Agentic engineer & freelance full-stack developer
5+
years freelance
13+
products in production
4
markets (CZ/SK/PL/HU)
100+
satisfied clients
I'm Ondřej Knedla, a freelance full-stack developer with 5+ years of experience shipping production applications. I build SaaS products, B2B pipelines, and multi-language sites for clients across the Czech Republic, Slovakia, Poland, and Hungary.
My daily stack: Next.js 16, TypeScript, Bun, Python, and PostgreSQL. I use AI tools as productivity leverage - they help me ship faster, but the work is mine and every decision goes through me. The path from brief to production shortens from weeks to days.
My portfolio spans a wide range of domains: brand ecosystems and e-commerce (Lázeňská káva - pestik.cz, greenplantation.eu, eshop.lazenskakava.cz), B2B accounting SaaS (DokladBot, Maruška), enterprise lead generation pipelines (Krtek - 100K+ firms), multi-language ticketing platforms (DJ BOBO Tour 2026, restarticket, sixartticket CZ/PL), event marketing (Halloween Rave 2026), hospitality (Little Island), and coaching platforms (Holky s úspěchem). Breadth is my differentiator.
I work build-in-public - code, documentation, and metrics are transparent. This site is proof: open-source codebase, public case studies with real metrics. If I built it, I show the code, not PR photos.
From first freelance projects to agentic-first specialization.
Independent · Prague & remote
Building complete products from brief to production - frontend, backend, integrations, deployment. AI tools as part of the workflow for automation, content pipelines, and scraping. Clients seeking fast delivery and measurable outcomes.
Independent · CZ / SK / PL / HU
Complete brand ecosystem for Lázeňská káva (3 sites: pestik.cz, greenplantation.eu, eshop.lazenskakava.cz), multi-language ticketing platforms (sixartticket.cz/.pl, restarticket.com), event marketing (halloweenrave.pl), and B2B SaaS (DokladBot, Maruška). Stack: Next.js, TypeScript, Vercel, Stripe, vendor APIs (SixArt, TicketLive).
LEGO Group · Brno
One-year contract on the LEGO Group internal IT team. CI/CD pipelines, infrastructure-as-code, monitoring, incident response, on-call rotation. International team, enterprise-grade scale.
Independent · Freelance
Main freelance phase. DokladOID (registration-free invoice generator with ARES API), Akce Ostrava (events aggregator), affiliate sites, and marketing pages for SMBs. Foundational stack: React, Node.js, PostgreSQL, Tailwind.
Self-taught · Prague
Entry into programming through own projects. Web scraping pipelines (Playwright + Cheerio), Telegram bots, Python automation. Gradual formation of stack and methodology.
Actively used daily. No "heard of, never shipped".
Most projects go from idea to production in days, not weeks. DokladBot in 6 days, sixartticket in 11. No endless scoping calls.
I use AI tools daily, but the work is mine. They help me ship faster and at higher quality - not replace me. Every decision goes through me.
No PM layer. I identify the problem, design the solution, build it, ship it. The client gets a result, not a project manager.
Built so you can take it over. MDX over headless CMS, Postgres over proprietary DB, Vercel-portable code.
p95 latency, conversion rate, ship-days, cache hit ratio. No "modern stack" as justification - every decision has a number behind it.
I work with CZ, SK, PL, HU clients. Localization is not translation - it is different cities, vendors, currencies, naming. Built that way from start.