IT coordinator & sysadmin | Web developer | Search engine QA specialist
Hi! I'm Adrian, an IT coordinator & sysadmin based in Madrid, Spain. Currently managing IT infrastructure for a municipality near Madrid — endpoint management, security, backups, compliance, and everything in between.
Background in web development and systems programming, with 14+ years of remote work, including 12+ in search engine quality assurance. I enjoy building reliable systems, documenting what matters, and making technology work for people who aren't technical.
- IT infrastructure: Windows 11, Linux (Debian/Mint/Arch), endpoint management, hardware repair
- Security: Kaspersky KSOS, Zscaler DNS filtering, UFW, DeepFreeze/overlayfs
- Backup & recovery: Duplicati, Filen.io, HTTrack, GitHub
- CMS & web: WordPress, Joomla, Django, Astro, Bootstrap, Tailwind CSS
- Version control: Git, GitHub
- Databases: MySQL, SQLite
- Compliance: ENS (Esquema Nacional de Seguridad), GDPR/RGPD
- Concepts: Data structures, algorithms, memory management, networking
IT coordinator & systems administrator | Nov 2025 – Present
Sole on-site IT resource for a small municipality near Madrid, managing the full technology stack across all municipal departments.
- Endpoint management: ~17 endpoints — Windows workstations and a Linux Mint deployment for public-access use (library), avoiding additional licensing costs
- Public-access machines hardened with DeepFreeze/overlayfs (3 Windows + 1 Linux Mint)
- Security: Kaspersky KSOS, Zscaler DNS filtering, antivirus policy and incident response
- Backup systems: Duplicati + Filen.io, HTTrack, GitHub, local redundancy
- Leading a Joomla → WordPress hosting migration and provider transition
- Deployed Sesame HR system organisation-wide (geolocation, leave management, multi-entity)
- Rolled out OCR solution with custom batch scripts, deployed across all departments
- Working towards ENS basic category compliance; RGPD-compliant procedures and staff guidance
- Vendor and supplier management; user support across all departments and public-facing citizen assistance
- Supervising 2 IT placement students
Ground handling agent | Mar 2025 – Jul 2025
- Passenger check-in and boarding gate management at Madrid-Barajas airport
- Worked with complex airline registry systems tracking passengers, boarding, and acceptance status in real time
- Fast-paced, customer-facing role with strict time and compliance requirements
Search engine QA specialist | Nov 2011 – May 2024 · 12 yrs 7 mos · Freelance · Remote
- Quality assurance for search engine ranking and content quality across multiple concurrent projects
- Assessed relevance across diverse content types: web pages, images, videos, and product listings
- Verified factual accuracy and evaluated content credibility against detailed, evolving quality guidelines
- Consistently exceeded quality targets, earning performance bonuses on multiple occasions
- Applied EN ↔ ES translation and bilingual content evaluation across Spanish-market tasks
Web design & development | Dec 2017 – Feb 2019
- Full-stack web development for multiple clients, handling projects end to end from brief to deployment
- Led recovery after a client security breach: restored backup, rebuilt lost content, and hardened the installation
- Managed Google Ads and Analytics campaigns across international markets, improving engagement by up to 30%
- Designed logos and visual identity for two clients
- natural-acupuncture.com - Performance optimization, SEO, site migration
- acupunturanatural.com - Site optimization and maintenance
- acupuntura-natural-colombia.com - Full site setup and maintenance
- sanadayana.com - Logo design and business advice
- luisbomati.es - Logo design, site design and development
- adrianskar.com - Personal portfolio (currently under development)
- libft - Custom C library covering string manipulation, memory operations, linked lists, and I/O. Focuses on memory safety, proper error handling, and understanding standard library internals.
- get_next_line - Line-by-line file reader using linked lists for multi-file descriptor support. Implements efficient buffer management and static variables for state persistence.
- ft_printf - Printf reimplementation using function pointer dispatch tables and variadic functions. Handles 9 format specifiers with proper type conversion and base operations.
- Born2beRoot - Secure Debian server setup with encrypted LVM, SSH hardening, UFW firewall, sudo policies, and automated system monitoring script.
- Devvy - Developer reference platform (Django + JavaScript)
- Tesla landing clone - Modern landing page with Astro + Tailwind CSS
Butarque vocational training centre | Oct 2025 – Jun 2026
- Official vocational qualification in information systems management
- Centre certificate received June 2026; official Comunidad de Madrid diploma pending
Software engineering — C programming | 2024
- Intensive peer-to-peer systems programming curriculum in C, no instructors or lectures
- Built a custom C library, a
printfreimplementation, and a hardened Debian server (projects above) - Emphasis on memory management, teamwork, and fully self-directed learning
Web programming with Python and JavaScript | 2021
- Completed capstone project: Devvy
- Full-stack development with Django and JavaScript
JavaScript algorithms and data structures certification | 2021
- JS30's vanilla JavaScript challenge @Wes Bos | 2023
- Git, GitHub & SourceTree @Keepcoding | 2020
- Relational databases, SQL & MySQL @Keepcoding | 2020
- Data warehousing & BI (IFCD013PO) @Hazerta | 2020
- Computing & networking essentials @Pluralsight | 2020
- More
- Spanish: Native
- English: Professional proficiency
- 🌐 Website: dev.adrianskar.com
- 💼 LinkedIn: linkedin.com/in/adskar
- 📧 Email: adrian+gh@adrianskar.com
- 📍 Location: Madrid, Spain