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.

Now, as part of Solvd Inc., we’re building on our strengths with even greater global reach and resources - while keeping the creative, human-scale culture that defines us here in Poland. If you want to work on meaningful AI projects, with space to grow and the freedom to innovate, you’ll feel right at home.

We are seeking a dynamic and motivated Senior AI NodeJS Engineer with a strong focus on developing AI Agents. If you have an understanding of AI technologies and thrive on applying diverse tech stacks to build innovative solutions, we want to hear from you. This role involves not only technical expertise but also collaboration with clients to understand and refine project requirements.

Feel invited!

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

• Fluency in Polish (nice to have)

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!