Hello, dev.to — I'm Victor: 10+ years full-stack, two CTO runs, now solo and writing in the open

Victor, a full-stack engineer based in South Korea with over 10 years of experience and two CTO roles, has launched an English-language blog on dev.to to share his work on self-hosted LLMs and solo product development. He is currently running a solo studio focused on building AI infrastructure on a single RTX 3090, including local model serving and agent runtimes. Victor is also open to remote contracts and consulting in full-stack and AI engineering.

Hi. I'm Victor , a full-stack engineer based in South Korea, and this is my first post here. I've been writing for a while — just in Korean, on my own blog. I'm starting fresh in English on dev.to because most of what I'm working on now self-hosted LLMs, full-stack infra, building products as a one-person studio lives in conversations that happen in English, and I'd rather be in those conversations than next to them. So, a short introduction. I've spent 10+ years in this work. I started on the frontend, drifted into mobile, and eventually owned the whole stack — frontend, backend, infra, and the decisions that connect them. Along the way I did two CTO runs : More recently I spent a year as a remote full-stack contractor for a US SaaS Wyzly , shipping features and running production on Next.js and Supabase across a 14-hour time difference. Remote-across-timezones is its own skill, and that year sharpened it. I've also built enterprise AI work — an LLM agent system for a large organization — and earlier in my career, a stretch of interactive and kiosk experiences for major Korean enterprises and global brands at a creative-tech agency. Different worlds white-glove enterprise vs. scrappy startup , and I'm glad I saw both. These days I run a solo studio and spend most of my energy on two things. Building my own products. Running AI infrastructure on my own hardware. A lot of my recent work is figuring out how far you can get on a single RTX 3090 — local model serving, an agent runtime that uses tools and cron and touches real files, KV-cache and quantization tuning, RAG pipelines. It's equal parts engineering and cost discipline, and it's the most fun I've had in years. I want to write in the open about the stuff I'm actually doing: I'm also open to remote contracts and consulting with global teams — full-stack and AI-engineering work, or CTO-level architecture. But I'm not here to pitch; I'm here to be useful and to learn in public. If something I write helps you, that's the win. If any of this overlaps with what you're working on — local LLMs, indie products, remote contracting — I'd genuinely like to hear how you're approaching it. Leave a comment, and I'll see you in the next post. — Victor