Senior Full-Stack Engineer (AI & Distributed Systems)

About the role

We are looking for a senior full‑stack engineer to design and deliver end‑to‑end AI‑driven features. You will build intelligent agents on the backend and create intuitive user interfaces, working with a completely new, bleeding‑edge stack.

Key responsibilities

• Develop and maintain backend services using Node.js (NestJS) and Python (FastAPI) with asynchronous programming.
• Integrate large language model APIs (OpenAI, Anthropic, Google) handling streaming, rate limits, retries and token economics.
• Design, query‑optimise and troubleshoot PostgreSQL databases; work with ClickHouse, Qdrant and Kafka for data processing and event streaming.
• Implement observability solutions including logging, metrics, distributed tracing and monitoring dashboards.
• Write comprehensive unit and integration tests using Jest, Supertest and PyTest.
• Collaborate with frontend teams building Vue 3 and React applications in TypeScript.

Required profile

• Several years of professional experience building production‑grade backend systems.
• Deep expertise in Node.js and/or Python, RESTful APIs and microservice architectures.
• Hands‑on experience with LLM integration and vector‑search pipelines.
• Strong knowledge of PostgreSQL performance tuning and relational schema design.
• Proficiency with observability tools and automated testing frameworks.

Required skills

• Node.js, NestJS
• Python, FastAPI
• Vue 3, React, TypeScript
• OpenAI API, Anthropic API, Google AI services
• PostgreSQL, ClickHouse, Qdrant, Kafka, Redis, S3/MinIO
• Jest, Supertest, PyTest