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nicolasnkGH/README.md

Nicolas Teixeira πŸš€

Systems & Platform Engineer | Cloud-Native Infrastructure | AI/ML Operations

Location Email Portfolio LinkedIn Masters

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🎯 Architecting Mission-Critical Infrastructure | $30M+ United Airlines Program Lead

Systems Engineer directing enterprise-scale cloud infrastructure, Kubernetes orchestration, and distributed AI/ML platforms for global aviation & fintech sectors. Proven expertise in hybrid cloud migrations, containerized platforms, and identity-at-scale systems.

Recent Wins:

  • ✈️ $30M United Airlines Program β€” Architected Kubernetes-based infrastructure supporting real-time aircraft operations
  • πŸš€ Delta Airlines Migration β€” Led AWS on-premises-to-cloud migration with production-grade networking
  • πŸ€– Multi-Cluster AI Inference β€” Building distributed LLM serving across Mac mini + ROCm AMD VM cluster with llama.cpp, vLLM, SGLang, LMStudio
  • πŸ” Enterprise SSO β€” Designed Keycloak identity platform integrating customer Active Directory for 1000+ users

πŸ› οΈ Technical Expertise

πŸ€– AI/ML Infrastructure & Multi-Cluster Orchestration

  • Distributed AI Inference: Multi-cluster LLM serving with llama.cpp, vLLM, SGLang, LMStudio, LiteLLM frameworks
  • Multi-Device GPU Acceleration: Mac mini (LMStudio) + AMD ROCm VM cluster for diverse inference workloads, quantization strategies, and model optimization
  • AI Stack Architecture: Docker containerization, Proxmox virtualization, NFS/ZFS hybrid storage, VRAM management, and ComfyUI image generation pipelines
  • Production Observability: Real-time metrics (Prometheus, Grafana, Loki) for hardware health, latency analysis, model throughput, and inference SLAs

☁️ Cloud & Enterprise Architecture

  • Multi-Cloud Platforms: AWS (EKS, VPC, IAM, security groups) Β· Azure (VM, VNet, NSG, RBAC) Β· Hybrid cloud topology design
  • Infrastructure as Code (IaC): Modular Terraform modules Β· Ansible automation Β· GitHub Actions CI/CD pipelines Β· Proxmox HCL automation
  • Containerization & Orchestration: Docker Β· Kubernetes (EKS/AKS) Β· Podman Β· Microservices architecture Β· WSL deployment strategies

πŸ›‘οΈ Identity, Security & Zero Trust

  • Enterprise Identity Management: Keycloak integration Β· SAML/LDAP/Active Directory federation Β· Single sign-on (SSO) at enterprise scale
  • Secure Remote Access: Cloudflare Tunnels with TLS termination Β· Tailscale reverse proxies Β· Zero Trust network architecture
  • Network Segmentation: VPC topology design Β· security group policies Β· VLAN isolation Β· enterprise firewall configuration

πŸ“Š Observability & SRE

  • Monitoring & Alerting: Prometheus metrics collection Β· Grafana dashboards Β· Loki log aggregation Β· custom alerting rules
  • Production Incident Response: Cross-functional troubleshooting Β· preventive measure implementation Β· reducing MTTR
  • SLA & Compliance: High-availability architectures Β· financial services regulatory requirements Β· real-time operational dashboards

πŸ“‚ Featured Projects

πŸ”­ AI Stack | Self-Hosted GPU-Accelerated AI Platform

Production-grade containerized platform for operating and evaluating GPU-accelerated AI workloads at scale.

  • Tech Stack: Docker Compose Β· Kubernetes Β· Proxmox VE Β· NVIDIA CUDA Β· NFS/ZFS hybrid storage Β· OpenWebUI Β· ComfyUI
  • Highlights: Ollama LLM engine, RAG via SearXNG, image generation workflows, OpenAI-compatible APIs, Cloudflare Tunnel secure access, quantization optimization

πŸ”­ StarGazer | Personal Observatory Dashboard

Serverless stargazing platform with real-time weather AI evaluation and astrophotography FOV planning.

  • Tech Stack: Python (FastAPI) Β· Three.js (3D celestial models) Β· D3-Celestial Β· Google Gemini 2.5 Flash Β· Cloudflare Pages Β· Google Cloud Run
  • Highlights: Dynamic light pollution filtering (Bortle Class), AI weather evaluation, PWA push notifications, native mobile support

πŸ—οΈ Proxmox Automation | Enterprise HA Cluster IaC

HCL-based infrastructure-as-code templates for deploying production Proxmox virtualized infrastructure at scale.

  • Tech Stack: HCL (Terraform) Β· Ansible Β· PowerShell Β· Docker Compose Β· ZFS Β· High Availability clustering
  • Highlights: Automated multi-node cluster provisioning, storage configuration, HA failover, zero-downtime deployments

🌐 Home Networking Setup | Enterprise-Grade Home Lab

Production-grade hybrid networking architecture simulating Fortune 500 enterprise infrastructure at home lab scale.

  • Tech Stack: Proxmox VE Β· UniFi Β· Technitium DNS Β· Cloudflare Tunnel Β· Apache Guacamole Β· Nginx Proxy Manager
  • Highlights: Split-horizon DNS, centralized SSL management, private access tunnels, network segmentation, disaster recovery scenarios

πŸ“Š Monitoring Stack | Full Observability Platform

Prometheus, Grafana, and Alertmanager deployment for centralized monitoring and visualization of infrastructure and applications.

  • Tech Stack: Prometheus Β· Grafana Β· Alertmanager Β· Node Exporter Β· Shell scripting
  • Highlights: Multi-source metrics collection, custom dashboards, alerting rules, visualization pipelines

πŸ’» Tech Stack & Tools

Category Technologies
Cloud Platforms AWS Azure Google Cloud
AI/ML Inference llama.cpp vLLM SGLang LMStudio LiteLLM
Container & Orchestration Docker Kubernetes Podman
Infrastructure as Code Terraform Ansible Helm
CI/CD & Automation GitHub Actions Azure DevOps
Languages Python PowerShell Bash SQL
Observability & Monitoring Prometheus Grafana Loki
Security & Identity Keycloak Cloudflare Tailscale
Virtualization Proxmox NVIDIA CUDA AMD ROCm

πŸ“Š GitHub Performance

Nicolas's GitHub Stats Nicolas's Top Languages

GitHub Streak

Nicolas's Contribution Activity Graph


πŸŽ“ Education

  • M.S. in Software Engineering & DevOps Engineering

    • Western Governors University | Graduated June 2026
    • Focus: Scaling distributed systems, cloud security, Infrastructure as Code, virtualization platforms, enterprise architecture
    • Thesis Work: Enterprise-scale Kubernetes optimization, cloud migration strategy frameworks
  • B.S. in Computer Science

    • University of the People | Completed August 2024
    • Focus: Systems design, data structures, algorithms, software engineering principles

🌍 Languages

  • English β€” Native / Bilingual Proficiency
  • Portuguese β€” Native / Bilingual Proficiency
  • Spanish β€” Professional Working Proficiency

πŸš€ Current Focus

  • 🎯 Building multi-cluster AI inference systems across heterogeneous hardware (Mac mini, ROCm AMD GPU)
  • πŸ€– Optimizing quantization strategies for diverse LLM deployment frameworks
  • ☁️ Scaling Kubernetes platforms for enterprise clients
  • πŸ” Zero Trust security architecture implementation
  • πŸ“Š Building observability-first infrastructure

πŸ“¬ Let's Connect

LinkedIn Email Portfolio

Open to opportunities in: Cloud Infrastructure | Platform Engineering | Kubernetes | DevOps | AI/ML Operations | Enterprise Architecture


Visitor Count

Last updated: August 2026 β€” Always learning, always building πŸ”§

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  1. Portfolio Portfolio Public

    My Web Portfolio

    JavaScript

  2. stargazer stargazer Public

    ✨ Personal stargazing dashboard. Track active constellations, planets, and ISS passes without the noise.

    TypeScript 2 6

  3. ai-stack ai-stack Public

    Self-hosted AI/ML infrastructure stack with GPU acceleration, Docker containerization, ZFS storage, and comprehensive observability - production-ready local LLM deployment

  4. dev-journey-archive dev-journey-archive Public

    My developer learning journey and exploratory projects (2018-2025) - foundational experiments before transitioning to DevOps and infrastructure automation

    Python

  5. monitoring-stack monitoring-stack Public

    Full observability stack deployment with Prometheus, Grafana, Alertmanager - centralized monitoring and visualization for infrastructure and applications

    Go Template

  6. terraform-aws-cloudcampusiq terraform-aws-cloudcampusiq Public

    HCL