Freelancer profile translated to English.
Back to original languageAbout Seifeddine
Cloud and DevOps Engineer with over 15 years of experience in managing IT infrastructures, both in private and public clouds. Expert in infrastructure process automation, systems management, and application deployment using tools like Terraform, GitLab CI, and AWS. Specialized in setting up high-availability environments, automated infrastructure deployment, and cloud service security management. Passionate about process optimization and continuous improvement of production systems.
French
Native or bilingual
English
Fluent
Can work on-site
Paris (up to 50km), Lille (up to 50km), Lyon (up to 50km), Nice (up to 50km)
Experience
- @StellantisCloud & DevOps EngineerAUTOMOBILENovember 2024 - April 2025 (5 months)Paris, France• Migration of on-premise applications to AWS and setting up an AWS cloud infrastructure from scratch.• Refactoring Terraform modules to make them modular and reusable.• Provisioning IBM DB2 instances via Terraform and managing licenses with AWS License Manager.• Setting up automated CI/CD pipelines with GitHub and TeamCity for deploying cloud infrastructure.• Managing security and optimizing infrastructure costs.• Writing and updating technical documentation.Stack: AWS (ECS, Fargate, S3, CloudFront, ALB, RDS, Cognito, API Gateway, ….), Terraform, GitHub, TeamCity, Shell Script, IBM DB2
- @PMUCloud & DevOps EngineerSPORTSFebruary 2021 - August 2024 (3 years and 6 months)Paris, France• Creation and management of infrastructures on AWS via Terraform for deploying applications and services in various environments.• Handling infrastructure evolution requests on AWS and on-premise.• Continuous improvement of Puppet and Terraform modules for application deployment and configuration.• Migration of infrastructures from on-premise to AWS.• Deployment and management of Apache Flink, enabling real-time data stream processing, with optimized configuration for high performance and resilience.• Deployment of serverless solutions and management of Kafka clusters to ensure real-time communication and data integrity in large-scale distributed environments.• Setting up automated CI/CD pipelines with GitLab-CI, Jenkins, and Puppet to automate the deployment of AWS and on-premise infrastructures.• Implementation of security best practices in all environments (cloud and on-premise), notably through data encryption, secrets management with AWS Secrets Manager, and access security using tools like IAM and WAF.• Implementation of continuous monitoring with Dynatrace, Centreon, Kibana, and CloudWatch.• Technical support for Dev and Test teams on on-premise and AWS deployments.• L2/L3 support during business hours and off-hours (on-call, production deployments) and Incident response.• Training development teams on Infrastructure as Code (IaC) and DevOps culture.• Participating in the company's FinOps efforts by optimizing the usage of deployed resources: resource resizing, automatic environment Stop & Start ..• Writing and updating technical documentation.Stack: AWS (EC2, S3, ALB, RDS, Cognito, API Gateway,ACM, Route53, ELB, Cognito, Secrets Manager, OpenSearch,...), Terraform, GitLab CI, Puppet, Jenkins, Python, Shell Script, Kafka, Apache Flink, RedHat, IBM AIX, Rundeck, Dynatrace, Packer
- ministère de la JusticeSystem DevOps EngineerPUBLIC SECTORSeptember 2019 - February 2021 (1 year and 5 months)Paris, France• Setting up a CI/CD process for the PILOT application.• Continuous improvement of the application architecture based on production feedback.• Development of deployment and continuous integration scripts using Ansible/AWX and Git.• Troubleshooting and resolving deployment-related issues.• Detailed technical documentation of integration and installation procedures (DAT, Integration Guide, Installation Procedure).Stack: GIT, MAVEN, Jenkins, Groovy, Ansible/AWX, Docker, kubernetes, Apache Kafka, Nexus, Selenium /cucumber, Jmeter, Postgresql, JBOSS, Nginx, Redhat, Centos, JAVA,Spring batch, Spring Boot, Spring Data, Angular
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Education
- Professional Master in Security of Communicating and Embedded SystemsHIGHER INSTITUTE OF COMPUTER SCIENCE TUNIS2016Master Professionnel en Sécurité des systèmes communicants et embarqués
- Scientific Baccalaureate - MathematicsFACULTY OF ECONOMIC AND MANAGEMENT SCIENCES TUNIS2008Baccalauréat Scientifique - Mathématiques
Certifications
- AWS Certified Security – SpecialtyAmazon Web Services (AWS)
- AWS Certified Solutions Architect – AssociateAmazon Web Services (AWS)