Monzo Bank

Senior Staff Machine Learning Scientist – Operations

Monzo Bank

full-time

Posted on:

Location Type: Hybrid

Location: CardiffUnited Kingdom

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Salary

💰 £157,000 - £210,000 per year

Job Level

About the role

  • Define and execute the strategic vision for ML across Operations and adjacent business areas
  • Define reusable ML architectures and modelling standards adopted by multiple teams
  • Guide the development of complex systems that serve as the foundation for multiple products and problem spaces
  • Act as a senior technical authority, setting best practices and architectural patterns for ML across the organization
  • Collaborate with Engineering, Product, and Leadership teams to integrate ML-driven solutions into core business processes
  • Advocate for and implement responsible AI practices, ensuring fairness, robustness, and transparency in our models
  • Mentor and coach ML practitioners at all levels, fostering a culture of continuous learning and innovation
  • Engage with the broader ML community, sharing knowledge through conferences, blog posts, and open-source contributions

Requirements

  • Proven track record of leading large-scale ML initiatives with tangible business impact, preferably in a fast-moving tech company
  • Led the development and adoption of reusable ML modelling patterns, architectures, or infra across large organizations
  • Experience developing state-of-the-art deep learning models, LLMs, and advanced AI architectures
  • Industry expert in ML model development, deployment, and MLOps at scale
  • Deeply comfortable with Python, SQL, and ML frameworks (e.g., TensorFlow, PyTorch)
  • Experience working in a microservices architecture (Go Lang experience is a plus)
  • Extensive experience with real-time ML applications, reinforcement learning, graph-based models, and/or NLP
  • Ability to communicate complex ML concepts to technical and non-technical audiences, influencing senior stakeholders and executives
  • Thrive in ambiguous, fast-changing environments with a proactive, problem-solving mindset
  • A passion for mentoring, can elevate the ML skill set across the organization influencing both cross-functional and executive strategy
Benefits
  • We can help you relocate to the UK
  • We can sponsor visas
  • This role can be based in our London office, but we're open to distributed working within the UK (with ad hoc meetings in London)
  • Flexible working hours and trust you to work enough hours to do your job well, at times that suit you and your team
  • Learning budget of £1,000 a year for training courses and conferences
  • If you prefer to work part-time, we'll make this happen whenever we can - whether this is to help you meet other commitments or strike a great work-life balance
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
machine learningdeep learninglarge language modelsMLOpsPythonSQLTensorFlowPyTorchreinforcement learningnatural language processing
Soft Skills
mentoringcoachingcommunicationproblem-solvinginfluencingcollaborationcontinuous learninginnovationadaptabilityleadership