Senior Backend (NodeJS) Engineer - AI Automation

About the role

MEDvidi is an AI-powered mental healthcare clinic combining licensed providers with proprietary AI tools to treat conditions such as ADHD, anxiety and depression. It is looking for a Senior Backend (NodeJS) Engineer to join its AI Automation team and lead the development of AI-driven integrations within its telemedicine platform. The engineer designs and scales the backend systems connecting the core product with AI services, working closely with AI engineers, product teams and other stakeholders.

Key responsibilities

• Design and build backend architecture for AI-powered automation systems, focusing on performance, scalability and resilience.
• Integrate and scale LLM-based product features with AI engineers and product teams.
• Implement and evolve agent-based systems (e.g., ReAct, supervisor-agent models).
• Optimize RAG pipelines and context enrichment using structured and unstructured data.
• Develop robust APIs for internal services and external integrations.
• Ensure observability, monitoring and alerting with tools such as Grafana and OpenSearch.
• Participate in code reviews, architecture discussions and maintain technical documentation.

Required profile

• 8+ years of commercial backend development with Node.js in product companies (preferably SaaS).
• Proven track record of scalable, high-performance backend systems and robust APIs.
• Hands-on experience integrating LLMs into production systems and building multi-agent AI workflows.
• Fluent Russian; English B2+.
• A plus: experience with medical/healthcare AI or regulated environments, and with MCP in Node.js.

Required skills

• PostgreSQL (schema design, migrations, performance optimization) and AWS (CDK, Lambda, API Gateway, ElastiCache)
• RAG pipelines: embeddings, vector databases, retrieval strategies, ranking, chunking
• Prompt engineering with structured outputs (JSON/YAML) and evaluation-based iteration
• Observability tools such as Grafana, OpenSearch, LangSmith or Langfuse
• Testing, CI/CD and a product-oriented mindset

What we offer

• Fully remote long-term collaboration under a B2B model
• Health insurance after the probation period, plus sports and wellness compensation
• Personalized English lessons via Preply and clear growth paths
• 19 paid vacation days annually, 4 additional wellness days each year and paid sick leave for the first 5 working days
• Gifts for key life events and offline corporate events