Andrey Grunev

I'm a Staff Software Engineer at Toggl, and after 12 years shipping front-end and full-stack products, my work today is almost entirely about AI. On Toggl's AI strike team, I build AI agents and agentic workflows, and I've contributed to the AI features inside our product — an in-app assistant that answers questions over your report data, with source citations. The part I'm most proud of is helping a whole engineering org become AI-native. I led the adoption of agentic coding tools, built a shared internal library of AI skills and plugins, and ran guild talks, workshops, and live demos to get engineering shipping with AI — not just experimenting with it. I also build in the open. My YouTube channel, The Gray Cat (@thegraytcat), is where I test AI coding tools for real and share honest results — what works, what doesn't, and what it costs. The 12 years of front-end and full-stack work didn't go anywhere. They're the reason the AI I build ships to production instead of staying a demo. Tech I work with: AI agents & LLM applications, prompt engineering, MCP, Claude / Claude Code; React, TypeScript, Remix, Next.js; Node.js, Go, PHP, PostgreSQL; GCP, Docker, CI/CD. Let's build something.