Denys K.

I help founders — technical or not — go from idea to a working product that generates first revenue. I don't just execute tasks — I catch the weak spots in your app before they cost you users or revenue. Especially strong with projects built fast, by multiple developers, or with AI tools. I also build AI-powered automation systems — a webhook or API trigger validates incoming data, calls Claude or OpenAI to do the thinking (extract, classify, draft, verify), then delivers the result to your database, Slack, or CRM. So manual work disappears without needing a full app rebuild. How I work: I start with your business logic, not a feature list — so we build the right thing once, instead of rebuilding it later. Before writing a single workflow, I flag what's likely to break under real users, what will get expensive to change down the line, and what can wait until after launch. You'll always know why a decision was made, not just that it was. I also document as I build — every key workflow, automation or decision — not after the fact. As a project grows, that documentation becomes your safety net: your team, a future developer, or even I myself six months later can understand and maintain the system without guessing. It's risk management, not paperwork. 🚀 What I do: • Build AI-powered workflows (Make, n8n) that connect your tools to Claude or OpenAI — parsing documents, drafting replies, routing data — so AI does the repetitive thinking, not you • Build MVPs and full products from scratch — idea → launch → first paying customer • Fix broken workflows and unreliable automations — so the app stops breaking under real users • Clean up messy database structures — so data stays accurate as you scale • Improve performance and load speed — so users don't leave before the app loads • Build and stabilize automation systems (Make, n8n, Airtable) — so manual work stops eating your time • Rebuild architecture for scalability — so growth doesn't mean starting over • Stabilize apps before launch — so you go live with confidence, not crossed fingers 💬 What clients say: "Den came into a difficult situation where an agency built a lot of our platform in a non-scalable way. He helped us fix all our data hierarchy issues and clean up tech debt... Do yourself a favor and hire Den and not waste time and money with an agency." — Marketplace Platform, Lead Developer "He over-delivered enormously... communicating makes sure we were always on the same page. He gave me the opportunity to make a choice about technical approaches, even with a non-technical background." — SchoolRallye, Business Automation "His ability to understand requirements quickly and transform ideas into working solutions efficiently and with high quality... very approachable, trustworthy, and committed to finding solutions — even in urgent situations." — Bubble Billing Architecture ⚙️ For technical folks / CTOs — how I work under the hood: Under the hood, I simplify business logic, remove duplicated processes, and structure data so the product stays maintainable a year from now — not just stable right after launch. • Design clean logic across tools (Bubble, Make, n8n, Airtable, Xano) • Build reliable backend processes and integrations with AI APIs (Claude, OpenAI) and backend platforms (Supabase, Xano) • Turn manual operations into automated systems • Document every workflow and system decision as I build — not after the fact — so you're never dependent on one person's memory to understand or maintain what's running I focus on: • Business logic first — the app does what the business actually needs, not just what's easy to build • Performance under real users — not just in a demo • Reducing technical debt early — so fixes today don't become rebuilds later • Clear documentation as risk management — if I'm hit by a bus tomorrow, your team (or the next developer) can pick up exactly where I left off 🗣 Non-technical founder? That's actually where I do my best work. I explain technical decisions in plain language, so you can make informed calls on trade-offs — not just trust a developer blindly. Broken systems = Lost revenue. 💼 Experience: • 100+ Bubble projects delivered — SaaS platforms, marketplaces, and internal automation systems • Recent work: a compliance tracking platform for a healthcare agency — staff upload required certification documents, and Claude API automatically extracts expiration dates, verifies name and date matches, and flags discrepancies before a manager reviews and approves. 🛠 Tech stack: Bubble (Certified), Make, n8n, Airtable, Supabase, Xano, Claude API, OpenAI API, APIs ⏰ Availability: EST hours, usually responding within a few hours Whether your app is a blank idea, an unstable build that needs fixing, or a manual process that needs an AI layer — I take it from where it is to where it needs to be.