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Staff Data Scientist

Monzo Bank· Data
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Hybrid (London/Barcelona (UK remote))£124.4k - £165kfull-timePosted 2w ago

About the role

Senior individual contributor data science role at Monzo, focused on leading strategically important, business-critical data science work, shaping data strategy and coaching others.

Responsibilities

  • Shape and lead the data strategy for a large domain or collective, connecting customer and commercial goals to a clear portfolio of high-impact Data Science work
  • Identify, frame and lead strategically important problems where the path is ambiguous, dependencies span teams, and decisions involve meaningful customer, commercial, regulatory or operational trade-offs
  • Partner with senior leaders across product, engineering, ML, design, research, risk and operations, bringing an independent technical perspective that influences strategy and turns it into measurable outcomes
  • Establish measurement strategies and metric maps that clarify how customer behaviour, product changes and business outcomes connect, enabling teams to test assumptions and make better decisions faster
  • Set and evolve best practices for experimentation, causal inference, forecasting, optimisation and decision science, choosing methods that are proportionate to the decision and its risks
  • Remain hands-on where your expertise is most valuable: exploring complex data, designing analyses and experiments, building models or prototypes, and resolving the hardest technical questions
  • Steward critical data products and initiatives end-to-end, ensuring they are robust, well-governed, clearly documented and adopted by the people who need them
  • Balance pace and analytical rigour, making pragmatic trade-offs while protecting the quality, reproducibility and interpretability of your work
  • Raise Data Science standards across Monzo through technical direction, proposals, reviews, reusable methods and thoughtful challenge
  • Coach and mentor data scientists and analytics engineers, using live projects and wider discipline initiatives to build sustainable capability beyond your own individual output

Qualifications

  • Exceptional track record of leading complex, business-critical Data Science work from ambiguous problem framing through to measurable outcomes
  • Shaped strategy across a large product or business domain and can influence senior leaders through clear, independent judgement
  • Deep expertise across several Data Science disciplines and can set the technical direction for work involving significant complexity, uncertainty or risk
  • Ability to create clarity across organisational boundaries, resolve difficult dependencies and turn long-term strategy into decisive action
  • Strong communication of complex ideas, assumptions and risks with clarity, and high bar for analytical quality, governance and reproducibility
  • Hands-on practitioner with SQL and Python, while raising standards and multiplying impact of experienced colleagues

Skills

Required:SQLPython

Benefits

  • Benefits listed on Monzo careers page
  • Learning budget of £1,000 a year for books, training courses and conferences
  • Relocation assistance to UK or Spain
  • Visa sponsorship
  • Flexible working hours
  • Part-time option where feasible
Last updated Oct 7, 2026. Interested? Apply on the company site.
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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!

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