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AI Engineer

Madiff

Role overview

Qualifications

  • Minimum 4 years of software development experience (Node.js preferred)
  • At least 2 years of experience working with AI/LLM applications
  • Hands-on experience with LangChain, LangGraph, or similar frameworks
  • Solid knowledge of vector databases and retrieval-augmented generation pipelines

Responsibilities

  • Architect and implement backend services for AI-powered systems and tools
  • Build intelligent agents and automation workflows using LangGraph or LangChain
  • Connect and operate Vector Databases (e.g., Pinecone, Weaviate, Chroma)
  • Lead and maintain Node.js-based backend architectures

Key facts

Hard skills

About the company

Madiff logo

Madiff

Artificial Intelligence & Machine Learning Services

We are an international Innovation, IT and high-tech engineering consulting company that delivers unique value in a wide variety of industries. Our mission is to add value to our customers businesses by providing digital and technological innovation services, delivering disruptive results and making our clients stand out in their market. We are driven by a creative and innovative consulting approach strongly oriented to getting results. We MAKE THE DIFFERENCE. Poland | UK | Switzerland | USA | Norway | Portugal | Spain | France | Singapore Warsaw Prosta 20 Wrocław Rybacka 7 Lublin Grottgera 2

Company details

IndustryArtificial Intelligence & Machine Learning Services
Company size51 - 200

Links

Website LinkedIn See all jobs

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Job description

This is a remote position.

We are seeking a Senior AI Engineer with a strong background in Node.js and hands-on experience integrating AI and LLM-based solutions into scalable backend architectures. This is not a traditional data scientist role — we’re looking for an experienced software engineer who understands both backend system design and how to leverage modern AI tools such as LangGraph, LangChain, and Vector Databases.

Key Responsibilities

  • Architect and implement backend services for AI-powered systems and tools

  • Build intelligent agents and automation workflows using LangGraph or LangChain

  • Connect and operate Vector Databases (e.g., Pinecone, Weaviate, Chroma)

  • Lead and maintain Node.js-based backend architectures

  • Design and optimize prompt workflows for AI integration

  • Integrate external APIs and third-party AI services (OpenAI, Anthropic, etc.)

  • Collaborate with frontend developers and product stakeholders to deliver seamless solutions



Requirements

  • Minimum 4 years of software development experience (Node.js preferred)

  • At least 2 years of experience working with AI/LLM applications

  • Hands-on experience with LangChain, LangGraph, or similar frameworks

  • Solid knowledge of vector databases and retrieval-augmented generation pipelines

  • Strong background in API design, prompt engineering, and deployment best practices

  • Proficiency in both Node.js and Python

  • Fluent in Polish and English (C1 level)

Nice to Have

  • Experience building AI co-pilots, chatbots, or conversational AI tools

  • Working knowledge of React or Next.js for integrating backend and UI

  • Familiarity with LLM providers such as OpenAI, Anthropic, or Gemini



Benefits

  • Solid, competitive salary.
  • Work in multilingual, multinational and multicultural environment on international projects
  • Medical care

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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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