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Senior AI Scientist (Agentic AI)

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Location:
Germany , Berlin

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Category:
IT - Software Development

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Contract Type:
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Salary:

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Job Description:

We are on a lookout for a hands-on Senior AI Scientist (Agentic AI) to join the Vendor Data Team on our journey to always deliver amazing experiences to go beyond prompt engineering into autonomous orchestration: designing agents that generate their own prompts, tools that empower AI with real-world actions, and judge models that validate outputs. Your work won't sit in research notebooks — it'll ship.

Job Responsibility:

  • Architect and deploy agent-based systems using LangGraph, PydanticAI, LangChain, Google ADK, Claude SDK, or custom-built orchestration frameworks
  • Build and optimize RAG pipelines
  • Design self-evolving prompt systems and dynamic decision flows driven by LLMs
  • Develop APIs and services that let models talk to tools, data, and other systems
  • Monitor, evaluate, and automate model feedback loops using AI-based simulation and testing agents
  • Work cross-functionally with product and engineering teams to ship AI-native features

Requirements:

  • 2+ years of experience in applied AI/ML engineering with real-world deployments
  • Strong Python skills and experience with frameworks like LangChain, LlamaIndex, or Haystack
  • Deep knowledge of RAG, LLM mechanics, prompt design, and chaining
  • Experience with vector databases (Pinecone, Weaviate, FAISS) and embedding models
  • You take ownership
  • You move fast but don't cut corners
  • You believe working code beats perfect plans

Nice to have:

  • Open-source model experience (e.g., LLaMA2, Mixtral, Mistral) or custom inference stacks
  • Judge models, feedback loops, or human-in-the-loop architecture
  • Experience designing test harnesses using agent personas or synthetic users
  • Familiarity with prompt injection mitigation, output validation, or agent safety
  • Background in shipping AI inside real-world web or mobile products
What we offer:
  • Hybrid working model with 2 days per week in Berlin campus
  • 27 days holiday with an extra day on 2nd and 3rd year of service
  • 1.000 € Educational Budget
  • Language Courses
  • Parental Support
  • Access to Udemy Business platform
  • Health Checkups
  • Meditation
  • Gym & Bicycle Subsidy
  • Employee Share Purchase Plan
  • Sabbatical Bank
  • Public Transportation Ticket Discount
  • Life & Accident Insurance
  • Corporate Pension Plan
  • Digital Meal Vouchers
  • Food Vouchers
  • Corporate Discounts

Additional Information:

Job Posted:
April 25, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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