Alex
Kiersnowski

Senior Product Designer
& Design Engineer

10+ years bridging product design and production code. I take a product problem, decide what's worth building, and ship to real users in days. Best in early-stage startups and fast, high-autonomy teams.

Capabilities & Stack

Product & Strategy

  • Product Strategy
  • Product Scoping & Specs
  • Product Architecture
  • Live Market Validation
  • Feature Prioritisation

Design Systems

  • Figma (Tokens & Variables)
  • Component Architecture
  • Shadcn UI · Radix
  • Storybook

Engineering

  • Next.js · TypeScript
  • React · React Native
  • Expo
  • Supabase (Postgres / RLS)
  • Stripe · Vercel

AI & Integration

  • Claude Code · Cursor
  • Anthropic API · OpenAI API
  • LLM Integration
  • System Prompting

Let’s
build

alex.kiersnowski@gmail.com