Strong Middle AI Integration Engineer Short-term project with real impact
We’re looking for a Strong Middle AI Integration Engineer to join a 3–4 month project focused on delivering production-ready AI features for a modern web product.
This role is ideal for an engineer who can turn LLM capabilities into stable backend systems, structured workflows, and real product functionality — not just prototypes.
You’ll work on AI agents, tool calling, prompt orchestration, structured outputs, streaming, and AI integrations, with a strong focus on reliability, scalability, and clean implementation. Requirements * Commercial experience with LLMs (OpenAI, Gemini, Claude) * Strong prompt engineering and prompt structuring skills * Experience building AI agents (LangChain / LangGraph or similar) * Hands-on experience with tool calling / function calling * Experience designing structured outputs (JSON Schema, Zod, validation layers) * Strong understanding of context management, token optimization, and cost control * Experience with streaming AI responses (SSE / token streaming) * Solid backend experience with Node.js, NestJS, TypeScript * Experience integrating external APIs and AI services * Understanding of latency optimization, fault tolerance, and rate limiting * Experience with concurrent / parallel processing * Experience with RAG, embeddings, and vector databases * Strong understanding of clean architecture and SOLID * Good ownership and ability to work independently
Will be a plus * Experience with CI/CD * Experience building AI chat or Copilot-style interfaces * Familiarity with CopilotKit / AG-UI * Experience with fine-tuning * Understanding of microservices or event-driven systems * Experience with real-time or high-load systems
Responsibilities * Build and maintain AI-powered product features * Develop AI agents and orchestration flows * Implement tool calling pipelines and AI integrations * Design prompt pipelines and structured output flows * Optimize latency, cost, and reliability * Implement streaming and real-time AI interactions * Ensure system stability via fallbacks, retries, and error handling * Participate in code reviews and technical discussions * Take ownership of features from idea to production
Why this role * Short-term, high-impact project * Opportunity to work on real AI product functionality * Fast delivery cycle and visible results * Strong engineering ownership and technical depth
