> Markdown version of [/jobs/ext/770132-financial-crime-solutions-data-scientist-ii](https://www.wearedevelopers.com/jobs/ext/770132-financial-crime-solutions-data-scientist-ii). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Financial Crime Solutions - Data Scientist II - **Company:** MasterCard - **Location:** London, UK - **Contract:** Permanent contract - **Skills:** Cyber Security, Python (Programming Language), Machine Learning, Pandas, Xgboost, Software Coding, Programming Languages - **Published:** June 12, 2026 - **Apply:** https://www.totaljobs.com/job/financial-scientist/mastercard-job107518413 ## About the Role Your passion is focused on the design of algorithms to solve real, pressing problems using data. You will have an interest in the financial services industry and want to tackle financial crime in the wider economy. You are excited by building products for clients and are keen to engage in the design processes this involves. Specifically: - You are familiar with Python, and with the standard data science libraries such as pandas, scikit-learn/xgboost and networkx. - You are keen to understand the data we work with and have a keen interest in how to model the behaviours it exposes. - You are able to communicate with non-tech colleagues about technical matters, and you are comfortable putting yourself in other people's shoes. - You are happy and excited to explore new programming languages, technologies, and techniques. - You have a can-do attitude, can be pragmatic where necessary, and are excited to work as part of a specialist team. You can engage in constructive criticism and aren't afraid to have your code reviewed, or design decisions discussed. ## Description As a Data Scientist, you will join one of the first teams in the world looking at payments data in the UK and across the world. In the research discipline you will help build systems that expose money laundering and detect fraud as well as work with the other data scientists and clients to understand the underlying behaviours employed by criminals. You will be product focused, working in close collaboration with our engineering and operations data scientists as well as the wider sales, consulting, and product teams. In this position, you will: - Directly contribute to project delivery - writing code, reviewing code, and delivering ML models and analytics, as well as managing a team, with responsibility for engaging with Product and Engineering counterparts on a specific product or series of projects. - Perform proof-of-concept projects, engage in product design and build prototypes. - Use the full range of data science based techniques to develop new and novel algorithms to aid existing and new financial crime products. - Be able to perform novel research to help us and our clients understand the different criminal behaviours in payments data. - Think about how derived insights can be turned into new products and services we can offer to external clients. - Be ready to learn new technologies as required and engage with legacy and future technology stacks, in the UK and internationally. - Write white papers, patents, and client facing data visualisations. - Consider the full impact of your work. This means considering privacy, security, and regulation, as well as the performance of your code and the accuracy of your models., Every person working for, or on behalf of, Mastercard is responsible for information security. All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and therefore, it is expected that the successful candidate for this position must: * Abide by Mastercard's security policies and practices; * Ensure the confidentiality and integrity of the information being accessed; * Report any suspected information security violation or breach, and * Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. Corporate Security Responsibility All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must: * Abide by Mastercard's security policies and practices; * Ensure the confidentiality and integrity of the information being accessed; * Report any suspected information security violation or breach, and * Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines. ## Related Videos - [TikTok's Privacy Innovation](https://www.wearedevelopers.com/videos/1036-tiktok-s-privacy-innovation) - [Advanced Typing in TypeScript](https://www.wearedevelopers.com/videos/496-advanced-typing-in-typescript) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [Unleashing the power of AI to prevent financial crime](https://www.wearedevelopers.com/videos/1088-unleashing-the-power-of-ai-to-prevent-financial-crime) - [Data Science on Software Data](https://www.wearedevelopers.com/videos/162-data-science-on-software-data) - [Explainable machine learning explained](https://www.wearedevelopers.com/videos/589-explainable-machine-learning-explained) ## Related Articles - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Jobs in Tech: The State of the European Market](https://www.wearedevelopers.com/magazine/575-jobs-in-tech-the-state-of-the-european-market) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)