Senior Backend Engineer (Node.js, AI Applications)

We are looking for a strong Middle Backend Engineer to help us build AI-powered products and workflows. This role is ideal for someone with solid Node.js / TypeScript experience who is already exploring AI in practice and wants to go deeper into RAG, voice agents, and multi-agent systems. What matters most is a strong backend foundation, the ability to build reliable production systems, and a genuine interest in how LLM-based applications work and in using AI to speed up delivery.

What you’ll do Design and build backend services for AI-powered product features Work with LLM APIs, prompts, AI SDKs, and agent workflows Help shape systems involving retrieval, grounding, tool use, and orchestration Collaborate on products that include Node.js backend Improve reliability, latency, observability, and overall production readiness of AI features Explore and implement capabilities around RAG, voice experiences, and multi-agent systems

What we’re looking for Strong commercial experience with Node.js / TypeScript, 2+ years of experience Experience building and maintaining complex backend systems in production Solid understanding of architecture, APIs, async flows, integrations, and system reliability Some hands-on exposure to LLM applications: prompt design, AI APIs, agent flows, or internal AI tooling Ability to learn quickly in a fast-moving technical area Strong engineering judgment and product mindset A degree in Computer Science, Mathematics, or a related field is a plus, but not required

Nice to have Experience with LangChain, LangGraph, Vercel AI SDK, or similar frameworks Familiarity with RAG concepts such as chunking, embeddings, retrieval, reranking, and hallucination reduction Experience with voice agents or real-time AI experiences Experience with React Familiarity with Python

Why this role You’ll work on real AI product problems, not toy demos You’ll have room to grow into RAG and agentic systems We’re open to hiring a strong engineer with the right mindset, even if some of the AI-specific depth is still developing