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DevMind
devmind
Multi-agent AI system that investigates, plans, codes, and documents autonomously using Claude Opus.
Open to freelance projects
Carlos Del Hierro
Drupal Senior Developer & Applied AI · 15+ years of experience
Custom Modules · Python · Headless
About Me
With over 15 years in the tech industry and 10+ working with Drupal, I build complex web solutions that scale. I specialize in custom modules, version migrations and headless architectures with Drupal as a robust backend.
I currently work at Sopra Steria on large-scale enterprise projects — internationalization systems, external API integration and performance-oriented architectures. In parallel, I'm pursuing a Master's in AI applied to web development to integrate intelligent capabilities into the modern Drupal stack.
What sets me apart is not just technical knowledge — it's knowing when and how to apply it to make the business work better.
15+
Years Experience
10+
Years with Drupal
2
Master's Degrees
6
Open Source Projects
Expertise & Services
Custom Module Development
Building complex, high-performance logic tailored to specific business needs using Drupal API best practices.
Drupal Migrations
Seamlessly migrating data and infrastructure from legacy systems or previous versions to Drupal 10/11.
Decoupled & Headless
Architecting modern decoupled solutions using Drupal as a robust backend for React/Next.js frontends.
Drupal + Artificial Intelligence NEW
Integration of language models (Claude, GPT) into Drupal editorial workflows: AI-assisted content generation, automatic tag suggestions, real-time translation and automation of repetitive tasks from the node editor.
Open Source Projects
🛡️
AI Security Shield
ai-security-shield
AI-powered cybersecurity middleware that defends against AI-based attacks (prompt injections, malware, deepfakes) in real time.
🔍
VibeCheck
vibecheck
AI-aware code review tool that catches hallucinated APIs, fake tests, and insecure patterns introduced by AI assistants in PRs.
✅
Drupal Content Validator
drupal-content-validator
Configurable business rule validation module. Real-time status block with progress bar.
⚡
Drupal + Next.js Headless Starter
drupal-nextjs-starter
Headless starter kit with Drupal 10 as GraphQL backend and Next.js 14 App Router. ISR, metatags and TypeScript.
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Drupal AI Assistant
drupal-ai-assistant
Module that integrates Claude (Anthropic) into the node editor. Generates content, suggests tags and translates.
Experience
Drupal Senior Developer | Sopra Steria
Custom module development on enterprise projects. Drupal solution architecture focused on performance, maintainability and team collaboration.
- Implementation of ES/EN internationalization system for educational platform (ECTS, modalities, start dates)
- Integration with external APIs using OAuth2 authentication
- Twig templates for multilingual conditional rendering
Drupal Senior Developer | The Whiteam
Technical leadership on complex Drupal projects for multiple clients in parallel.
- Custom module architecture with Plugin API and Event Subscribers
- Technology decisions and team code review
Drupal Developer | CIC Consulting Informático
Deep specialization in Drupal. Full-stack development across projects of varying scale and sector.
- Drupal 7, 8 and 9 across multiple industry sectors
- Version migrations using Migration API
- Full cycle: analysis, development, integration and deployment
Web Developer | Arko Promociones
Web development for the cultural sector. Formative stage in front-end and content management with CMS.
Education
BIG school
Master in AI Development
2025 — 2026
Practical projects integrating AI in web development, process automation, and deployment of intelligent applications. Specialized training in the use and application of artificial intelligence in software development.
INESEM Business School
Master in Multiplatform Application Management and Development (DAM)
2021 — 2023
Multiplatform application development with focus on Kotlin, databases, and modern technologies.
Forcontu
Introduction to Drupal 10
2023 — 2023
Specialized training in web development with Drupal 10.
Coursera
Google IT Automation with Python
2023 — 2023
Google certification in IT automation with Python. Skills: Google Cloud, Python, Git, automation.
Forcontu
Introduction to Drupal 9
2020 — 2020
Training in Drupal 9 development.
CESINE
Computer Engineer
2006 — 2010
Computer Engineering. Comprehensive training in computer science, programming, and systems.
Skills & Technologies
Drupal & PHP
Drupal 10/11
Expert
PHP 8.3
Expert
Symfony
Advanced
Twig
Advanced
Composer/Drush
Advanced
Frontend & APIs
JavaScript
Advanced
Next.js 14
Solid
GraphQL/JSON:API
Solid
CSS / Sass
Advanced
REST APIs
Advanced
DevOps & AI
Docker / DDEV
Advanced
MySQL/MariaDB
Advanced
Git / CI-CD
Advanced
Python
Intermediate
Anthropic/LLMs
Growing
Certifications
Coursera
Specialization - Google IT Automation with Python
6-course certificate developed by Google. Includes Python, Git, IT automation, and troubleshooting.
Coursera
Automating Real-World Tasks with Python
Writing Python scripts to interact with APIs and process data.
Coursera
Configuration Management and the Cloud
Configuration management using Puppet and cloud deployment.
Coursera
Troubleshooting and Debugging Techniques
Techniques for diagnosing and fixing software and infrastructure issues.
Coursera
Introduction to Git and GitHub
Version control, repository management and collaboration using Git and GitHub.
Coursera
Using Python to Interact with the Operating System
Writing scripts and automating OS-level tasks using Python.
What's Next?
Do you have a Drupal project?
I'm open to freelance projects, technical consulting and new opportunities. If you need a custom module, a migration, a headless architecture or want to explore how to integrate AI into your Drupal platform, write me.
🟢 Available for freelance projects and consulting