Job description
This is a remote position.
We are seeking aSenior AI Engineerwith a strong background inNode.jsand hands-on experience integratingAI and LLM-based solutionsinto scalable backend architectures. This is not a traditional data scientist role — we’re looking for an experienced software engineer who understands bothbackend system designand how to leverage modernAI toolssuch asLangGraph,LangChain, andVector Databases.
Key Responsibilities
Architect and implement backend services forAI-powered systems and tools
Build intelligent agents and automation workflows usingLangGraphorLangChain
Connect and operateVector Databases(e.g., Pinecone, Weaviate, Chroma)
Lead and maintainNode.js-based backend architectures
Design and optimizeprompt workflowsfor 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 buildingAI co-pilots, chatbots, orconversational AI tools
Working knowledge ofReactorNext.jsfor 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
Originally posted on Himalayas
Who can apply
Eligible countries: United States. Accepted UTC offsets: UTC-10, UTC-9, UTC-8, UTC-7, UTC-6, UTC-5, UTC+14. Review the full description for employer-specific work authorization, residency and schedule requirements.