Houssem Hjaiej

Devops and System administrator @ Hippo Shopping

About

A DevOps and Site Reliability Engineer graduated from Horizon School of Digital Technologies, I currently work as a DevOps and System Administrator at Hippo Shopping. My role involves designing and maintaining CI/CD pipelines with Jenkins, automating deployments using Ansible, and implementing DevSecOps practices to enhance security and efficiency. I also leverage monitoring tools like Prometheus and Grafana to ensure system reliability, alongside expertise in Golang, Python, and Bash scripting. At Hippo Shopping, I contributed to streamlining development workflows by integrating automated testing frameworks and developing modular solutions for deployment and system configuration. By collaborating with cross-functional teams, I aim to align with organizational goals, enhance operational efficiency, and ensure robust, scalable infrastructures. My focus remains on fostering innovation, maintaining secure processes, and delivering high-quality solutions to drive success in dynamic environments.

Country

Tunisia

City

Hammamet

Industry

Computer Software

Skill

Golang, Python, Bash scripting, Grafana Loki, Amazon Web Services, Istio, Prometheus, Grafana, Nginx, Jenkins, Thymeleaf, JavaScript, Bootstrap, GitLab, Gitlab-CI, Ansible, Terraform, Kubernetes, Docker, Microservices

Experience

Devops and System administrator

Hippo Shopping

2024-11 - Present · 1 yr 11 mos

Manouba, Tunisia

• Designed and maintained CI/CD pipelines in Jenkins to streamline delivery for web apps, mobile apps, and browser extensions across dev, staging, and production environments. • Integrated automated tests into pipelines: Jest, Playwright (Next.js), and Detox (React Native – iOS/Android). • Enforced DevSecOps by integrating OWASP Dependency-Check, Trivy, OWASP ZAP, and SonarQube. • Developed and maintained modular Ansible roles and playbooks for microservices deployment and system configuration (e.g., port scanners, Fail2Ban). • Monitored systems and services (Jenkins, Nexus, SonarQube, Portainer) using Prometheus, Grafana, and cAdvisor. • Architected and executed automated backup solutions for critical infrastructure components and databases, ensuring resilience and disaster recovery readiness. • Created internal web interfaces and REST APIs using FastAPI and React.js to visualize unit test results and code coverage.

DevOps Engineer

Astrolab Group

2024-6 - 2024-8 · 3 mos

Gouvernorat Sousse, Tunisie

Automating the creation of Node.js application pipelines and server preparation to reduce development time, minimize integration issues and human errors. Key Responsibilities: • Developed a CI/CD pipeline template for the build and deploy stages using GitLab CI, Ansible Semaphore, and Azure • Developed an Ansible role for preparing servers, including installing and deploying Nginx, Portainer, Webmin, and Docker, with customizable configurations using Jinja2 templates • Developed an Ansible role for deploying Docker containers as systemd services on Debian-based servers using Docker and Jinja2 templates • Automated the creation of CI/CD pipelines for Node.js applications across production, test, and development environments by changing only variables, using GitLab CI, Ansible, Ansible Semaphore, Docker, and Azure

Back End Developer

Proxym Group

2023-2 - 2023-6 · 5 mos

Sousse, Gouvernorat Sousse, Tunisie

Key Responsibilities: • Prepared the project specifications, design, and architecture • Developed a micro CLI tool to retrieve automated test results from GitLab CI using Spring Boot and Picocli • Developed a REST API to retrieve results from the micro CLI, process them, and store them in a PostgreSQL database using Spring Boot • Developed controllers for authentication to an LDAP server and serving user requests, following the MVC pattern using Spring Boot and OpenLDAP • Developed a dashboard to visualize automated test results using Thymeleaf, Bootstrap, and JavaScript