Hedi Saaidi

COVAGE (jan. 2021 - jan. 2022 ): - Developed and delivered new features for the billing solution, enhancing its functionality and user experience. - Automated deployments on various environments using Jenkins pipelines, streamlining the release process and reducing downtime. - Improved the performance of the billing solution through optimizations and fine-tuning, resulting in faster response times and increased efficiency. - Automated database dumps for different databases, ensuring data integrity and simplifying backup procedures. - Implemented robust monitoring tools for environments and databases, specifically leveraging Cassandra, to proactively identify issues and ensure system stability. Technical Environment: Docker, Docker Compose, Python, Cassandra, MongoDB, SQL Server, RabbitMQ, GitLab, Jenkins UNYC (jan. 2019 - jan. 2021 ): Maintenance of a Telecom billing system, ensuring smooth operations and continuous improvement. - Conducted analysis and workload estimation for enhancement requests, contributing to effective project planning and execution. - Developed and integrated new functionalities into the billing system, enhancing its capabilities and user experience. - Successfully identified and resolved anomalies, ensuring a stable and reliable billing system for clients. - Provided dedicated support to the client's operations teams, collaborating closely to address challenges and optimize system performance. - Deployed a Kubernetes cluster using Ansible. - Deployed microservices with Kubernetes, enabling scalable and modular application architectures. Technical Environment: Docker, Docker Compose, Python, Cassandra, MongoDB, SQL Server, RabbitMQ, GitLab, Kubernetes, Ansible, Django, Flask

Integration of a billing solution for a telecom operator: - Decoded events sent by the IMS ClearWater core through the Diameter protocol. - Developed various mircoservices of the billing system. - Implemented a Docker Compose setup to configure all application services. - Automated testing through scripting and monitoring with Grafana. - Set up crons and a publisher for real-time billing. - Installed and configured the solution on production and preproduction servers. - Conducted post-migration tests for the entire billing chain. - Tracked and resolved anomalies. Technical Environment: Python, Cassandra, MongoDB, RabbitMQ, Docker, SQL Server, ClearWater, Diameter, Swagger, Prometheus, Grafana.