This is a remote position.

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