# Dennie Ordynskyi > Product designer at DraftKings and creator of Numi, Tysha, and Karta. Based in Kyiv, Ukraine, with 14+ years of experience designing mobile and web products. Updated: 2026-09-23. Dennie (also known as Denys Ordynskyi) designs and builds independent products from idea to launch. Numi is released on the App Store. Tysha is also available on the App Store; Karta is a live restaurant ordering and payment web platform. He is open to senior product design roles and select collaborations, working with teams in the US and Europe. This index links to Markdown versions of the public website. Each document identifies its canonical HTML source. The case studies explain project decisions; the résumé contains the career history. Original article publication dates remain in the HTML metadata. ## Profile and approach - [Dennie Ordynskyi — Product Designer](https://imdennie.com/index.html.md): Dennie Ordynskyi is a product designer at DraftKings and the creator of Numi, Tysha, and Karta. Explore his work, approach, and writing. - [My story — Dennie Ordynskyi](https://imdennie.com/story.html.md): From Ukraine to products used by millions: the story of Dennie Ordynskyi, a product designer at DraftKings and the creator of three independent products. - [My approach — Dennie Ordynskyi](https://imdennie.com/approach.html.md): How Dennie Ordynskyi designs products: understand the problem, prototype early, simplify complex experiences, and follow the idea through to launch. - [Resume — Dennie Ordynskyi, Product Designer](https://imdennie.com/resume.html.md): Dennie Ordynskyi’s résumé: 14+ years in product design, experience at DraftKings, and the design and launch of Numi, Tysha, and Karta. ## Case studies - [Numi — case study · Dennie Ordynskyi](https://imdennie.com/case/numi.html.md): How Dennie Ordynskyi designed and launched Numi, an AI nutrition app for iPhone. Explore photo logging, product decisions, and the App Store release. - [Tysha — case study · Dennie Ordynskyi](https://imdennie.com/case/tysha.html.md): Designing Tysha, a baby-sleep sound app for one-handed use at 3 a.m. A case study in calm interfaces, offline audio, and shipping an iPhone app solo. - [Karta — case study · Dennie Ordynskyi](https://imdennie.com/case/karta.html.md): Designing Karta, a QR ordering and payment platform for restaurants. Explore the guest experience, owner dashboard, and product decisions. ## Writing - [Blog — Dennie Ordynskyi on Product Design, AI & Building Apps](https://imdennie.com/blog/index.html.md): Notes by Dennie Ordynskyi on product design, AI interfaces, design careers, and building independent apps from idea to launch. - [AI product design: designing for the cost of being wrong | Dennie Ordynskyi](https://imdennie.com/blog/ai-product-design.html.md): Designing AI products for the cost of being wrong: correction paths, draft states, output length, and lessons from shipping real products. - [AI UX patterns that survive contact with a real model | Dennie Ordynskyi](https://imdennie.com/blog/ai-ux-patterns-that-survive-contact-with-a-real-model.html.md): Seven AI UX patterns from shipping Numi: correction-first results, useful waiting states, deterministic scores, and knowing when to stay silent. - [Designing AI Products: 6 Lessons From Building an AI Nutrition App | Dennie Ordynskyi](https://imdennie.com/blog/designing-ai-products.html.md): Six lessons from designing Numi, an AI nutrition app: uncertainty, latency, correction, trust, and interfaces for probabilistic products. - [How to Become a Product Designer in 2026 — Advice From 14 Years In | Dennie Ordynskyi](https://imdennie.com/blog/how-to-become-a-product-designer.html.md): How to become a product designer in 2026: practical advice on skills, portfolios, first jobs, and AI from a designer with 14+ years of experience. - [I Shipped Two iOS Apps Solo — What AI Changed About Being a Designer | Dennie Ordynskyi](https://imdennie.com/blog/shipping-apps-solo-with-ai.html.md): What changed when a product designer built and shipped Numi and Tysha solo with AI: prototyping, iteration, and the design work that still matters. - [UX for machine learning: the interface is a measuring device | Dennie Ordynskyi](https://imdennie.com/blog/ux-for-machine-learning-the-interface-is-a-measuring-device.html.md): How interface design shapes what machine learning systems learn: correction paths, checkability, and knowing when to show nothing. ## Products and contact - [Numi](https://getnumi.app): Released iPhone nutrition app with photo-based meal logging, macros, micronutrients, insights, and fasting. - [Tysha](https://tyshaapp.com): Baby-sleep sound app with real-time noise mixing, saved Rooms, and a fading sleep timer; works offline without accounts or ads. - [Karta](https://karta-nu.vercel.app/): QR ordering and payments for restaurants, with a guest menu and an owner dashboard. - [Linc project](https://imdennie.com/#linc): Cloud studio platform for content creators; Dennie was the founding product designer. - [Earlier work](https://imdennie.com/#track-record): MyGoTrainer, Shipshape, Chatbox, and e-commerce project galleries. - [LinkedIn](https://www.linkedin.com/in/dennieo/): Professional profile. - [Contact](https://imdennie.com/#contact): Senior product design roles and select collaborations. ## Optional - [Complete public website text](https://imdennie.com/llms-full.txt): Combined Markdown content from all public pages. - [Sitemap](https://imdennie.com/sitemap.xml): Canonical HTML pages for crawlers.