What Is RAG (Retrieval-Augmented Generation)? The Complete Guide
RAG stands for Retrieval-Augmented Generation. It is a technique that makes AI language models smarter by giving them access to external information before they generate a response.
CTO with 16+ years building AI systems, blockchain platforms, and enterprise software across 8 companies. Tech investor, published author, and founder of Taxi Gratis NGO.
I am a Romanian technology leader based in Bucharest, with expertise spanning artificial intelligence (RAG systems, LLMs, AI agents, neural networks), blockchain technology (smart contracts, DeFi, provably fair systems), cybersecurity (infrastructure hardening, compliance, penetration testing), technical SEO (international SEO, crawl budget optimization, Core Web Vitals), and cloud architecture (AWS, Azure, Terraform, serverless). I am an active tech investor focused on AI, blockchain, and cybersecurity startups, and a published author on Amazon, HackerNoon, and Authority Magazine.
Romanian technology leader based in Bucharest. Currently leading two companies and running an NGO.
From network administration to C-suite technology leadership across 8 companies.
Apr 2022 – Present
Extremoo
Leading technology strategy for iGaming affiliate operations. Built AI-powered automation systems, international SEO architecture, and data validation pipelines serving millions of users globally.
Apr 2022 – Present
CasinoAlpha
Transformed a regional review platform into a global, multi-language operation. Implemented provably fair gaming verification, automated compliance monitoring, and enterprise-grade security infrastructure.
Apr 2013 – Present
Asociatia Taxi Gratis
Founded and operate Romania's free medical transportation NGO. 30,000+ km/year, 400+ people helped annually. Expanded during COVID-19 to support healthcare workers.
Feb 2021 – Mar 2022
Key Way Group
Led enterprise software engineering across multiple products. Managed cross-functional engineering teams and drove technology modernization initiatives.
Jan 2018 – Jan 2021
Key Way Group
Built and scaled engineering teams. Implemented modern development practices, CI/CD pipelines, and microservices architecture.
Sep 2017 – Dec 2018
ConsultaClick Romania
Led software development for healthcare technology platform connecting patients with medical professionals.
Mar 2017 – Sep 2017
Mandarine International SA
Directed engineering operations for international digital services company.
Sep 2015 – Mar 2017
Pathwwway
Managed complex technology projects using PRINCE2 and Agile methodologies.
Nov 2014 – Sep 2015
EASTAUCTIONS
Managed IT infrastructure and operations for online auction platform.
Oct 2013 – Oct 2014
Medi-Cab
Led technology projects in the medical transportation sector.
Oct 2010 – Jan 2013
DeverSoft
Software development and IT systems management.
Jan 2008 – Sep 2009
miniPRIX
E-commerce technology operations and development.
Sep 2006 – Jan 2008
JMG
Network infrastructure setup, maintenance, and security.
The tools and frameworks I work with daily across AI, blockchain, cloud, and web engineering.
Free medical transportation for those in need across Romania since 2013.
After losing my mother following years of immobilization and difficult hospital visits, I founded Asociatia Taxi Gratis in 2013 in her memory. What started as a personal mission has grown into a vital community service.
The NGO covers over 30,000 kilometers per year and assists around 400 people annually. Starting with my personal sedan, I later upgraded to a specially adapted minibus with a ramp for people with disabilities.
When COVID-19 hit, I expanded our mission to directly support healthcare workers in Bucharest, equipping vehicles with protective panels for safe transportation between homes and hospitals.
"Life's challenges, as daunting as they may seem, are opportunities to make a difference. It's not just about overcoming obstacles; it's about transforming them into pathways of support and care for others."
Alex Bobes
Featured in international media for technology leadership and social impact.
"Had the pleasure and the privilege of working with Alex on Key Way Group. Alex is an amazing CTO, from caring on personal level on all team to diving in directly to technical issues and provide his consultancy and deep knowledge whenever was needed. It would be an honor to be able to work again with Alex any time."
Savvas Georgiou
"Alex explained the inner workings of the technology perfectly and was instrumental in helping me to find my feet in the Crypto vertical sector. I highly recommend Alex!"
Raul Savu
"Working with Alex has been a very pleasant experience. He has a great diversity of skills that made our projects go smooth, and eased the communication between our departments. He is a very dedicated professional, a serious CTO and a strong leader to his teams."
Alina Bota
Practical insights on AI, blockchain, cybersecurity, and software architecture from 16+ years of CTO experience.
RAG stands for Retrieval-Augmented Generation. It is a technique that makes AI language models smarter by giving them access to external information before they generate a response.
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