Derar Chekrouni
Network & Systems | Linux • Networking • Infrastructure
About
Networks & Embedded Systems student focused on network infrastructure and Linux systems administration. Currently preparing for the RHCSA.
I build and test real systems — not just configure them. My work focuses on infrastructure that handles real conditions: failover, load balancing and automated provisioning.
Projects
Enterprise Network Infrastructure
| Tech | GNS3, Ansible, OSPF, VLANs, STP, DHCP, DNS, SMTP, SNMP, Syslog |
|---|---|
| Domain | Network Infrastructure · Automation |
Full enterprise-grade network built and provisioned from scratch. Multi-segment architecture covering a Data Center, DMZ, and departmental zones — with automated configuration deployment through Ansible.
- Dynamic routing with OSPF, VLAN segmentation, and Rapid STP for L2 resilience
- Core services deployed across zones: DHCP, DNS, SMTP, IMAP, SNMP, Syslog
- End-to-end connectivity and segmentation validated through systematic testing
Distributed Online Voting Platform
| Tech | HAProxy, PostgreSQL, Patroni, etcd, Node.js, Nginx, Tailscale VPN |
|---|---|
| Domain | Distributed Systems · Infrastructure |
Highly available distributed system built on 12 virtual machines with no single point of failure. Each tier runs behind its own HAProxy load balancer — failures at any tier don’t cascade.
- PostgreSQL + Patroni + etcd for automatic leader election and synchronous replication
- Stateless Node.js backend, horizontally scalable by design
- Resilience validated through live failure scenarios: nodes taken down mid-operation, auto-recovery at every tier
Education & Certifications
| Master’s — Networks & Embedded Systems | University of Algiers 1 · 2025 – Present |
|---|---|
| Bachelor’s — Computer Science | University of Algiers 1 · 2022 – 2025 |
| Cisco Certified Network Associate (CCNA) | 2026 |
| ISC2 Certified in Cybersecurity (ISC2 CC) | 2026 |
| Red Hat Certified System Administrator (RHCSA) | In progress |
