Saifeddine Rajhi

Enschede, Netherlands (0031) 0634595291 · rajhiseif@gmail.com

I am a dedicated Senior Site Reliability Engineer (SRE) and Platform Engineer with a passion for building and maintaining robust, scalable, and secure cloud-native systems. My background includes extensive experience in DevOps, Cloud Computing, and Kubernetes, with a focus on ensuring the reliability, availability, and performance of mission-critical applications. In my role, I lead the design, implementation, and maintenance of cloud-native infrastructure using Kubernetes, Docker, and Terraform. I spearhead the adoption of DevOps best practices, including CI/CD pipelines, infrastructure as code, and automated testing. I collaborate with cross-functional teams to optimize application performance, scalability, and security, and I conduct regular security audits and implement proactive measures to mitigate potential vulnerabilities. Additionally, I mentor junior team members and contribute to the development of internal training programs.

Education

Master of Engineering

Manouba University ENSI
Major : Computer & Network Security
2015-2018

BS (Pre Engineering Study) of Math and Physics

Tunis University (IPEIT)
Succeed in the national Competitive Entrance Examinations for Engineering Training Courses (Exam session 2015).
2013-2015

Skills

Programming Languages & Tools
DevOps Toolkit
  • Python, GoLang, Shell, Bash
  • DevOps & Cloud: Docker, Jenkins, Git, Ansible, Terraform, Grafana, ELK Stack, AWS, Kubernetes.
  • Operating systems: Linux Red Hat, Ubuntu, Mint, CentOS.
  • DevOps: Maven, Jenkins, Sonar, Nexus, GitLab, Docker, Ansible, Puppet, Terraform (Infrastructure as Code).
  • Virtualization: Amazon Web Services (AWS), VMware vSphere, Hyper-V, Docker, OpenShift
  • Continious integration: GIT, github & gitlab

Personal Projects

Year-end Project: Integration, configurations and setup of Orange communication application


Technical environment: Linux, Docker, Kubernetes, Grafana, GIT, Load Balancer HAProxy, Nginx, MySQL, Python, Ansible.
  • Update operational technical documentation (diagrams, operating modes, etc.).
  • Configure monitoring metrics.
  • Maintain & execute the Disaster Recovery Plan (DRP).
  • Manage systems and support for Orange subsidiaries.
  • Make the requests to open the necessary flows.
01/2017-06/2017

Build a platform to manage the training catalog and session plan and analyze indicators after training monitoring.


06/2016-8/2016

Professional experiences

Senior Site Reliability and Platform Engineer – Justeat Takeaway.com, Enschede, Netherlands


Technical environment : AWS, GIT, Python, terragrunt, Atlantis, Docker, Helm, Kubernetes, Terraform, DataDog.
  • Monitor the maintenance and optimization of the site's infrastructure to ensure high availability and performance.
  • Implement and provision infrastructure in EKS (Elastic Kubernetes Service) to support the deployment of applications.
  • Enforce standardized deployment practices, following a golden path approach for consistency and efficiency.
  • Conduct system upgrades and ensuring seamless integration of new features to enhance platform reliability.
  • Active participation in on-call rotations, responding promptly to incidents and ensuring system stability.
04/2023-Today

Senior DevOps engineer – Storm Reply, Paris, France


Technical environment : Linux, AWS, GIT, Python, Jenkins, Inspec, Docker, Oracle, Cassandra, Kubernetes, Terraform
  • Migrate our clients’ workloads to the AWS cloud as an AWS partner
  • Help our clients with the process of portfolio analysis to estimate migration costs, create a TCO analysis
  • Management of the CI/CD pipelines.
  • Ensure our clients' workloads are optimized for cost, security, performance, reliability, and sustainability.
  • Installation and configuration of the integration and production environment on AWS.
08/2022-03/2023

DevOps engineer - Michelin, Paris, France


Technical environment : Linux, Grafana, GIT, Python, Jenkins, AWS, Docker, Oracle, Maven, Sonarqube, Terraform
  • Processing of Prod / Pre-Prod incidents and monitoring of daily processing.
  • Monitoring, surveillance, and centralization of logs via ELK stack.
  • Installation of production environment on AWS cloud via terraform and cloudformation.
  • Configuration of the platforms and servers via ansible and Puppet
  • Installation and configuration of the acceptance environment.
01/2020-07/2022

Integration and system engineer - SOFRECOM, Tunis, Tunisia


Technical environment: Linux, Grafana, GIT, Cloud, Load Balancer HAProxy, Nginx,, MySQL, Python, Docker, Ansible, Jenkins.
  • Manage systems and support for Orange subsidiaries.
  • Training and support of technical support teams (put into production).
  • Update operational technical documentation (diagrams, operating modes, etc.).
  • Automation of the infrastructure.
  • Installation and configuration of the acceptance environment.
08/2028-12/2019

Interests

Apart from being a Platform Engineer, I enjoy my time being outdoors. I love hiking! I hike on vocation and Weekends. Hiking has given me a chance to feel strong in a world that can really beat you down if you’ll let it. For me, time spent on a trail is time to refocus and move forward stronger than when I started.
Another thing that I enjoy doing is Reading Books, reading is a refreshing activity that renews my energy and elevates my mood.
For me, reading gives me purpose, helps me persevere through difficulty and unlocks parts of me that I didn't even know existed.

You can follow my readings in my Goodreads account.

Certifications

  • AWS SysOps associate SOA.
    See Credential
  • AWS Solutions Architect Associate SAA-C02 certificate.
    See Credential
  • Kubernetes administrator certificate CKA
    See Credential
  • DevOps Foundation certificate: DevOps Institute.
  • Certification Red Hat System Administration I (RH254).