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Taher Ben AbdallahTB

Taher Ben Abdallah

Tech Lead | Expert Java & Architecture Backend

€680/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Taher

Java Engineer/Tech Lead – Expert in Backend Architecture and Financial Solutions

With over 10 years of experience in backend development and architecture, I have supported leading financial institutions (Amundi, BNP Paribas, Caceis) in modernizing and optimizing their systems.

✅ Technical Expertise: Java (11+), Spring Boot, Spring Batch, REST APIs, Oracle, Docker, Jenkins.
✅ Project Management and Leadership: Managed development teams (up to 7 people), Agile/Scrum, SAFe transformation.
✅ Performance and Security: Optimization of complex architectures, integration of Cloud and CI/CD solutions, implementation of robust integration tests.
✅ Finance & Risk Management: Development of execution engines for managing client portfolio constraints, risks, and performance.

I am available to assist you in the design and development of your strategic projects. Contact me to discuss!
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Paris (up to 50km), Lyon (up to 20km), Nice (up to 20km)

Experience

  • Amundi
    Tech Lead
    January 2022 - January 2025 (3 years)
    Context: Technical lead for the Alto Constraint application, intended for the administration of investment constraints (creation, update, archiving, assignment to client portfolios). Technical lead for the Constraint, Performance, and Risk areas. Main missions:
    🔹 Initial phase (Scrum, 2-week sprints) Dual role: Lead Developer & Product Owner. Gathering business requirements from business analysts and clients. Writing functional specifications and technical documentation on Jira and Confluence. Task allocation and team monitoring (4 developers). Conducting bi-weekly demos to validate project progress. UML design of the Alto Constraint application with API integration to expose constraint-related data and enable communication with other systems. Proposal and implementation of Test Container for integration tests following database lock issues.
    🔹 Transition to SAFe Dual role: Tech Lead & Scrum Master. Evolution of the team into a Feature Team (7 people) with 1 PO, 4 developers, 2 business analysts. Participation in agile transformation and adoption of the SAFe framework within the Wealth Asset Management department. SAFe 6 Agilist certification obtained in May 2023. Coaching the team on new Agile practices and facilitating ceremonies (PI Planning, Sprint Reviews, Retrospectives). Parallel management of several applications: Alto Constraint, Alto PM (Portfolio Management), Alto Core, Alto ICCS (constraint execution engine). Implementation of services for AUM performance calculation, alerts and losses (Alert and Loss), and client portfolio risk calculation. Implementation of REST APIs enabling communication between different applications. Use of RestEasy to expose client portfolio performance and risks.
  • BNP Paribas Cardif
    Senior Developer – CARAT Project
    January 2020 - January 2022 (2 years)
    Context: Team of 7 people (including 1 PO and 1 Scrum Master). Agile Methodology (Scrum, 15-day sprints). Refactoring of the REF part (Security Reference Data, Counterparty Reference Data, Portfolio Reference Data, etc.). Participation in the development and production deployment of the CARAT project. Main missions:
    🔹 Technical referent within the team.
    🔹 Active participation in Scrum events (daily meetings, sprint planning, sprint review, retrospective).
    🔹 Development and optimization of batches (performance calculation, IFI, etc.).
    🔹 Design and development of REST Security Data APIs.
    🔹 Development of Korn Shell (ksh) scripts to automate data collection from MorningStar and Bloomberg providers (sending via CFT, generating requests, transmitting signals, etc.).
    🔹 Development and optimization of Oracle views.
    🔹 Implementation of DBLINK to allow consuming applications to access CARAT data.
    🔹 Business assistance and support for teams on application usage.
    🔹 Continuous delivery of new features to production.
    🔹 Stabilization and maintenance of non-production environments.
  • Vermeg
    Crédit Agricole - CACEIS
    October 2015 - December 2016 (1 year and 2 months)
    Tunis, Tunisia
    Assignment at CACEIS Bank France (Crédit Agricole)
    Missions performed:
    🔹 Participation in the implementation of the Kernel framework (Security Management Application Generation Engine) – 1 year
    Design of UML models to structure the framework architecture.
    Development of shared technical modules for various applications.
    Implementation of reusable business processes to optimize development.
    Writing technical documentation detailing the framework's implementation and usage.
    🔹 Design and development of the SSI (Standard Settlement Instruction) module – 2 months
    Writing functional and technical specifications.
    Study, design, and development of the SSI module for repo operations.
    Implementation of business processes to automate the processing of settlement instructions.

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Education

  • Computer Engineering Degree – Software Engineering Specialization
    2014
    Diplôme d'Ingénieur Informatique – Spécialité Génie Logiciel
  • Preparatory Studies
    National School of Computer Science (ENSI)
    2011
    Études Préparatoires

Certifications

Skill set

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