Agents in production
Tools with narrow scopes, an evaluation loop against fixtures, a cost cap, models compared between releases. No framework you cannot debug.
For recruiters, contracting agencies and teams
Node.js and TypeScript for nine years, LLM agents in production since 2024. I build the tools, the evaluation loop and the cost cap, and I review every change an agent makes. Contract or full time, from November 2026.

Tools with narrow scopes, an evaluation loop against fixtures, a cost cap, models compared between releases. No framework you cannot debug.
Your product usable from ChatGPT and Claude, on top of your existing login, with adoption measured per client.
CLAUDE.md and AGENTS.md, skills, hooks and CI gates. In 2026 an agent opened about 30% of my team’s merged pull requests, and I reviewed about 85% of them.
React and Next.js, Node.js, PostgreSQL, Cloudflare Workers, PostHog. I ship the whole feature, from the database to the screen.
150 to 200 PLN an hour (45 to 55 USD), invoiced from Poland. Full time or a fixed number of days a week.
Open to a full-time role as an AI engineer or AI enablement lead. Salary to agree on the call.
November 2026. Remote from Wrocław (CET), office days by arrangement.
A 30-minute call, a technical conversation with your team, and I am happy to do a paid trial task instead of homework.
Fifteen years of shipping software, 25+ apps with 3.7M+ downloads, founding engineer at a SaaS shipped on eight platforms. The work below is described with numbers; client names stay private.
See also: AI & agents · Full-stack & custom software
See also: AI & agents · PostHog & product analytics
See also: AI & agents · AI in your company
Senior AI engineer from Poland: Node.js and TypeScript, LLM agents in production, MCP servers, evals and cost caps. B2B contract at 150 to 200 PLN an hour or full-time employment, from November 2026, remote from Wrocław.
FAQ
A free 30-minute call. You bring the problem, I bring questions. No prices on this page because scope comes first.
If I am the wrong person I will say so on the call and point you to someone better.
or write to ciunkos@gmail.com
After you book: a calendar invite, then the call. Nothing else to fill in.
Available from November 2026 · B2B contract or employment · Wrocław, Poland (CET), remote