Python Developer

About haseln
haseln helps B2B companies across the DACH region start conversations with the right decision-makers. We combine outbound sales with our own technology and work with startups as well as established mid-sized companies. We’re a small team, growing fast.
The role
Python powers much of what we build. You’ll develop the backend systems, data pipelines and automations behind our in-house products.
What you’ll do
Build and maintain backend services and APIs in Python.
Develop data pipelines that collect, clean and enrich data.
Integrate third-party systems and automate workflows.
Build LLM-powered features together with the team.
Keep our code simple, tested and easy to extend.
You’re a fit if
You have solid experience with Python (FastAPI, Django or similar).
You’re comfortable with SQL databases such as PostgreSQL.
You’ve worked with APIs, scraping or data processing.
You use AI tools in your daily work and ship fast.
You speak good English. German is a plus.
You’re probably not a fit if
you need detailed specs before you get started.
you prefer polishing code to shipping it.

Work arrangement
Yes