Principal Data Scientist – Financial Crime Model Validation  at Commonwealth Bank | AU | Rezi

Principal Data Scientist – Financial Crime Model Validation  at Commonwealth Bank

Principal Data Scientist – Financial Crime Model Validation 

Commonwealth Bank · AU

Yesterday

Principal Data Scientist – Financial Crime Model Validation 

Commonwealth Bank · AU

2 days ago
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About the Role

Lead a new financial crime model validation capability and help shape how modern machine learning and AI is adopted in a highly regulated environment. Join a team building dedicated expertise to support the move from rule-based alerting to machine learning/GenAI-based model validation. Grow your impact with a bank investing in data science, model governance and AI-enabled tooling across the model lifecycle.

Responsibilities

  • Lead the financial crime model validation stream across a newly created capability, helping shape how the work is planned and delivered.
  • Validate machine learning models designed to replace legacy rule-based financial crime alerting approaches.
  • Provide technical leadership on model design, statistical methods, machine learning and GenAI approaches in a regulated environment.
  • Support computationally intensive financial crime use cases, including models that scan high volumes of transaction data over extended time periods to generate customer-level features.
  • Guide stakeholders through model risk, governance and validation requirements in a way that is practical and commercially aware.
  • Work closely with stakeholders to solve complex problems, negotiate priorities and support delivery from end to end.
  • Contribute hands-on technical expertise while remaining an individual contributor rather than a formal people manager.
  • Help uplift capability within the team by mentoring others through project delivery and model validation practice.
  • Work in a Python, PySpark and AWS data science environment, with growing exposure to AI-enabled ways of working across the data science lifecycle.

Requirements

  • Deep technical credibility, sound judgement and the confidence to lead complex validation work in a highly regulated domain.
  • Strong machine learning foundations with experience in financial crime, model risk or model validation.
  • Experience in financial crime models, ideally from either a model validation or model development background.
  • Strong knowledge of statistics, machine learning and data science, including the ability to assess how models are built and whether they are fit for purpose.
  • Experience leading complex project work end to end, without needing formal line management responsibility.
  • A strong risk and governance mindset, particularly in regulated or assurance-heavy environments.
  • Confidence working with senior stakeholders and navigating competing priorities with sound judgement.
  • Strong hands-on technical capability in Python, PySpark and AWS, with experience building scalable data pipelines and engineering features from high-volume datasets.
  • The ability to coach and mentor others through technical delivery and validation challenges.
  • Curiosity to broaden into adjacent model domains over time as the team rotates talent across use cases.

Skills

  • Machine Learning
  • AI
  • GenAI
  • Data Science
  • Model Validation
  • Financial Crime
  • Model Risk
  • Statistics
  • Python
  • PySpark
  • AWS
  • Data Pipelines
  • Feature Engineering

Location

  • Remote

Work Type

  • Full-time

Experience Level

  • Lead
  • Senior

About the Company

  • At CommBank, Data Science is evolving quickly, with stronger tooling, reusable assets and AI-enabled support helping teams move from experimentation to production with greater speed, rigour and impact.
  • At CommBank, we're committed to creating an accessible, inclusive and respectful workplace.
  • We welcome applications from people of all backgrounds and we're particularly committed to making a positive difference for Aboriginal and/or Torres Strait Islander Peoples.

Equal Opportunity

  • We're committed to creating an accessible, inclusive and respectful workplace.
  • We welcome applications from people of all backgrounds and we're particularly committed to making a positive difference for Aboriginal and/or Torres Strait Islander Peoples.