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Nerissa Duncan is a seasoned fraud analytics expert with 20+ years of experience in data analysis, auditing, and financial reporting. She has led the development of analytics supporting the prevention and detection of fraud and scam activity, and has represented ASB Bank at various interbank forums/councils. She holds a BCom degree from the University of Auckland and is an ICAgileCertified Professional.

Credentials

  • ICAgileCertified Professional
    ICAgile
    Oct, 2019
    - May, 2026

Experience

  • ASB Bank
    • Auckland, New Zealand
    • Senior Manager Fraud Analytics
      • Nov 2020 - Present
      • Auckland, New Zealand

      I am responsible for the development of the analytics supporting the prevention and detection of fraud and scam activity. This includes:- Leading the uplift in fraud monitoring capabilities, involving a multi-year strategic roadmap including advancing fraud models/rulesets, facilitating cloud migration, assessing technology improvements alongside evolving risk landscape, improving the operational and data flow, and keeping the overall customer experience at the heart of it all- Assessing our fraud monitoring portfolio, balancing rule and model conversion rates, precision and recall rates of our machine learning models vs other rules- Prioritising the backlog of the analytics team comprising of 4 analytics specialists and 2 data scientists. This involves managing various workstreams involving project work, BAU reporting and monitoring responsibilities, and urgent matters. As part of this, provide coaching and mentorship to my team including regular 1-on-1 feedback sessions, annual objective setting, tracking progress, providing career paths across Analytics and Fraud domains.- Evaluating operational impact of technology/data changes and spikes in fraud/scam activity on our frontline teams and provide strategy on how to resolve such incidents- Continuously collaborating with stakeholders that form part of the fraud and scam lifecycle to understand the impact of our fraud monitoring portfolio as well as determine business requirements- Representing ASB at various interbank forums / councils

    • Co-Chair
      • Jan 2022 - Dec 2022
      • New Zealand

      NZ Cards Risk Council is a forum for major card issuers and card schemes in New Zealand. We discuss Card risk issues affecting the industry, consider best practices, risk management strategies, and implement and monitor the effectiveness of any agreed plans or strategy.

    • New Zealand
    • Business Consulting and Services
    • 700 & Above Employee
    • Senior Manager
      • Jul 2018 - Oct 2020

      Data Assurance Senior Manager within Risk Assurance.I was the New Zealand development lead and product owner of PwC’s Financial Processes Analyser, which is our flagship tool used for ‘Unusual Transactions Analysis’. This solution uncovers anomalies, unusual transactional behaviour and deep insights over various financial modules.I also specialised in the Revenue Assurance work stream, with experience within the airlines industry, as well as electricity and gas utilities sectors. This work involves understanding highly complex business processes and data sets, with an aim to provide assurance and insights into our clients' revenue figures.Other responsibilities include:- Interrogating complex data sets and present insights through visualisation tools to effectively communicate business opportunities, provide recommendations and uncover unusual behaviour in data.- Overall management of concurrent engagements including requirements gathering, project economics, tracking tasks against planned milestones, and keeping stakeholders updated.- Coaching team members on their career paths. This included setting annual objectives, regular coaching meetings, and completing year end performance assessments.

    • Manager
      • Jul 2014 - Jun 2018

    • Senior Associate
      • Jul 2012 - Jun 2014

      Part of the Business Intelligence & Analytics team.- Responsible for the design and execution of data analytics engagements related to spend analysis, revenue assurance, profiling of unusual transactions, and journals analysis.- Timely communication with internal and external stakeholders, including reporting of results and insights.- Coached and managed junior team members on engagements.

    • Associate
      • Jul 2009 - Jun 2012

    • Consultant
      • Nov 2010 - Mar 2011
      • Sydney

      Short-term secondment from PwC Auckland office.

    • Teaching Assistant
      • Jul 2007 - Jun 2009

      Lab Workshop Tutor and Marker for Acctg222 - Accounting Information Systems

    • Summer Intern
      • Nov 2008 - Feb 2009

  • Greenough Consulting Group
    • Burlingame, California
    • Intern
      • Jan 2008 - Feb 2008
      • Burlingame, California

Education

  • 2006 - 2009
    The University of Auckland
    BCom, Information Systems, Accounting

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Industry Focus. “Banking”

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