Wael Ben Salah

Infrastructure as Code (IaC):

• Server configuration management with Ansible and Puppet (installations, updates, services, ...).

• AMI image creation with Packer.

• AWS infrastructure design and deployment via Terraform and CloudFormation (IAM, EC2, RDS, ElasticSearch, Elasticache, CodeDeploy, S3, CloudFront, WAF, Route53, Certified Manager, API Gateway, Lambda, SQS, SNS, KMS, CloudWatch, ...).

• Terraformization of manually created AWS infrastructure.

FinOps:

• Monitoring and cost optimization of AWS services (Cost Explorer, Trusted Advisor).

• Implementation of Shell scripts to create and destroy AWS infrastructure via Jenkins.

• Implementation of Lambda automating the startup and shutdown of EC2 and RDS instances.

• Implementation of cron events at the autoscaling groups level to automatically create and terminate EC2 instances.

• Migration of databases to Serverless (from RDS MySQL to Aurora Serverless).

• Migration of Docker containers to Serverless with AWS ECS (AWS ECR and AWS Fargate).

SysOps:

• Server administration (Maintenance, Updates, ...).

• Migration of servers to AWS cloud (GitLab, Jenkins, ELK, SATIS, Nginx, NodeJS, MongoDB, RabbitMQ, Redis, ...).

• Management of Web server configurations: Nginx and Apache.

• Server monitoring and log centralization by implementing the ELK stack (Elasticsearch, Logstash, Kibana).

• Database management (creation, dump, import, backup, migration, ...), DNS [Route53, Gandi, 1&1, OVH] (creation, migration, redirection, ...), HTTPS certificates, and VPNs (site-to-site, client).

CI/CD:

• Implementation of CI/CD workflows to automate application integration and deployment.

• Implementation of testing tools (OWASP, Behat, Blackfire, Sitespeed, …).

Automation of infrastructure and configuration management:

• Automated creation of AWS resources (VPC, Networks, Instances, ...) with Terraform.

• Implementation of a software factory (Git, Jenkins, SonarQube, Docker, ...) with Ansible.

• Implementation of a monitoring server for the software factory with the ELK stack (Elasticsearch, Logstash, Kibana) combined with FileBeat.

Design and development of an application using a serverless microservices architecture in AWS Cloud:

• Hosting of the FRONT part in AWS Cloud using the S3 service.

• Hosting of the API part in AWS Cloud using Lambda and API Gateway services.

• Hosting of the database using the AWS DynamoDB service.

• Securing the application using the AWS Cognito authentication service.

• Creation of a domain name for the application using the AWS Route53 service.

• Implementation of a cache service for the application using the AWS CloudFront service.

• HTTPS security for the application using the AWS Certified Manager service.

Automation of application integration, deployment, and testing:

• Implementation of CI/CD workflows for the Front part of the application with Git, Jenkins, and S3.

• Implementation of CI/CD workflows for the API part of the application with Git, Jenkins, and Lambda.

• Automation of development tests using Selenium for functional tests and JMeter for performance tests.

Implementation of the collaborative platform "eXo Platform":

• Integration of an enterprise portal solution and a single entry point to all SiFAST company resources (LDAP, Zimbra, Redmine, Alfresco, Odoo, ...) based on the eXo platform deployed on an Apache Tomcat server.

• Integration of a single sign-on (SSO) solution, Central Authentication Service (CAS), to centralize authentication systems and make them more secure.