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About Antonija Pek

I'm a Lead Product Designer and design engineer in Helsinki, Finland. I have 15+ years of product design experience at Yousician, Wolt, and AI startups, and I ship production code, not just Figma files. My latest product is Vocabbie, an AI language tutor for iOS and Android that I designed, coded, and shipped on my own.

Book a call hi@apek.me

What I do

Product design, design systems, and frontend development. On the web I work in React, Svelte, SvelteKit, and Next.js with TypeScript. On mobile I work in React Native and Expo, with Supabase behind it. I build my own AI agents on the Claude Agent SDK and use them to explore design directions and ship faster. I also do user research, UX writing, data analysis, accessibility, and Figma plugins.

Where I've worked

Things I built

  • Vocabbie Mobile app. AI language tutor, live on iOS and Android. Designed, coded, and shipped solo. React Native, Expo, TypeScript, Supabase, TanStack Query, Reanimated, RevenueCat, PostHog.
  • AI Party Podcast. Podcast about designing with AI, hosted by Antonija Pek and Vitali Gusatinsky.
  • Period Or Not Mobile app. Private, offline-first period tracker for iOS. No accounts, no servers, no analytics.
  • Pooperton Mobile app. Digestive health tracker for iOS, SwiftUI.
  • Monoset Design system. Minimal, monotone design system: tokens and React components.
  • Perfect Cut Tool. Podcast editor that cuts filler words (paid app).
  • Icon Grid Maker Figma plugin. Generates icon grids in Figma.
  • Color Scale Figma plugin. Generates color scales from a base color.
  • Name Scrambler Figma plugin. Anonymizes names and personal data in Figma files.
  • Figma + Vue Starter Open source. Starter template for Figma plugins with Vue.js.
  • React Figma Starter Open source. Starter template for Figma plugins with React and TypeScript.

Questions people ask

Who is Antonija Pek?
I am a Lead Product Designer and design engineer in Helsinki, Finland. I have 15+ years of product design experience at Yousician, Wolt, and AI startups, and I ship production code, not just Figma files. My latest product is Vocabbie, an AI language tutor for iOS and Android that I designed, coded, and shipped on my own.
Are you a designer or a developer?
Both. I am a product designer who writes and ships production code: React, Svelte, and Next.js on the web, React Native and Expo on mobile. I design in code rather than handing off Figma files.
Where are you based?
Helsinki, Finland. I work with startups in Finland, across Europe, and worldwide.
Who built Vocabbie?
I did, alone: brand, interaction design, the React Native code, speech grading, and the release pipeline. Vocabbie is an AI language tutor on iOS and Android, built with React Native, Expo, TypeScript, and Supabase.
What is Dax?
Dax is the AI agent I built for myself on the Claude Agent SDK. I talk to it over Telegram by voice or text. It watches Vocabbie metrics, runs my calendar, adds todos to TickTick, triages my inbox, and drafts posts in my voice.
What is the AI Party podcast?
AI Party is a podcast about designing with AI that I host with Vitali Gusatinsky. It is on Spotify and Apple Podcasts and at apek.me/designpartypodcast.
Where do you write?
On Substack at antonijapek.substack.com (Vibe & Ship) and at apek.me/blog. Topics: designers shipping code, AI agents, and building products solo.

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