AI engineer

Lucas Hadin — AI Engineer

I design, build, and deploy AI workflows and agents. With a background in data science and analytics, this portfolio demonstrates what I'm capable of in the AI space.

Hej from Göteborg, Sweden

Live Projects

Each project solves a real-world problem, and is fully deployed and live. Try them out for yourself!

Live Screenshot of Play The Part app

Play The Part

Live voice agent with semantic RAG, customizable voices, and AI-generated images. Perfect for roleplay, NPCs, and interactive AI experiences.

  • Semantic search (RAG) and response in under 2 seconds
  • Hundreds of customizable TTS voices with pitch/speed control
  • AI-generated contextual images matching conversations
Voice agent orchestration Semantic RAG Customizable TTS AI image generation FastAPI Gemini 2.5 Postgres + pgvector
Live Screenshot of Present-For-Me app

Present For Me

Generate narrated slide decks from a voice prompt.

  • From voice sample to presentation in under 5 minutes
  • End-to-end AI workflow with voice cloning
Multi-modal AI workflows Voice cloning Presentation automation LLMs Content generation
Live Screenshot of Ask Your Docs app

Ask Your Docs

Upload documents and receive cited answers in seconds.

  • Production-grade RAG using vector database
  • Instant document search with cited sources
Retrieval-Augmented Generation (RAG) LLMs Chatbot interface VectorDBs User Isolation
Live Screenshot of Movie Recommendations app

What To Watch

Choose your media mode, rate titles, get explainable recommendations, and save to your watchlist.

  • Swipe-first mobile UX and fast keyboard shortcuts
  • Media mode switch for movies, TV, or both
  • Hybrid engine with pgvector, CF, and knowledge graph
Vector similarity Collaborative filtering Knowledge graph FastAPI Next.js 14 PostgreSQL + pgvector FAISS MovieLens TMDB API

About Lucas

After 14 years shipping analytics and data products, I now apply that delivery muscle to AI engineering — taking ideas from prototype to production.

I'm a generalist who learns fast and isn't tied to a single stack. My experience spans from startups to large corporations.

Lucas Hadin profile picture
Lucas Hadin, AI Engineer
Wallaby with northern lights background
Why Arctic Wallaby? Australian roots that ended up in cold places.

AI Engineering-specific skills:

Python RAG LLMs SQL Agentic workflows Postgres + pgvector Docker LangChain Production deployment ASR (Whisper) FFmpeg FastAPI Next.js 14 Tailwind CSS Hybrid search Voice cloning Multi-modal AI Document parsing

Other Data Science skills:

Data tracking Data engineering dbt Data pipelines Dashboards Automated reports Presenting Ad hoc investigations Root cause analysis Classic ML Recommendation engines Segmentation A/B testing Prediction Forecasting Simulation Excel
Looking for opportunities as
  • AI Engineer or Data Scientist with AI Focus
  • Client-side or consulting opportunities
  • Permanant positions in Sweden (ideally Göteborg)
What you get
  • An IC who can scope, prototype, build and deploy
  • Great team player but also highly autonomous when needed
  • Wide experience across multiple industries
About me
  • Proud dad of two
  • Obsessed with bicycles
  • Electronic music connoisseur
  • Espresso hobbyist
  • 10 years in Sweden
  • Always learning and teaching

Want to ship something similar?

Interested in LLMs, Agentic workflows, Agents, or Machine Learning? Let's talk!