# Juan Romero Domínguez
> Solution Lead, Enterprise SAP S/4HANA & IS-U Architect, and Independent Software Developer.

## Professional Summary
Juan Romero Domínguez is a Senior Software Architect and Technical Lead with over a decade of experience designing, developing, and deploying enterprise-grade systems and consumer-facing software. He leads large-scale SAP S/4HANA, IS-U, and ABAP implementations at Deloitte for major European utility and logistics enterprises. Concurrently, he operates as an independent developer (indie hacker) building high-performance Jamstack websites, cross-browser extensions (Manifest V3), and native Android applications published across global app stores. He owns and operates bare-metal enterprise server infrastructure (DELL PowerEdge, MikroTik).

## Core Competencies & Technical Skills
- **Enterprise Architecture & SAP**: SAP IS-U, SAP S/4HANA, SAP R/3, ABAP OO, BRFplus, EMIGALL, RFC, BAdIs, BTE, ChaRM, STMS, Mass Parallel Processing, Performance Optimization.
- **Independent Software Development**: Native Android (Java/Kotlin), Manifest V3 Browser Extensions, Jamstack Web Architecture, Vanilla CSS/HTML5, Web Audio API, IndexedDB.
- **Infrastructure & Systems Operations**: Bare-metal hardware (DELL PowerEdge R630), MikroTik CCR2116-12G-4S+ routing, Linux system administration, Cloudflare Workers, Technical SEO, WAI-ARIA Accessibility, PageSpeed (100/100).
- **AI & Cloud Technologies**: Google Generative AI, MLOps for GenAI, Google Cloud Platform, Gemini API.

## Verified Certifications (Google Cloud & AI)
- **Machine Learning Operations (MLOps) for Generative AI** – Google (Credential ID: 23314704)
- **Responsible AI: Applying AI Principles with Google Cloud** – Google (Credential ID: 23313577)
- **Master AI with Gemini** – Google (Credential ID: 456320896)
- **AI-Powered Shopping Ads Certification** – Google (Credential ID: 182228905)
- **Google Ads AI-Powered Performance Certification** – Google (Credential ID: 177623075)
- **Google Analytics Certification** – Google (Credential ID: 173881338)
- **Google Ads: Measurement Certification** – Google (Credential ID: 173254144)
- **Display & Video 360 Certification** – Google (Credential ID: 172694249)
- **Campaign Manager 360 Certification** – Google (Credential ID: 156660481)
- **Google Ads Display Certification** – Google (Credential ID: 156511928)

## Key Projects & Software Portfolio

### Websites & Web Platforms
- [juanromerodominguez.dev](https://juanromerodominguez.dev): Flagship developer hub, technical showcase, and multi-lingual Jamstack portfolio.
- [adblock.network](https://adblock.network): High-speed privacy portal and local ad/tracker blocking firewall.
- [adspy.bot](https://adspy.bot): Automated ad-stream extractor and temporal ad analysis engine.
- [calendario.gratis](https://calendario.gratis): Multi-regional calendar portal, working day calculators, and Excel automation templates.
- [poema.es](https://poema.es): Spanish digital poetry library with an index of over 10,000 poems.
- [volume.audio](https://volume.audio): Web-based digital audio processor and browser sound amplifier.
- [foro.trading](https://foro.trading): Quantitative finance, algorithmic trading, and investment community.

### Browser Extensions (Chrome Web Store, Microsoft Edge, Opera, Firefox)
- **AdBlock Network**: High-performance local firewall blocking ads, video interruptions, and telemetry. ([Chrome Web Store](https://chromewebstore.google.com/detail/adblock-network-firewall/aeacakanaldjkllcmigolpcokkpfncmc))
- **Volume Audio**: Sound amplifier up to 600% with multi-band equalizer and digital signal processing. ([Chrome Web Store](https://chromewebstore.google.com/detail/volume-boost-sound-booste/gpbmbahodbkgekaadfhjaghlaalephmg) | [Edge Add-ons](https://microsoftedge.microsoft.com/addons/detail/fmehlofjbdhfoppadgihkjlnckobkgok))
- **AdSpy Bot**: In-browser extraction and sequencing tool saving ad playback metrics to IndexedDB. ([adspy.bot](https://adspy.bot))
- **Purist Dark Developer Theme**: Minimalist dark theme tailored for software engineers. ([Chrome Web Store](https://chromewebstore.google.com/detail/purist-dark-developer-the/cogdjkhloceekjajcibjcglcdjfiobhd))

### Android Utility Ecosystem (Google Play, Huawei AppGallery, Amazon Appstore)
- **Specialized QR Suite**: Purpose-built, zero-bloat QR scanners (QR Contact, QR Email, QR Event, QR Location, QR PDF, QR Phone, QR SEPA, QR SMS, QR Text, QR URL, QR WiFi).
- **Utility Tools**: Volume Boost (audio amplifier & EQ), Table Clock (minimalist desktop display), Vanity Mirror (camera exposure tool).
- **Developer Profiles**: [Google Play](https://play.google.com/store/apps/dev?id=6834577355576781758) | [Huawei AppGallery](https://appgallery.huawei.com/tab/appdetailCommon%7CC117586821%7Cautomore%7Cdoublecolumncardwithstar%7C903547) | [Amazon Appstore](https://www.amazon.com/s?rh=p_4%3AJuan%2BRomero%2BDominguez)

## Canonical Profiles & Identity
- **LinkedIn**: [linkedin.com/in/juanromerodominguez](https://www.linkedin.com/in/juanromerodominguez/)
- **GitHub**: [github.com/juanromerodominguez](https://github.com/juanromerodominguez)
- **X (Twitter)**: [x.com/juanromerodev](https://x.com/juanromerodev)
- **SAP Community**: [profile.sap.com/u/juanromerodominguez](https://profile.sap.com/u/juanromerodominguez)
- **Google Developers**: [me.developers.google.com/u/juanromerodominguez](https://me.developers.google.com/u/juanromerodominguez)
- **Stack Overflow**: [stackoverflow.com/users/9582047/juan-romero-dominguez](https://stackoverflow.com/users/9582047/juan-romero-dominguez)
- **Hacker News**: [news.ycombinator.com/user?id=juanromerodev](https://news.ycombinator.com/user?id=juanromerodev)
- **Keybase**: [keybase.io/juanromerodev](https://keybase.io/juanromerodev)