# Alireza Rezvani — CTO & AI Engineer > Alireza Rezvani (Reza) is a Berlin-based CTO and AI engineer with 25 years building software. He works full-time as a CTO in AI MedTech, builds and open-sources agentic-AI tooling (18K+ GitHub stars), writes for 7,000+ engineers, and coaches the next generation of CTOs and founders. His aim: extend what people can do with agentic tools and AI, and help these systems learn from good human judgment. The site is bilingual — English under /en/ and German under /de/. ## What he does - AI & engineering advisory — architecting agentic-AI endeavors, build-vs-buy decisions, AI assurance and ISO 27001 readiness. - AI sprint setup — helping companies, CTOs, and VPs of Engineering set up and run an AI implementation sprint the right way, to save time and money. Advisory, not a fixed-price build or fractional-CTO retainer. - Coaching & mentoring — 1:1 for the next generation of engineers, founders, and CTOs: how to make hard decisions, and how to fail and stand back up. - Speaking & workshops — Claude Code and agentic development. ## Pages - [Home](https://alirezarezvani.com/en/): overview and how to work together. - [Services](https://alirezarezvani.com/en/services/): the four ways to work with Reza. - [Work](https://alirezarezvani.com/en/work/): selected client results. - [Projects](https://alirezarezvani.com/en/projects/): open-source projects and products. - [Writing](https://alirezarezvani.com/en/writing/): essays and field notes on agentic AI. - [About](https://alirezarezvani.com/en/about/): background, research, and vision. - [Contact](https://alirezarezvani.com/en/contact/): book a 20-minute call. ## Projects - [claude-skills](https://github.com/alirezarezvani/claude-skills): 345+ production-ready agent skills, 80+ plugins, and 30+ agents for Claude Code, Codex, Gemini CLI, Cursor and 9 more AI coding tools (18K+ GitHub stars). - [gAIOS](https://github.com/alirezarezvani/gaios): an open-source AI operating-system blueprint — turn any coding agent into a second brain and chief of staff. - [OpenLeo](https://openleo.ai): agents-as-a-service for founders and small businesses, built on open agent infrastructure. - [claude-code-skill-factory](https://github.com/alirezarezvani/claude-code-skill-factory): a toolkit for building production-ready skills, agents, and commands at scale. ## Research Computer vision, reinforcement learning, model fine-tuning, and corporate LLMs — focused on where AI learns from us, not just the other way around. ## Writing & profiles - [Medium](https://alirezarezvani.medium.com) - [Substack](https://alirezarezvani.substack.com) - [nGinity publication](https://medium.com/nginity): practitioner guides for Claude Code, Codex, and agentic coding. - [GitHub](https://github.com/alirezarezvani) - [Hugging Face](https://huggingface.co/rezarezvani) ## Contact A 20-minute call: you describe the problem; Reza tells you honestly whether and how he can help. Based in Berlin, working with teams and founders worldwide. https://alirezarezvani.com/en/contact/