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Node.js Developer (+ LangChain, LangGraph, RAG)

1 hour, 25 minutes ago
Ukraine
Full-time
Mid Level
Backend Engineer
Software Development
AWS Microservices MongoDB Node.js TypeScript
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Viseven

Viseven

Viseven specializes in providing advanced marketing technology solutions tailored for the life sciences and pharmaceutical industries, focusing on enhancing digital communication and marketing strategies to improve brand visibility and customer engagem...

Pharmaceuticals
251-1K
Founded 2009
View All Jobs 25

Description

  • Design and implement AI agent workflows using LangChain, LangGraph, and LangSmith.
  • Build AI-powered search and recommendation capabilities using RAG, vector databases, and different retrieval strategies.
  • Participate in code reviews, bug fixing, and refactoring.
  • Take part in task planning and estimation.
  • Write unit tests and end-to-end tests.
  • Self-test implemented changes in the target environment.
  • Apply object-oriented programming and design patterns in day-to-day development.
  • Document development stages to support future maintenance.
  • Stay up to date with modern GenAI application development practices and technologies.

Requirements

  • 4+ years of commercial backend development experience.
  • Strong knowledge of TypeScript and Node.js.
  • Deep knowledge of MongoDB and database design.
  • Practical experience with large language models, including prompt engineering, RAG implementation, and AI agent development.
  • Experience with AI tools and frameworks such as LangChain, LangGraph, and LangSmith.
  • Understanding of vector databases, embeddings, and semantic search.
  • Strong understanding of software design principles and patterns, as well as modern development practices.
  • English level of Pre-Intermediate or higher.
  • Experience with microservices architecture is a plus.
  • Experience using AWS is a plus.

Benefits

  • Competitive compensation with regular salary reviews.
  • Professional and career growth opportunities.
  • Paid vacation: 18 working days per year, increasing to 20 after 2 years.
  • Sick leave without documentation: 4 working days per year.
  • Documented sick leave: 20 working days per year.
  • Family leave: 3 paid working days for marriage, childbirth, or bereavement.
  • Comprehensive health insurance, including massage and physiotherapy.
  • English language courses.
  • Opportunities to attend professional forums and conferences.
  • Regular corporate events and team-building activities.
  • Friendly work environment with a comfortable fully equipped office and the option to work from home.

Interested in this position?

Apply directly on the company website

Apply Now

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