Senior AI NodeJS Engineer

Senior AI NodeJS Engineer

Tooploox

Warsaw, Wrocław or Remote, Poland

What you will do:

• Collaborate with cross-functional teams to design and build AI Agentic solutions;
• Contribute to defining technical requirements and implementing features across the software lifecycle - from proof of concept through implementation to evaluation and production;
• Take ownership of assigned tasks and deliver high-quality, maintainable code;
• Manage backend tasks while contributing to frontend development;
• Stay informed about trends and advancements in AI and related fields, continuously learning and integrating new knowledge;
• Employ a pragmatic, evaluation-driven approach to adopting innovative AI solutions.

Experience and skills you need to join us:

• Experience in full-stack development using mainly NodeJS (with TypeScript);
• At least 1 year of experience in AI Engineering role;
• Versatile in technology use, comfortable working across backend and frontend tasks;
• Track record in staying current with AI and Agentic technologies, including best practices and architecture;
• Openness to client collaboration, fostering clear communication and effective partnership;
• Strong commitment to learning new technologies and swiftly adapting to new products and APIs;
• Understanding of Retrieval-Augmented Generation (RAG) and its applications;
• Familiarity with Multi-Agents concept, tools usage and MCP Servers;
• Hands-on experience with LLM APIs/SDKs (e.g., OpenAI, Anthropic);
• Knowledge of LLM orchestration and frameworks like Langchain or LlamaIndex, with practical implementation experience;
• Understanding of prompt design principles and an ability to create effective prompts;
• Experience configuring services on cloud platforms (e.g. AWS, Azure, GCP);
• Basic experience with CI/CD pipelines and DevOps best practices;
• Competence in REST API usage and efficient database integration;
• Fluency in English language.

It would be great if you also have:

• Basic knowledge of machine learning principles;
• Understanding Python source code;
• Experience with React;
• Experience with model fine-tuning and distillation;
• Familiarity with LLM evaluation;
• Experience with Model Context Protocol (MCP);
• Experience with graph databases;
• Familiarity with other programming languages and frameworks;
• Familiarity with Voice Agents concepts and related frameworks e.g. Pipecat