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Abdallah AmmarAA

Abdallah Ammar

Payment Consultant

€600/day
Villejuif, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Abdallah

Senior payment consultant with 8 years of experience in the electronic payment ecosystem, I work across the entire payment chain: acceptance, acquisition, authorization, clearing, and settlement.

At Worldline since 2022 as Tech Lead, I manage complex payment specification implementation projects (EMV, NEXO FAST, FRV6) on Ingenico terminals, with strong expertise in the Vending, EV-Charging, Transport, Parking, and Open Payment sectors.

My areas of expertise:
- Mobile payment & wallets: Apple Pay (ECPV2), Luxeo, Payzily, PAN tokenization
- Embedded development: C/C++ on Ingenico (TETRA, TELIUM2) and Verifone (Engage) terminals
- Agile Project Management: Scrum Master, Backlog, Jira, delivery, L3 support
- Transactional flow analysis and critical payment incident resolution.
- Functional analysis and definition of functional and technical product specifications

I also worked at BPCE (Open Payment Project Manager) and Ingenico (Scrum Master & Consultant), giving me a complete vision from the acquirer, issuer, and terminal manufacturer perspectives.

Available for payment consulting missions, payment project management, functional/technical specifications, or expert support.
  • Arabic

    Native or bilingual

  • English

    Fluent

  • French

    Native or bilingual

Can work on-site
Villejuif (up to 50km)

Experience

  • WorldLine
    Payment Consultant
    July 2022 - Today (3 years and 11 months)
    Paris, France
    Project: Monitoring of payment flows between the acceptance system and the acquisition server and Implementation of new specifications for 'Vending', Transport, and Parking modes.

    Work performed:
    - Implementation of American Express vending mode: technical study, adaptation of the architecture based on pre-authorization.
    - Reloading of private badges with LUXEO: technical cohabitation study, real-time conflict resolution, compliance with EVA specifications.
    - ECPV2 Apple protocol: discussions with Apple on transaction without iPhone verification, identification and adaptation of VISA/Mastercard payment fields, improvement of mobile payment UX.
    - Conecs meal ticket card vending mode: acceptance/acquisition configuration, development with deferred debit, blocking of private badge reloading.
    - Vending/EV-Charging QR Code: scanning QR codes before payment (discount/loyalty), displaying QR codes post-transaction (invoice/ticket).
    - EV-Charging/Parking monitoring mode: deployment of monitoring mode on rechargeable battery terminals, definition of deep/light monitoring, writing the integration guide.
    - FRV6 Project: adaptation of Vending and EV-Charging payment flows, study of specifications, implementation of new payment fields, coordination of integration tests, delivery of releases.
    C/C++ Programming Python Jira/Confluence Git Kibana
  • BPCE
    Payment Project Manager
    January 2022 - July 2022 (6 months)
    Paris, France
    - Monitoring of TNS authorization server migration process.
    - Application configuration (Contactless payment, Distance selling, Debit/Credit/Cancellation), coordination and planning of fixes following evolutions.
    - Technical analysis of VISA and Mastercard frames (pre-authorization, information request, redress, debt recovery).
    - Regulatory monitoring of transactional flows and verification of the consistency of transaction field valuations with specifications (VISA and MC).
    - Technical analysis of VISA and Mastercard frames (pre-authorization, information request, redress, debt recovery).
    - Writing functional specifications: Remote configuration of OP terminals.
    - Validation of NXS application (Multi scheme: UPI, JCB, DFS) with Verifone and Ingenico payment terminals: Terminal configuration and test acceptance process.
    - Leading and participating in client committees and meetings.
    - Preparation, execution, and monitoring of test acceptance in qualification and go-live.
    - Reporting and task progress.
    CB2A CBAE Kanest Jira Xray Project Management
  • INGENICO
    Scrum Master
    September 2021 - January 2022 (4 months)
    Paris, France
    - Reviewing Epics with the Product Owner and breaking them down into 'User Stories'.
    - Creating Jira tickets, managing 'Dashboards', and tracking sprint progress. Collecting information and providing technical support.
    - Facilitating stand-ups, groomings, and retrospectives.
    Agile Methodology Scrum

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Education

  • Polytechnic Engineer Diploma
    Tunisia Polytechnic School
    2018
    Formation d'ingénieur polyvalente et pluridisciplinaire.

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