← All roles

Lead Machine Learning Scientist, FinCrime

Monzo Bank· Data
Apply on company site
Hybrid (UK)£115k - £150kfull-timePosted 3mo ago

About the role

Lead IC role in Monzo's Financial Crime Data team, focusing on building and deploying advanced ML models to detect and prevent financial crime in real time, with opportunities to innovate and influence technical standards across the ML discipline.

Responsibilities

  • Leading the design and development of advanced real-time Machine Learning models for financial crime detection and risk assessment
  • Providing technical leadership and mentoring within the Machine Learning discipline
  • Collaborating with cross-functional squads (product, data science, backend, design) in an agile environment
  • Identifying and scoping impactful opportunities to tackle Financial Crime and Fraud using ML
  • Working with the MLOps team to improve tooling for rapid iteration and full ML lifecycle optimisations
  • Explaining and justifying ML approaches to ensure alignment with business and customer needs
  • Steering technical work to raise standards and best practices across the ML function

Qualifications

  • Multiple-year track record of leading development and deployment of advanced ML models to solve real business problems, preferably in a fast-moving tech company
  • Experience developing and shipping deep learning, graph-based, and/or sequence-based ML architectures to production with measurable business impact
  • Strong production Python coding skills and SQL; willingness to learn Go
  • Ability to operate in ambiguous environments and help teams resolve ambiguity
  • Interest in reducing financial crime through data-driven strategies
  • Product-minded with a focus on customer outcomes and data-informed decision making
  • Excellent communication skills to translate ML concepts to non-domain colleagues
  • Self-starter mindset with proactive identification of issues and opportunities
  • Experience with ML model lifecycle, experimentation, and deployment in production

Skills

Required:Machine Learning (advanced)PythonSQLReal-time ML systems
Nice to have:GoGraph-based / sequence-based architectures

Benefits

  • Relocation support to the UK
  • Visa sponsorship
  • Flexible working hours with UK distributed working arrangements
  • Learning budget of £1,000 per year for training courses and conferences
  • Additional benefits listed on the Monzo careers site
  • Part-time flexible arrangements where possible
Last updated Aug 12, 2026. Interested? Apply on the company site.
Monzo Bank logo

About Monzo Bank

A bank as smart as your phone.

YC has written a good overview of our business on their blog: https://blog.ycombinator.com/monzo-makes-money-work-for-everyone/ Our mission is to make money work for everyone. We are the UK's leading digital bank for individuals and businesses, reinventing the traditional banking industry one customer at a time. We're relentlessly mission driven and always put our customers first - from what products we chose to launch next to our transparency and use of simple language. With a Net Promoter Score of 70+, it shows. From our founding in 2015, we now have over 7 million customers in the UK (13% of UK adults) and are building out our team in the US. We've seen incredible organic growth, acquiring 150,000 customers / month in 2022, with 80% of this coming from word of mouth. Our weekly active user rate is ~60% and ~40% of our active users use us as their Main Bank account, showing that we are a product that is embedded in our users' daily lives. We've grown to ~2,450 staff (~400 of which make up the product/tech team), and are backed by YC, Stripe, Tencent, Mike Moritz, and others. Internally, we encourage an open, collaborative, and inclusive working environment - we were voted the #1 startup where people in the UK want to work for the second year running in 2022. We contribute to open source software, and we continually engage with our wonderful community. We're hiring talented, creative problem-solvers to help us build the bank of the future. Join us!

More open roles at Monzo Bank