Oussema Benjabli

Migration of Java applications from AWS SDK v1 to v2 (API refactoring, Maven update, test automation). Design and improvement of GitLab CI/CD pipelines for SDK v2 migration, with automated execution of builds, tests, and deployments. Creation of an AWS Bedrock wrapper to expose generative capabilities (LLM) to internal applications. Implementation of centralized secret management: inventory of Jenkins / GitHub Actions credentials, migration to AWS Secrets Manager and integration via a shared Jenkins Groovy library.

Cleanup of GitHub secrets after pipelines to reduce the attack surface and centralize security. Support for teams and writing DevOps/Cloud documentation on AWS standards.

Technologies: AWS (EC2, S3, Lambda, CloudFront, Route 53, Bedrock, Secrets Manager), GitLab CI/CD, Jenkins, GitHub Actions, Java 17, AWS SDK v2, Groovy. for client projects.

Deployment of the solution on 6 client projects and daily support in the RUN phase.

Writing technical documentation for onboarding to the solution. Refactoring Docker images with a size reduction from 17 GB to 3 GB.

FinOps monitoring and AWS cost oversight and resource cleanup automation. Creation of a Serverless CI solution for client projects.

Development of an on-demand CI solution based on Gitlab and AWS. Configuration and management of AWS infrastructures (EC2, ECS, EFS, RDS, SSM) using CDK and CloudFormation.

Isolation of jobs in dedicated ECS tasks and Docker images adapted to each job. Reduction of CI execution time from 30 to 11 minutes (-63%). Configuration and maintenance of the Fargate driver on EC2 to control ECS tasks and automated creation of test RDS databases from snapshots.

Cost optimization (FinOps) through AWS resource monitoring and automated cleanup.