Cloud & DevOps Engineer
Rayen Dhmaied
I build and run cloud infrastructure, and write the backend that runs on it.
Selected work
DeployCenter
Multi-Tenant Kubernetes Deployment Platform
Deployment platform I built for 20+ customer apps across 3 AWS regions. It cut per-app deploy time from 15 minutes to 3. I make batch changes from Git, developers deploy from a web dashboard, and both paths run the same Python orchestrator.
View projectKubernetes Observability Stack
Monitoring and alerting stack I built for production Kubernetes on AWS EKS. It cut mean time to resolve incidents (MTTR) by 50%, log storage cost by 70%, and alert volume by 60%, with Prometheus, Loki, Grafana OnCall, and external HTTPS probes.
View projectScalable BigBlueButton on AWS
A video conferencing platform I designed and built on AWS at CraftSchoolship, running the open-source BigBlueButton software as an auto-scaling fleet. A custom machine image cut server launch time from 11 minutes to 3, and scale-in protection keeps live meetings running while the fleet shrinks.
View projectQuizShip
Live Interactive Quiz Platform
Live multiplayer quiz SaaS built as a Go game server and a Python API with a React frontend, Stripe subscriptions, and GitOps deploys on Kubernetes. Load-tested to 30,000 concurrent players on two game pods with zero errors.
View projectHR System Hub
Serverless HR Platform for Manufacturing
HR platform that replaced a manufacturing client's paper employee evaluations. Lead contributor on a three-engineer contract team. Serverless on Firebase in EU regions, about 120 API endpoints, and 1,400+ tests.
View projectBy the numbers
- AWS Cost Reduction
- 45%
- MTTR Reduction
- 50%
- Customer Apps in Production
- 20+
Areas of expertise
Cloud Architecture
Design and maintain cloud infrastructure that reliably supports applications at scale. Ensure high availability, fast recovery from failures, and clear visibility into system performance, while optimizing resource usage and costs.
DevOps & Automation
Automate deployments, infrastructure provisioning, and operational tasks to reduce manual work and errors. Enable teams to release features faster and with confidence by providing consistent, repeatable workflows.
Backend & Platform Engineering
Develop backend services and internal platforms that are reliable, maintainable, and efficient. Focus on building systems that help teams deliver products safely, handle growing traffic, and are easy to operate in production.