About this role
Most AI projects end in a slide deck. Ours go live. Lugano, Switzerland or remote within the EU About PHILIPP PLEIN PHILIPP PLEIN is a Swiss luxury fashion group with several brands, stores and online shops around the world. We are AI-first: we rethink how the work is done, then build it with AI. What you build lands directly with our merchandise, allocation, finance and operations teams. What you will do Learn how our tech stack works end to end and find the weak spots: slow, costly, fragile or outdated. Fix those spots (speed, cost, stability, security, clean code), then keep them healthy. Build AI-driven solutions end to end, frontend, backend and database, from first idea to daily use. Build agents and web apps for business teams; connect product, PLM and sales data (read only). Run ETL pipelines with Airflow: gather data from all systems, clean it, check it, improve it. Track every app, agent and pipeline: who did what, errors, cost and quality, so you can fix fast and keep improving. What you bring Experience: 3 to 5 years as a developer shipping software to production, at least one LLM solution used by real people, fluent English. Frontend: TypeScript, React or Next.js; clear, fast screens for business users. Backend: Python (FastAPI) or Node.js; REST APIs, sign-in, background jobs, automated tests. Databases and data: PostgreSQL, strong SQL, data modelling, migrations, query tuning; ETL orchestration with Airflow, data quality checks, dbt, Snowflake or Databricks. LLMs and agents: Claude and OpenAI APIs, prompts with cost limits, structured output, MCP, multi-agent with human approval (LangGraph, Pydantic AI or Claude Agent SDK), RAG, embeddings, vector search (pgvector), tool calling. Data science: pandas, scikit-learn, PyTorch, LightGBM or statsmodels; fo...