Daniel Serrano Marín

Junior Systems and Network Administrator specializing in Linux environments, cloud (AWS), and enterprise networks. I have real-world experience in migrating infrastructures from on-premises to AWS, deploying and managing Linux servers on EC2, and designing cloud architectures with VPC, public/private subnets, and security policies.

I have worked on implementing core routers with MikroTik (RouterOS), configuring secure VPNs (SSTP), managing Fortinet firewalls, and network segmentation using VLANs. Additionally, I have experience in virtualization with Proxmox and VMware, as well as task automation using Bash and AWS serverless services (Lambda + EventBridge) for instance lifecycle management.

My approach is practical and results-oriented: service deployment, infrastructure optimization, basic security reinforcement (Security Groups, NACLs, hardening), and resolution of technical incidents in real production environments.

I can help you with:

I work remotely from Spain and adapt well to both one-off projects and ongoing collaborations. I aim to bring technical value, order, and reliability to every infrastructure.