×
Gălbază Alexandru-Mihai

Gălbază Alexandru-Mihai

Systems & Infrastructure Engineer

Cluj-Napoca, Cluj County, RO
Romanian, English

Background


About

About

Systems and Infrastructure Engineer specializing in containerized architectures, secure distributed networks, and data pipeline orchestration. Experienced in bridging the gap between physical hardware and automated deployments, utilizing AI-assisted development to architect scalable solutions. Seeking to leverage systems administration and hardware-level diagnostics skills in defense, manufacturing, or secure infrastructure sectors.

Work Experience

Work Experience

  • Infrastructure & IT Support SpecialistTechnical University of Cluj-Napoca

    Jan, 2024 - Present

    Administer and maintain critical IT infrastructure across the university operational stack.

    • Administer Active Directory environments and monitor continuous infrastructure health and network telemetry using Zabbix.

    • Automate and manage large-scale OS deployments and system imaging across the network utilizing FogProject.

    • Debug legacy applications (accounting software, signing certificates) and resolve critical system blockers ranging from software patching to hardware-level hardware diagnostics.

    • Ensure long-term operational stability by managing SLAs via OSTicket and maintaining comprehensive technical documentation in BookStack.

Projects Experience

Projects Experience

  • AI-Augmented Research Discovery Platform (AIRI)

    Feb, 2025 - Present

    Architected and deployed a full-stack web platform and automated data pipeline for an AI research institute, acting as the lead infrastructure engineer.

    • Evolved the platform architecture from static rendering to a fully containerized Next.js, Strapi, and PostgreSQL stack, routed securely through an NGINX reverse proxy.

    • Engineered a zero-downtime, pull-based CI/CD pipeline utilizing Docker Watchtower to bypass strict 'no-sudo' server constraints, enabling automated deployments from GitHub Actions.

    • Managed a decentralized 'fork-and-pull' contribution model to safely review, test, and integrate code from a continuously rotating base of student developers.

    • Designed a self-sustaining Python data pipeline to harvest, reconstruct, and vectorize open-access publication abstracts using local Sentence Transformers and HDBSCAN clustering.

  • ESP32 802.11 Deauthentication Detector & Tracker

    Jun, 2026 - Present

    Developing a hardware-based cyber defense tool to detect malicious wireless network disruptions.

    • Programming an ESP32 microcontroller to detect 802.11 deauthentication attacks and alert on network anomalies.

    • Integrating a directional antenna for RF direction finding to geolocate the physical source of attacks; or deploying advanced tactics such as using a normal, low-gain antenna, and one's own body as a radio-absorbing medium to achieve the same geolocation results. Precision of both methods will be compared.

    • Applying hands-on research of SDR, Low-Noise Amplifiers (LNAs), and Bluetooth Frequency-Hopping Spread Spectrum (FHSS) to isolate signals in the 2.4GHz spectrum.

  • Secure Distributed Infrastructure (Homelab)

    Jan, 2023 - Present

    Architected a zero-trust, decentralized personal infrastructure network.

    • Built a secure mesh network across multiple Linux endpoints using Tailscale, enabling resource sharing without exposing public ports.

    • Implemented decentralized, version-controlled backups via Syncthing to distribute critical data across the mesh.

    • Hardened physical data security by enforcing LUKS full-disk encryption across all Linux nodes.

    • Previously engineered a dynamic remote-access VPN tunnel utilizing DDNS for automated IP resolution on legacy hardware.

Skills

Skills

  • Infrastructure & Networking

    Linux

    Windows Server

    Cisco Networking

    Active Directory

    Zabbix

    SCCM

    FogProject

    Tailscale Mesh

  • Systems Architecture & DevOps

    Docker Multi-Environment Containerization

    CI/CD Pipelines (GitHub Actions)

    Watchtower Automated Deployment

    PostgreSQL Management & Automated Backups

    Strapi Headless CMS

    AI-Assisted Development

  • Hardware & Defense Tech

    ESP32 Microcontrollers

    RF Antenna Gain & Polarization

    SDR (Software Defined Radio)

    Bluetooth Protocol & FHSS

    LUKS Full-Disk Encryption

    WPA2 Deauthentication Attack Detection

Education

Education

  • Computer Science, Bachelor's Degree, Technical University of Cluj-Napoca

    Oct, 2022 - Jul, 2026

    Thesis: AI-Augmented Research Discovery Platform (AIRI)

Certificates

Certificates

  • Competențe digitale - nivel avansat (eUT4ALL), eUT4ALL

    Issued on: Feb 27, 2025

Interests

Interests

  • Knowledge Management

    Maintains a comprehensive, version-controlled Obsidian Vault documenting network architectures, RF engineering, and Linux administration, as well as personal research notes on a variety of topics such as audio and aeronautics.
  • Aerospace & Avionics

    High-performance military aviation and tactical aircraft architecture.Aerodynamics, propulsion, and flight mechanics.Guided telemetry, targeting systems, and payload integration.
  • Motorcycles & Automotive Engineering

    Owns a motorcycle and loves doing maintenance on it, as well as taking it on adventures off-road.