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Gregory NjankouGN

Gregory Njankou

Business Analyst Senior | Payments Expert

€735/day
Paris, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Gregory

Payments Expert | SEPA | Interbank | ISO 20022


Are you facing complex issues related to interbank exchanges, SEPA flows, or payment methods?

For over 14 years, I have been assisting banking players in managing, securing, and optimizing their financial flows and payment systems.

I have collaborated with major institutions such as BNP Paribas, Société Générale, La Banque Postale, and Ma French Bank on critical topics combining compliance, technical, and operational aspects.

My Role

To bridge the gap between regulation, business, and technology to transform complex issues into concrete and operational solutions.

What I Do For You

  • Analysis of SEPA flows and interbank incidents
  • Management of rejections, anomalies, and critical issues
  • Securing regulatory compliance
  • Drafting clear and actionable functional specifications
  • Coordination between business and IT teams
  • Support on SEPA, SEPA Mail, VOP, XML

Areas of Expertise

  • Payment methods & interbank flows
  • SEPA & ISO 20022 standards
  • Banking & regulatory compliance
  • Financial data analysis
  • Complex project coordination

My Added Value

  • Field expertise in demanding banking environments
  • Ability to quickly resolve critical situations
  • Global vision: regulation + flows + operations
  • Rapid integration within teams

Use Cases

  • Migration to ISO 20022
  • Securing SEPA flows
  • Resolution of interbank incidents
  • Structuring of payment-related projects

Need an expert to secure your SEPA flows, payment methods, or interbank exchanges?
Let's discuss to quickly define your challenges.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Toulouse (up to 50km), Bordeaux (up to 50km)

Experience

  • Ma French Bank
    Business Owner Project Manager for Payments
    BANKING AND INSURANCE
    September 2020 - June 2025 (4 years and 9 months)
    Paris, France
    End-to-end management of the payments domain:
    - Analysis of regulatory changes,
    - Drafting of functional specifications,
    - Coordination of development and acceptance teams.
    - Migration of ISO 20022 flows within the 2023 rulebooks.
    - Management of production incidents and tracking of SEPA anomalies.
    Payment Methods ISO 20022 XML Business Owner Project Manager Project Management
  • BNPP
    Project Manager for Commercial Card Platform
    BANKING AND INSURANCE
    July 2017 - November 2019 (2 years and 4 months)
    Levallois-Perret, France
    • Implementation project for new clients on the BNP commercial card platform
    • Execution of business owner tasks
    • Exchange and challenge with development teams
    • Coordination of various stakeholders
    • Training for back office and marketing teams
    • Exchange with marketing teams
    • Updating documentation
    • Development of various activity monitoring reports
    Card Processing sepamail Project Management Budget Management XML/JSON
  • La Banque postale
    SepaMail Project Manager
    BANKING AND INSURANCE
    June 2016 - July 2017 (1 year and 1 month)
    Paris, France
    • Implementation of the SEPAMAIL offer
    • Contributor to the writing of the SepaMail standard 1606
    • Execution of business owner tasks
    • Leading study workshops with business units
    • Reviewing and challenging feedback from development teams
    • Validating documents produced by the development team
    • Communicating the progress of various topics to the business unit
    • Participating in various follow-up committees, project committees, and leading MOA/business committees.
    • Alerting on project-related risks
    • Participation in collecting various LABELS for CEP (Risk, Process, Compliance, Taxation, Legal, IT...)
    • Definition of processes and organization
    • Auditing concerned processes (process mapping, flow analysis...)
    • Participating in the redesign of business processes
    • Implementation and monitoring of a pilot client
    • Participation in various SEPAMAIL market committees: standards committee, operational committee, and Task-Force Diamond
    sepamail Business Owner Project Manager Project Management Project Management Functional Acceptance

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Education

  • Master 2 Banking
    Université Paris X Nanterre
    2009
    Master 2 Banque
  • Bachelor's Degree in Economics
    Université Paris I la Sorbonne
    2007
    Licence Economie

Skill set

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