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Achievement: Pair Extraordinairex3Achievement: StarstruckAchievement: Pull Sharkx2Achievement: QuickdrawAchievement: YOLO

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psantana5/README.md

Pau Santana

Linux Specialist, CDN Team at GlobalConnect

LinkedIn Medium Email

Overview

Linux specialist working on CDN infrastructure at GlobalConnect. Focused on systems administration, network optimization, and infrastructure automation. Background in high-performance computing with expertise in Linux systems optimization and cluster management.

Technical Expertise

Linux Systems

  • Enterprise Linux administration (Rocky Linux, RHEL, Ubuntu)
  • System optimization and performance tuning
  • Kernel configuration and troubleshooting
  • CDN infrastructure management

Network & Infrastructure

  • Content delivery network operations
  • Network optimization and troubleshooting
  • Infrastructure as Code (Ansible, Terraform)
  • Configuration management and orchestration

Cloud & Virtualization

  • Cloud platforms (AWS, OpenNebula)
  • Container technologies (Docker, Singularity)
  • Virtualization and resource management

High-Performance Computing

  • HPC cluster design and deployment
  • SLURM workload manager configuration
  • Scientific application optimization
  • Parallel computing environments

Monitoring & Observability

  • Prometheus and Grafana implementations
  • System telemetry and metrics collection
  • Performance analysis and optimization

Development

  • Bash scripting and automation
  • Python for system administration
  • C for system-level programming
  • Spack package management

Current Work

  • Linux systems administration for CDN infrastructure at GlobalConnect
  • Network optimization and performance tuning
  • Infrastructure automation and configuration management
  • Monitoring and observability solutions
  • Supporting content delivery operations

Technical Writing

- [Guide: Running RTMP + HLS with Docker and FFmpeg](https://medium.com/@psantana5_/guide-running-rtmp-hls-with-docker-and-ffmpeg-769c3f14462e?source=rss-d53a7a8dd318------2)- [Automating HPC Cluster Deployments with Ansible: A Modular, Scalable Approach](https://medium.com/@psantana5_/automating-hpc-cluster-deployments-with-ansible-a-modular-scalable-approach-0712bb97a19a?source=rss-d53a7a8dd318------2)- [Two Handy Bash Scripts for Linux Admins & DevOps Engineers — Plus a Bonus at the End!](https://medium.com/@psantana5_/two-handy-bash-scripts-for-linux-admins-devops-engineers-plus-a-bonus-at-the-end-8b0ca301c485?source=rss-d53a7a8dd318------2)- [Understanding Docker: A Beginner’s Guide](https://medium.com/@psantana5_/understanding-docker-a-beginners-guide-527ca9e82afa?source=rss-d53a7a8dd318------2)- [The Linux distros madness…what distro should I pick?](https://medium.com/@psantana5_/the-linux-distros-madness-what-distro-should-i-pick-3b37330e4bef?source=rss-d53a7a8dd318------2)

Selected Projects

  • ansible-hpc - Ansible playbooks for HPC cluster deployment and management on Rocky Linux 8-9
  • linux-reality-check - Linux system administration and troubleshooting resource
  • ffmpeg-rtmp - Energy-aware streaming observability with RAPL power telemetry and automated benchmarking

Contact

Pinned Loading

  1. ansible-hpc ansible-hpc Public

    Set of Ansible playbooks for deploying and managing a High-Performance Computing (HPC) cluster for Rocky 8-9 hosts.

    Jinja 3 2

  2. ffmpeg-rtmp ffmpeg-rtmp Public

    Energy-aware streaming observability for performance optimization. Real-time RAPL power telemetry, automated FFmpeg benchmarking, and baseline-vs-test dashboards for power-to-performance insights.

    Go 1

  3. linux-reality-check linux-reality-check Public

    Empirical analysis of Linux performance reality: cache, memory, latency and scheduling effects using ECDFs, percentiles and tail behavior. Focused on truthful, non-parametric system measurements.

    Python