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William Balance

Berlin

Freelance AI full-stack developer for Berlin companies

Berlin, Europe’s deepest startup scene

Berlin runs a real AI ecosystem. N26 and Trade Republic in fintech, DeepL in machine translation, Helsing in defense AI, Parloa in conversational AI, Celonis (split between Munich and Berlin) in process mining, plus a long tail of seed and Series A startups in Mitte, Kreuzberg and Friedrichshain all fight for the same engineering talent. The Berlin Institute for AI, the Hasso Plattner Institute in Potsdam and active EU funding round it out.

The Berlin market is pragmatic and English-first. Product teams ship fast, iterate on feedback and expect freelancers to slot into existing sprints without friction.

Known companies and institutions

  • DeepL and Helsing for frontier product-grade AI built in Germany
  • N26, Trade Republic and the broader Berlin fintech cluster
  • Parloa, Celonis and a strong second wave of B2B AI SaaS scale-ups

Relevant use cases for Berlin

  • Copilots for fintech and neobank operations with strong compliance hooks
  • Agents for customer operations in high-growth B2B and B2C SaaS
  • Document intelligence and workflow automation for process-heavy German mittelstand clients
  • Internal AI assistants built on top of Notion, Linear, Slack and existing product data

Talking about a project

Berlin sits 7 to 8 hours behind Seoul, so your morning is my afternoon. Book a 30-minute intro on Cal.com or email directly.

Got a project?

30 free minutes to scope your need and figure out whether I am the right fit.

Nearby cities

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