I am a Systems Engineer graduated from the Universidad Nacional Abierta y a Distancia (UNAD), with a solid focus on Open Source operating system administration and IT infrastructure optimization. I have hands-on experience in corporate technical support and deploying secure network architectures under professional and academic standards.
Operating Systems & Infrastructure
Services & Security
2023 – 2025
- Infrastructure Maintenance: Managed hardware and software troubleshooting for enterprise workstations, ensuring 99.9% uptime for end-users.
- Technical Support: Resolved complex L1/L2 technical incidents via ticketing systems, focusing on network connectivity and OS stability.
- System Optimization: Implemented preventive maintenance protocols to extend equipment lifecycle and improve performance.
Final Graduation Project - UNAD | 🔗 Official University Repository
Design and implementation of a robust server infrastructure based on Ubuntu Server, focusing on security and high service availability.
- Network Infrastructure: Configuration of core services including DNS (Bind9), DHCP, and Web Hosting (Apache).
- Database & Storage: Deployment of MariaDB for data management and FTP services for secure file transfer.
- Security Hardening: Implementation of firewall rules and access controls to protect network integrity.
- Technical Documentation: Authored a comprehensive 60+ page technical manual detailing every configuration step and the network topology.
Key Skills: Linux CLI, Network Services, Security Hardening, Technical Writing.
- Project Documentation: 📄 View Local PDF Report
**LinkedIn: https://www.linkedin.com/in/david-steven-jaramillo-molano-815948248/ **Email:deivis-51@hotmail.com