Robert Melcher

aka merox (MElcher + RObert + X)

HPC System Administrator and former Cybersecurity Engineer with 9+ years of experience in Linux infrastructure, high-performance computing, and security. Specialized in datacenter operations, automation, and homelab innovation.

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HPC System Administrator

Forvia • 2022 – Present

Managing high-performance computing infrastructure with PBS job scheduling and InfiniBand networking
Administering hybrid Windows/Linux server environments with ActiveDirectory integration
Orchestrating virtualization and network infrastructure using ManageIQ and VitalQIP

Previous Experience

Founder

2022 – 2024

Dolphost

Built and operated web hosting business providing VPS, shared hosting, and WordPress solutions with WHMCS/cPanel infrastructure

Cyber Security Engineer

2020 – 2022

Atos IT Solutions

Conducted vulnerability assessments and managed enterprise security infrastructure (Palo Alto, Fortinet, McAfee, CyberArk, Forescout)

System Administrator

2018 – 2020

Netex Romania

Managed datacenter operations, migrated Puppet to Kubernetes, implemented IPsec networking, and maintained VOIP systems

Qualifications

Education

Computer Science

West University of Timișoara

2016–2018

Certification

CCNA (Cisco Certified Network Associate)

Cisco • 2019–2020

#NJXWKRFD7D1EQ7C0

Homelab

Dell PowerEdge R720 with Proxmox virtualization
Production K8S cluster running Talos Linux + FluxCD GitOps
Network segmentation with VLANs, WAF, and pfSense firewall

Read about my infrastructure setup