Hi, I'm Ahmed Habib Mezni
I run live infrastructure and the pipelines that ship to it. Ansible, GitHub Actions, Docker and Prometheus/Grafana today, Kubernetes, OpenShift and GitOps before that, from the first requirement to the deployment.
DevOps & Cloud Engineer at QuantumStack, where I run the infrastructure and the release pipeline I built. Engineering degree from ESPRIT, July 2026.
Today I operate a live multi-server blockchain infrastructure: 47 Ansible playbooks, Git tag-driven releases with blue/green cutover and automatic rollback, DevSecOps gates on 4 repositories, and Prometheus/Grafana alerting. Before that, I designed ShiftWise, a platform that migrates VM fleets to OpenShift Virtualization, and shipped Dewini as microservices on Kubernetes, with the delivery chain around both automated through Docker, Ansible, GitOps and CI/CD.
What I care about: clean deployments, monitoring somebody actually reads, and code a team can still run six months later. I speak Arabic, English and French, and I'm open to relocating.
IT Architecture & Cloud Computing
ESPRIT School of Engineering, Ariana
Lycée de la Manouba
Manouba, Tunisia
Everything below has shipped in a project or an internship, not just a tutorial.
KubeVirt
OpenStack
Ansible
Nginx
Argo CD
GitHub Actions
Linux
Git
Loki
Fluent Bit
SonarQube
Five projects in cloud infrastructure and full-stack development.
An operator console for VM migration campaigns. It moves fleets off legacy hypervisors, vSphere, KVM, Proxmox, Hyper-V, onto OpenShift Virtualization, with compatibility scoring, live migration tracking and end-to-end reporting.
KubeVirtPostgreSQLRedisCelery
A medical management platform: appointments, emergency triage, AI-driven urgency prioritization and a real-time chatbot. Spring Boot microservices on Kubernetes, deployed to OpenStack with full Grafana observability.
Centralized log collection and security alerting across Linux, Windows and Kubernetes workloads. Fluent Bit pipelines feed Loki, Grafana dashboards surface anomalies, alert rules catch intrusions and performance regressions.
LokiGrafanaDockerKubernetesLinux
A full-stack todo app. React on the front, Express on the back, Dockerized end to end with persistent storage. Categories, analytics, dark mode, and a deliberately quiet interface.
Sports facility booking across web (Symfony), desktop (JavaFX) and mobile (FlutterFlow). One backend, three faces, no double bookings.
Run the infrastructure and deployments of a live multi-server blockchain network. Built the release pipeline end to end: Git tag-driven releases, digest-pinned Docker images signed with cosign, blue/green cutover and automatic rollback inside a 90-second health window. Automated server provisioning with 47 Ansible playbooks and 10 roles, added DevSecOps gates (Gitleaks, CodeQL, Trivy) on 4 repositories backed by 234 infrastructure tests, and set up Prometheus/Grafana alerting and PostgreSQL backups.
Six months, from requirements analysis to production deployment on a bare-metal OpenShift 4.18 cluster. Designed and built ShiftWise: FastAPI and React 19, Celery pipeline orchestration, compatibility scoring, GitOps delivery through Argo CD. Kanban workflow tracked in Jira.
Built a QR-based member identification system with Spring Boot and Angular. UUID QR codes cut manual data entry by 75%, real-time member lookup hit 99% reliability on payment status, and instant badge regeneration saved 3 hours of manual work a week across 200+ users.
Built a centralized log monitoring stack with Fluent Bit, Loki and Grafana across 3 services, improving observability by 40%. Real-time dashboards cut incident response time by 60%. Containerized the whole monitoring infrastructure with Docker for 1,000+ concurrent users.
Handled 500+ admission files and cut processing time by 25%. Improved the document verification system, raising accuracy by 30% while onboarding 200+ students.
Open to a new full-time role and to freelance missions, on site in Tunisia or remote across Europe.
Container platforms, GitOps delivery and CI/CD pipelines. I set up Kubernetes and OpenShift clusters, automate the release chain with Argo CD, Ansible and GitHub Actions, and make deployments boring.
APIs and interfaces that hold up in production. FastAPI or Spring Boot at the back, React or Angular at the front, PostgreSQL underneath, with tests and a quality gate wired into the pipeline.
Logs, metrics and alerts somebody actually reads. Fluent Bit into Loki, Prometheus and Grafana dashboards, and alert rules that catch an incident before a user reports it.
Loki
Fluent Bit
Moving virtual machines off legacy hypervisors onto OpenShift Virtualization. Discovery, compatibility scoring, disk conversion and reporting: the pipeline I built and shipped for my end-of-studies project.
KubeVirt
OpenStack
libvirt / KVM
Celery pipeline
A question, an offer, a freelance mission. I reply within 24 hours.
Open to cloud, DevOps, SRE and IT architecture roles in Tunisia or Europe, and to freelance work.