Quantitative Analyst at mustard-systems | London

About Ki Insurance Ki Insurance operates at the intersection of technology and insurance, covering everything from space missions to major sporting events. The company partners with organizations such as Google and UCL to build a digital platform that uses algorithms, machine learning, and large language models to generate insurance quotes in seconds. As the largest global algorithmic insurance carrier and the fastest-growing syndicate in the Lloyd's of London market, Ki achieved $100 million in profit within its first three years. Teams work collaboratively, using agile methods to improve the customer experience and drive innovation in a centuries-old industry. Role Overview: Catastrophe Modelling Analyst The Catastrophe Modelling Analyst joins the Risk Aggregation team, supporting underwriters with timely, consistent, and accurate services that align with risk aggregation strategies. This role ensures the business maintains a clear understanding of its risk profile by delivering complete exposure data and modeled loss information. Main Responsibilities Produce accurate pricing, analytics, management information, and reports for stakeholders, including underwriting and ORI placement teams, within set deadlines. Monitor and maintain the quality of exposure data and outputs from Ki’s processing teams. Offer expertise and insights for broader risk aggregation initiatives and deliverables. Develop and sustain strong working relationships with internal and external stakeholders, such as model vendors and brokers. Provide support to colleagues within the Risk Aggregation team as required. Work with other teams to strengthen product development and expand Ki’s risk perspective across different business classes and offerings. Help identify and deliver new revenue opportunities. Location London, England, United Kingdom

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).

Who are we?At Ki, we’re not just another insurance company – we’re a trailblazer in the industry! We insure exciting ventures, from space shuttles and world tours to wind farms and even the legs of footballers.Our mission? To disrupt a 335-year-old market through digital innovation. By collaborating with giants like Google and UCL, we've developed a cutting-edge platform that leverages algorithms, machine learning, and large language models to provide insurance brokers with instant quotes, transforming a process that typically takes days.Proudly recognized as the largest global algorithmic insurance carrier, Ki stands as 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, dedicated to creating the best possible experience for our clients. With ambitious goals, we seek brilliant minds to challenge the norm and help us explore new frontiers.Your Role:As a key member of the risk aggregation team, you will empower underwriters by providing a swift, reliable, and precise service aligned with our risk aggregation strategy. You will be responsible for delivering comprehensive non-modelled exposure data and modelled loss information for all non-natural perils, ensuring that we maintain a robust understanding of our risk profile.Your Responsibilities: Assist in managing and monitoring exposures to non-natural catastrophe risks such as Cyber, ensuring alignment with our risk appetites and tolerances.Develop, validate, and integrate scenario-based models and tools for assessing non-natural catastrophe risks.Collaborate with underwriting and other stakeholders to maintain a coherent view of risk, automate workflows, and enhance analytics and decision-making processes.Stay abreast of emerging non-natural catastrophe threats, refining our understanding of risk in light of the latest developments.Produce management information reports, develop data visualization dashboards, and support the digitization of our risk assessment processes to improve efficiency and business planning.Work cross-functionally to support product development and enhance Ki’s risk perspective across various business classes and product offerings.Contribute to the identification and delivery of new revenue opportunities.

Role overview Funding Circle seeks a Lead Model Validation Analyst in London. This role centers on upholding the integrity and accuracy of financial models that inform business decisions and manage risk. The analyst will play a central part in ensuring models meet high standards and support the company’s goals. What you will do Develop and enhance methodologies for validating financial models. Carry out thorough reviews to evaluate model performance and dependability. Collaborate with various teams to improve analytical processes across the business. Contribute to shaping the model risk management framework to promote transparency and uphold high standards. Impact This position is vital to Funding Circle’s commitment to strong model governance and analytical quality. The analyst’s work supports clear, informed decision-making and reinforces transparency throughout the company.

Unlock Your Potential with Trust.For decades, the payment clearing process has remained stagnant. At ClearBank, we challenge the norm. We strive to revolutionize banking infrastructure to be faster, safer, more reliable, and accessible to all. Here, you can think innovatively and responsibly to discover optimal solutions.When you operate in a realm of inherent trust, it fosters safety. This safety empowers you to be courageous, to question conventions, to learn from failures, and to explore new possibilities. At ClearBank, trust is at the core of our operations. We are not merely expected to earn it; we are entrusted with it. This means addressing issues promptly, discerning good risks, and understanding that the ability to act does not always equate to the necessity to do so.Your Role Awaits You:Joining our Financial Crimes Operations Models Management team as a Blockchain & Fraud Models Analyst means taking ownership of developing and maintaining monitoring controls for blockchain-based products and analyzing fraudulent payment activities. Reporting to the Senior Manager of Models Management, you will play a key role in safeguarding our financial ecosystem.Key Responsibilities:Design and optimize robust rules and models for monitoring blockchain transactions and screening for fraudulent payments, ensuring comprehensive risk coverage and operational efficiency to support our products and clientele.Analyze blockchain and payment transaction behaviors to identify emerging typologies of financial crime, such as cross-chain activities, high-risk wallet exposures, and transaction velocity risks.Collaborate with data scientists, engineers, and compliance teams to enhance monitoring performance through improved rule logic, thresholds, and outputs.Oversee the effectiveness of monitoring rules and models, maintaining rule health metrics, dashboards, and performance reports.Conduct root cause analyses of monitoring incidents and model performance issues, recommending and implementing data-driven enhancements.Engage with the 1st and 2nd Line of Defence teams, as well as external vendors, to ensure monitoring controls are well-calibrated, documented, and aligned with risk appetites.Contribute to strategic initiatives aimed at enhancing the organization's financial crime strategies.

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.

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.

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.

“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.

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.

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.

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.

Note: Candidates must be available to commence work in January 2026 and possess the right to work in the UK. We are unable to sponsor visas.The award-winning Film & Episodic Studio at Framestore collaborates with leading filmmakers and storytellers to design, plan, and create stunning visuals. We are committed to discovering innovative artistic solutions that enhance their vision and elevate the standards of visual effects in cinema.At Framestore, we merge creativity with cutting-edge technology to breathe life into our creations. Our mission is to redefine what is possible every day, fueled by imagination and a forward-thinking approach.As a Character & Creature Modeller, you will be instrumental in producing high-fidelity CG models for use in premium visual effects productions. You will work from various reference materials, including photographs, scan data, blueprints, and concept designs, and collaborate closely with Texture Artists to ensure model and UV specifications align with VFX pipeline requirements.

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 hyperexponential as a Junior Model DeveloperAt hyperexponential (hx), we are revolutionizing the insurance industry with our AI-driven platform that informs critical decisions in a $7 trillion market. We empower insurers to make informed choices about risk and pricing, impacting vital outcomes like successful space launches, the rollout of autonomous vehicles, and community recovery post-disasters.Our innovative platform integrates data, artificial intelligence, and expert insights, streamlining the decision-making process for insurers. By transforming traditional methods, we enable our clients to act swiftly and confidently, tackling greater risks.Supported by leading investors like a16z, Highland Europe, and Battery Ventures, we are expanding our reach globally, serving nearly 50 of the largest insurers worldwide with an impressive retention rate and billions in premiums.What started as a singular product in one region has blossomed into a comprehensive, multi-product platform that enhances every aspect of pricing and underwriting. Our focus on AI allows us to develop groundbreaking tools, including the world’s first domain-specific AI peer programmer for insurance.At hx, our team is our strength. Here, your impact is measured not by your title but by the challenges you embrace and the dedication you show. Working alongside talented peers, you will tackle complex problems and contribute to a resilient company culture.If you are ready to make a difference, come join us in shaping the future of insurance technology.

About NextStep NextStep connects experienced consulting professionals with roles that make a difference, using AI-driven matching technology. We work with organizations across multiple sectors to place talent where it matters most. This Operating Model Manager position is for one of our clients, a global firm that values meaningful impact and high standards. About the Client Our client is a global professional services firm headquartered in London, with over 15,000 employees in 40 countries. They deliver audit, advisory, and consulting services to clients in both private and public sectors. After a period of significant growth and investment, the firm is reviewing its operating model to improve efficiency, sharpen client focus, and encourage collaboration across service lines. The Operating Model Manager will join the internal transformation team and help lead this change. Role Overview The Operating Model Manager will lead workstreams within the firm’s operating model redesign. This includes analyzing current performance, designing future-state structures, and supporting the rollout of changes. The role involves collaborating across service lines and regions to develop recommendations for senior leadership, all aimed at helping the firm reach its strategic goals. Key Responsibilities Assess current operating models across functions and service lines, including process mapping, cost analysis, and benchmarking. Design future-state operating model frameworks, covering structure, governance, shared services, and technology integration. Build business cases for proposed changes, outlining costs, benefits, risks, and implementation needs. Work with HR, Finance, and Technology teams to implement approved changes. Prepare clear, structured deliverables for review by senior leadership. Requirements 5–8 years of experience in management consulting, organizational design, or an internal transformation role, including direct work on operating model design. Strong analytical and structured thinking skills, with the ability to break down complex organizations and create evidence-based recommendations. Excellent communication skills, with experience leading high-level workshops and producing board-ready deliverables.

About hyperexponential (hx)At hyperexponential, we are pioneering an AI-driven platform designed to facilitate critical decision-making within a $7 trillion sector. Our technology influences significant outcomes, from successful space launches to the deployment of autonomous vehicles and community recovery after natural disasters.Historically, insurers have relied on outdated systems to make billion-dollar choices. We are transforming this landscape by integrating data, AI, and human expertise to streamline the journey from submission to decision. This empowers insurers to operate with speed, intelligence, and confidence in risk management.With backing from renowned investors such as a16z, Highland Europe, and Battery Ventures, we are expanding our reach globally. Nearly 50 of the largest insurers trust our platform, experiencing zero churn and billions in premiums flowing through hx.What started as a singular product in a single market has swiftly transformed into a diverse, multi-product platform that supports every phase of pricing and underwriting. At the heart of our operation is AI, demonstrated by our development of the world’s first domain-specific AI peer programmer for insurance, akin to GitHub Copilot but specialized in actuarial science. We also create agentic workflows that redefine industry standards.What sets hx apart is our remarkable team. Here, your impact is measured not by title or tenure, but by the challenges you tackle and the dedication you bring. You'll be surrounded by peers who inspire you to excel, allowing you to produce some of the most significant work of your career in a resilient organization.If this resonates with you, we invite you to join us in shaping the future.About the Model Development TeamThe hyperexponential Model Development Team (MDT) consists of a dynamic mix of engineers, actuaries, mathematicians, and data scientists. We focus exclusively on the most challenging and intriguing problems our clients encounter, where a blend of technical expertise, market acumen, and deep knowledge of hx Renew is essential.The MDT is the go-to authority on hx Renew, possessing comprehensive knowledge and experience. You will explore its capabilities and uncover innovative techniques, shortcuts, and insights. By merging this expertise with a growing understanding of insurance technology, you will present clients with the 'art of the possible' and collaborate on cutting-edge tech, alongside some of the brightest minds in both technology and insurance.

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 OLIXAt OLIX, we are at the forefront of an AI revolution, addressing the rapid growth and demand that has outpaced current infrastructure capabilities. The existing hardware frameworks are reaching their limits, and we are innovating a new paradigm to redefine efficiency and performance in computing. Our groundbreaking Optical Tensor Processing Unit (OTPU) sets a new standard for energy efficiency and performance, positioning OLIX to become a leader in the technology of the future.The Role:As the Engineering Manager for Performance Modelling, you will spearhead a dynamic team of six engineers focused on the architecture specifications of the OTPU. Your role involves validating these specifications through rigorous performance modelling techniques including roofline, functional, cycle-accurate, and power modelling. Collaborating closely with compiler, ASIC, product, and business development teams, you will ensure that architectural decisions align with customer needs and business objectives.We seek a seasoned engineering manager who can inspire a talented team to achieve impactful results for our clients and the business. Your deep technical expertise and proven ability to foster a collaborative and high-performing team culture will be crucial to navigating the complexities of hardware/software co-design.