Tooploox | Senior AI NodeJS Engineer

Hi there!

We’re Tooploox 💎, a Solvd Inc. company

We create AI-powered products and services that make a real difference. Our team of nearly 200 specialists - including a 40+ person R&D team with many PhDs - has pioneered AI solutions across industries from healthcare to e-commerce. We’ve published research in top-tier venues like NeurIPS and ICML, while delivering real-world applications that help our clients innovate and scale.

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

How we work:

At Tooploox 💎, you have the flexibility to choose your working hours ⏰ and location 📍. While we value remote work, we also believe in building relationships 🤝and invite you to join us in our Warsaw and Wrocław offices 🏢. Enjoy a relaxed atmosphere 🍃 and try some “home-made” pizza 🍕 from our office pizza oven. We love having pets 🐶 in the office, so feel free to bring yours along.😁

Join us and shape the future of AI while working the way you like!