KAROLINA

BITTMAN

AI Product Engineer.

AI Product Engineer.

AI Product Engineer.

From concept to deployed product, solo: UX design, front-end, and the AI layer RAG, agents, MCP in one person.

From concept to deployed product, solo: UX design, front-end, and the AI layer RAG, agents, MCP in one person.

Shipped, not just designed.

Shipped, not just designed.

Five AI-powered products in production — a B2B research agent, a consented health app on the App Store, and a paid SaaS that's survived real production incidents. I pick the architecture that fits the problem, from rule-based injection to agentic RAG.

Five AI-powered products in production — a B2B research agent, a consented health app on the App Store, and a paid SaaS that's survived real production incidents. I pick the architecture that fits the problem, from rule-based injection to agentic RAG.

E-commerce website & brand refresh

Web Design & Implementation · Shopify · SEO

TAO Infinity

2023-NOW

Projects

Projects

Projects

Work experience

Work experience

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

TAO Infinity | Sustainible Yoga & Activewear Brand

Founder & E-Commerce Developer · 2023 - Present

Built and managed a real e-commerce brand as a hands-on digital project, covering design, front-end work, SEO, and platform management. The store was initially developed using WordPress & WooCommerce and later migrated to Shopify as the brand and product range grew.



Project background



TAO Infinity started as a small WooCommerce store to test products, content, and SEO. As the number of products, collections, and marketing activities increased, I evaluated the technical and operational limitations of WooCommerce and decided to migrate the store to Shopify to improve scalability, performance, and day-to-day workflow efficiency.



What I did in practice



  • Built the first version of the store using WordPress + WooCommerce

  • Structured product pages, categories, and content with SEO in mind

  • Managed products, descriptions, images, and metadata in WooCommerce

  • Identified performance, maintenance, and scalability challenges as the store grew

  • Planned and executed the migration from WooCommerce to Shopify

  • Rebuilt product pages, collections, navigation, and content structure in Shopify

  • Optimised product titles, descriptions, tags, and metadata for SEO after migration

  • Ensured responsive behaviour and usability across devices

  • Continuously iterated on structure, content, and performance based on real usage




Skills applied



Shopify · WooCommerce · WordPress · Front-end Fundamentals · UI structure · SEO · E-commerce architecture · Platform migration



Key takeaway



Building the same store on two different platforms gave me practical insight into real-world trade-offs between flexibility, scalability, performance, and long-term maintenance in e-commerce projects.

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

What I do

What I do

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.

The tools I'm using

The tools I'm using

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

WordPress & Elementor (CMS)

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'm Karolina

I'm Karolina

A passionate designer focused on creating thoughtful, user-centered digital experiences.

I enjoy building and improving real products, balancing aesthetics, usability, and technical structure.

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.

Contact

Contact