KAROLINA
BITTMAN
Apple retail
Specialist · 2022 - 2025
Customer-facing role in a high-performance retail environment, advising customers on Apple products and digital solutions. This role strengthened my understanding of technology, user needs, and clear communication — skills I actively apply in my digital and front-end work. Key takeaways: User-centred thinking · technical understanding · communication · problem-solving
Founder & E-Commerce Developer · 2023 - Present
Founded and built a sustainable activewear brand end-to-end: e-commerce store, product and content structure, SEO, and brand. Shipped, iterated, and migrated the platform as it grew. Currently paused in favour of AI product work. Shopify · SEO ·
e-commerce · end-to-end ownership
Hospitality & Gastronomy | Bar & Service Roles
Barkeeper, Cocktail Bartender, Service, Chef de Bar
Worked for several years in fast-paced gastronomy environments, often with responsibility for entire locations, bar operations, and customer experience. These roles developed strong reliability, organisation, and teamwork skills that directly support my professional approach today. Key strengths developed: Responsibility · time management · teamwork · working under pressure
AI & LLM Engineering
Agentic RAG pipelines, MCP servers, multimodal (vision) workflows, and evaluation. Claude, Vercel AI SDK, Voyage embeddings, pgvector.
Full-Stack Product Development
React 19, Next.js App Router, TypeScript, Supabase (Postgres, Auth, RLS, edge functions), Stripe. From schema to deployed app.
Mobile & Cross-Platform
Expo / React Native with native integrations (HealthKit, camera, OCR), shipped through real App Store review.
UX & Interface Design
Token-based design systems, from Figma wireframes to production components. Design and build by the same hands means nothing gets lost in translation.
AI & LLM Engineering
Claude · Vercel AI SDK · MCP · pgvector · Voyage Agentic RAG · multimodal vision · embeddings & reranking
Front-End
React 19 · Next.js · TypeScript · Tailwind App Router · state management · token-based design systems
Backend & Data
Supabase · Postgres · Stripe · Zod Auth & row-level security · edge functions · payments & webhooks
Mobile
Expo · React Native · TypeScript HealthKit · on-device OCR · App Store releases
Design & Prototyping
Figma · Framer · Affinity UI design · wireframing · component systems
Tooling & Deployment
Claude Code · Git · Vitest · Vercel Testing · CI · EU hosting · production debugging
I ship AI products end-to-end, solo — from idea to App Store to live SaaS. RAG, agents, MCP, and the design layer, by the same hands.
Phone Number