**AI Engineer (Middle+) **

📍at a product IT company

Location and format: remote within Russia, CIS Format: full-time employment Salary: 300,000 - 400,000 RUB/month

Your main task is to build a reliable and secure layer of services that ensures the operation of AI functions within the platform: from text processing to large-scale data analytics.

Responsibilities:

• RAG and search: configure and optimize hybrid search across knowledge bases (semantics + keywords), work with chunking strategies, ranking, and testing response quality
• Data security: implement anonymization tools (PII/NER) before sending data to external LLM providers, build AI action audit
• Dialogue analytics: automatic tagging, dialogue quality assessment, report generation based on client data
• Integrations: build secure interfaces between AI components and external databases, CRMs, and providers (OpenAI, YandexGPT, GigaChat)
• Data work: implement solutions for analyzing text and voice communications (transcription, tagging, classification)
• Optimization: monitor token costs, latency, and participate in the development of AI infrastructure

Who we are looking for:

• Strong backend development experience (3–5+ years)
• Deep understanding of modern LLM systems architecture — RAG, vector databases, orchestration
• Understand the difference between a prototype in a chat and a fault-tolerant production solution
• Ability to independently implement logic within an existing backend

Tech Stack: TypeScript, Node.js, NATS, Weaviate (vector DB), Langfuse (tracing and Evals), PostHog

Will be a plus:

• Experience with transcription and voice data
• Experience deploying OSS models within the client's environment