Middle+/Senior Node.js Developer (with AI and Chatbots experience)

About the Role:

We’re looking for a skilled Middle+/Senior Node.js Developer with hands-on experience building AI-driven solutions and chatbots. You will work on backend architecture, integrate with modern LLM/AI providers, and build scalable microservices using NestJS and PostgreSQL.

This role suits a developer who enjoys designing clean backend systems, experimenting with AI-powered features, and working in a product-driven engineering environment.

🚀 Responsibilities:

• Develop and optimize AI-based features, including chatbot logic, NLP pipelines, and LLM API integrations.

• Design and manage relational database schemas using PostgreSQL.

• Implement REST and/or GraphQL APIs for internal and external use.

• Collaborate with product, AI engineers, and frontend developers to deliver end-to-end functionality.

• Take ownership over technical decisions, architecture, and code quality.

👉 What we offer:

📈Professional Growth opportunities:

• Ambitious goals and interesting projects;

• Regular & transparent performance review and feedback process;

•  Possibility for both vertical or horizontal growth (in case you want to try a different path).

🎁Benefits program

• 18 working days of fully paid vacation;

• Free tax reporting support by our Financial department;

• Help with individual entrepreneurs’ questions and accounting support;

• Financial support and additional days off for various occasions (e.g. marriage, childbirth, etc.);

•  Speaking Club to practice and improve English;

• Online sports activities to stay active and healthy.

😌Comfortable Working conditions

•  Flexible working hours;

• Provision of required equipment;

•  Remote working model.

Requirements

• 4+ years of experience with Node.js.

• Strong hands-on experience with NestJS.

• Solid knowledge of PostgreSQL, database design, and query optimisation.

• Practical experience integrating or developing AI-driven features (LLMs, NLP, embeddings, chatbot engines, or vector databases).

• Experience building or maintaining chatbots (custom logic or frameworks).

• Strong understanding of API development, microservices, and clean architecture principles.

• English B2+ - ability to collaborate in an international environment.

• Strong problem-solving mindset and ability to work autonomously.

• Good communication skills and readiness to collaborate with distributed teams.

Nice to Have:

• Familiarity with OpenAI, Anthropic, Gemini, or other LLM APIs.

• Knowledge of Redis, event-driven architecture, or message brokers (Kafka, RabbitMQ).

• Experience with cloud providers (AWS/Azure/GCP)