Yessine Feki

Participation in the GALAXY program for the transformation of BforBank's information system, aiming at the re-implementation of the Core Banking System and the modernization of the banking back-office. This strategic program supports the bank's international expansion, the evolution of its offerings, and the reduction of technical obsolescence through an event-oriented architecture, based on Domain-Driven Design (DDD), microservices, and managed services from Google Cloud Platform.

• Participation in Discovery phases in collaboration with business, architecture, and product teams to frame needs and define target solutions.

• Execution of architecture studies, production of technical documentation, and validation of compliance with program architecture standards.

• Definition and implementation of the banking domain's event-driven architecture using Kafka to ensure decoupling, scalability, and resilience of services.

• Design and development of business workflows with Temporal for managing account closure, customer relationship closure, inheritance, death, and KYC processes.

• Technical leadership of a team of 5 developers, ensuring the quality of deliverables and disseminating best practices (hexagonal architecture, code reviews, automated testing with Cucumber, monitoring).

• Implementation of solutions ensuring the reliability of asynchronous exchanges in a distributed environment: idempotence management, incident recovery, retry mechanisms, and Dead Letter Queue (DLQ) management.

• Implementation of the Outbox pattern to guarantee event publication and eliminate data loss risks between services.

• Design and optimization of high-volume batch processing for payment, standing order, and direct debit operations.

Design and development of the ILC (Intraday Liquidity Cockpit) application, enabling treasurers to manage daily liquidity and monitor real-time debits and credits for SGCIB's various accounts.

Within the GBSU/MTR/GPM department, I am the tech lead for a team of 4 developers and have participated in the following tasks:

• Contribute to the implementation of a microservices architecture.

• Maintain a hexagonal architecture within each microservice.

• Implement automatic recovery strategies in case of flux integration errors.

• Ensure system consistency by preventing data loss in asynchronous communication between different microservices.

• Add BDD functional tests with Cucumber.

• Contribute to code evolution by updating the Java version from 8 to 21, as well as other libraries used.

• Lead technical design workshops within the team.

• Participate in regular technical synchronization sessions involving referents from other teams based in Paris, Bangalore, and New York.

• Guarantee code quality and adherence to the implemented architecture through code reviews for every new development.

• Utilize monitoring tools to assist the support team, investigate production incidents, and analyze performance issues.

• Prepare and track deliverables.

Within the IT Client & Sales Facing department, I participated in the development and maintenance of the Smart Derivatives platform, allowing clients and market operators to structure, value, and book a wide range of products from flow derivatives to structured products.

The main tasks include:

• Contribute to the implementation of a microservices architecture with Event Sourcing, CQRS, and Saga patterns.

• Understand and implement the derivative product management steps, which include price requests, pricing, regulatory eligibility calculation, booking, document generation, confirmation, and execution.

• Participate in community technical synchronization sessions involving referents from each team.

• Contribute to the evolution of community libraries.

• Participate in design and architecture workshops.

• Disseminate clean code best practices.

• Utilize monitoring tools (Prometheus, Dynatrace) to track incidents and analyze performance issues.

• Prepare and track deliverables.

• Assist the support team.