Python Web Crawler & PunchOut Integration Engineer (m/w/d)

About the role

We're looking for an experienced Python engineer to build and maintain supplier integrations for our procurement platform. You'll develop robust web crawlers and PunchOut integrations, reverse engineer supplier APIs, and ensure reliable product data across hundreds of enterprise vendors.

Build the backbone of enterprise procurement.

At Lio, we're building the AI workforce for procurement. As a Python Web Crawler & PunchOut Integration Engineer, you'll build the integrations that connect hundreds of global suppliers to our platform. From reverse engineering APIs to developing resilient crawlers and PunchOut integrations - you'll solve complex technical challenges at scale.

What you'll do

• Build and maintain supplier crawlers and PunchOut integrations (OCI & cXML)

• Reverse engineer APIs and supplier websites to create reliable integrations

• Develop async Python services using modern networking and browser automation

• Extract and normalize product, pricing, and availability data

• Debug production issues and continuously improve crawler performance and reliability

What we're looking for

• 4+ years of professional Python experience

• Strong experience with web crawling, scraping, or API reverse engineering

• Solid knowledge of asyncio, httpx, HTTP, browser automation, and REST APIs

• Experience with HTML, JSON, XML, MongoDB, and Pydantic

• Excellent debugging skills and an ownership mindset

• English required; German is a plusProcurement, B2B e-commerce, or enterprise integrations

Why Join Us?

Work on one of Europe's fastest-growing AI startups. Solve engineering challenges most developers never encounter. Own critical infrastructure used by leading enterprise customers. Competitive compensation, meaningful equity, and exceptional teammates. Are you in?