist within the Network squad, you will play a pivotal role in enhancing our forecasting engine, which is essential for operational efficiency. Your contributions will directly influence critical decisions across multiple teams at Relay. You will collaborate with fellow Data Scientists and Analysts, leveraging diverse expertise to tackle challenges in demand forecasting, expansion modeling, parcel intelligence, and sortation predictions. Your specific domain focus will align with your strengths and the squad's priorities.Your responsibilities may include developing models that guide Relay's expansion strategies, determining optimal new locations, forecasting parcel dimensions for effective routing and logistics, and refining our operational models to ensure cost efficiency across the network.

Join Almedia as a Data Scientist, where you will play a crucial role in transforming data into actionable insights. Collaborate with cross-functional teams to analyze complex datasets, develop predictive models, and support data-driven decision-making.

Join OakNorth, where we are dedicated to empowering the UK’s most ambitious businesses. Since our inception in 2015, we have successfully lent over $18 billion across the UK and US, contributing to the creation of more than 58,000 new homes and 36,000 new jobs, while supporting hundreds of thousands of personal savers, all driving growth in the UK economy.Our lending operations serve as the backbone of our growth strategy, further enhanced by our expanding services in Business Banking and Personal Savings. We are looking for a Senior Fullstack Engineer to lead our digital lending initiatives and quantitative modelling efforts.

“Are you ready to make a significant impact in the Water Industry as part of a dedicated team of flood risk specialists?” Join our innovative and multidisciplinary Water Team as a Principal Flood Modeller in one of our UK offices, benefiting from our flexible hybrid working model. As a senior technical leader, you will mentor junior staff and strive to enhance our services primarily for the Environment Agency and private sector clients.At AECOM, we are pioneers in innovation, delivering an impressive array of water programs and projects through long-term collaborations with key clients. We have secured positions on major frameworks with the Environment Agency, National Grid, Wessex Water, Anglian Water, National Highways, Southern Water, and South West Water. Alongside our established major infrastructure clients, we have an extensive pipeline of projects that we would be thrilled for you to be part of.Key Responsibilities:Technical Expert: Spearhead flood flow estimations using methodologies outlined in the Flood Estimations Handbook. Design and validate hydraulic models (utilizing software such as Flood Modeller, TUFLOW, HEC-RAS, and InfoWorks ICM) to support flood alleviation schemes, flood risk assessments, river restoration projects, or the Environment Agency’s flood maps.Project Delivery: Lead the development of tenders for a range of projects from innovative single initiatives to multimillion-pound framework contracts. Create and assess high-quality technical reports that document model constructions and uncertainties in the model build process. Conceptualize and define modelling and hydrological strategies, taking into account the associated risks and opportunities.Collaboration: Collaborate closely with clients and teams of engineers and technical specialists to facilitate a diverse range of fluvial, coastal, surface water, or drainage flood risk management projects.Leadership: Mentor team members to support their professional growth and foster relationships with clients and other technical disciplines.Quality Assurance: Stay informed about legislative and guideline developments that may impact our services. Utilize AECOM’s project management systems to ensure high-quality outputs for our clients in line with the agreed timelines and budgets.If you’re passionate about innovation and transforming ambitious ideas into reality, we want to hear from you! Follow our AECOM Water page on LinkedIn to stay informed about the impactful projects we are undertaking and witness the difference we are making in the industry!Join us and grow with AECOM.

Join our dynamic team at Axle Careers as a Data Scientist, where you will leverage your analytical skills to extract meaningful insights from complex datasets. You will collaborate with cross-functional teams to develop innovative data-driven solutions that enhance business performance and drive strategic decision-making.

About Us At Ki Insurance, we’re in the business of insuring some of the most exciting ventures around the globe—from space shuttles and world tours to wind farms and even professional footballers’ legs.Our mission is clear: to digitally disrupt and revolutionize an industry that has remained unchanged for over 335 years. Partnering with Google and UCL, we have developed an innovative platform that leverages algorithms, machine learning, and large language models to deliver rapid insurance quotes—within seconds instead of days.As the world’s largest algorithmic insurance carrier, we are proud to be the fastest-growing syndicate in the Lloyd's of London market, achieving an unprecedented $100 million in profit within just three years.Our diverse teams work collaboratively in an agile environment, striving to provide the best possible experience for our customers. As we set our sights on ambitious future goals, we are eager to welcome brilliant minds who are ready to challenge the status quo and explore new horizons with us.Your RoleWe are seeking a Senior Analyst to join our team at Ki Insurance. In this pivotal role, you will ensure that our underwriters receive prompt, consistent, and precise service aligned with the risk aggregation strategy established with the Senior Manager (Catastrophe Modelling) and Head of Risk Aggregation.With your expertise in providing comprehensive and accurate exposure data and modelled loss information, you will facilitate timely reporting for both internal and external stakeholders, ensuring compliance with internal guidelines and regulatory standards.Your role will involve enhancing business understanding of its risk profile, enabling effective aggregate deployment, and continuously seeking opportunities to develop, streamline, and implement best practices for the risk aggregation function, while ensuring alignment across various business classes and modelling applications (e.g., ORI and Pricing). Additionally, you will oversee the daily operations, relationships, and outputs of our outsourced business partner related to relevant modelling and data entry.Key Responsibilities Collaborate with the Risk Aggregation team and relevant functions (capital modelling, actuarial, and ERM) to ensure that modelling processes and assumptions are closely aligned and meet regulatory standards.Deliver accurate pricing, analytics, management information, and reporting to stakeholders (including underwriting and ORI placement teams) in a timely manner.Oversee the quality of exposure data and the data production from Ki's processing teams.Provide subject matter expertise for broader risk aggregation projects and deliverables (e.g., Ki's risk perspective and ORI).

Join Monzo as an IFRS9 Modeller and play a crucial role in shaping our financial strategies. You will be responsible for developing and maintaining IFRS9 models, ensuring accurate credit risk assessments and supporting our growth in the banking sector.