Senior AI Node.js Developer (Fastify)

AI/ML

Flory 9, Warszawa+4 Locations

1dea

170 - 185PLN

Net per hour - B2B

Full-time

B2B

Senior

Remote

Tech stack

Polish

C2

English

B2

Node.js

advanced

AI

advanced

SQL

advanced

Fastify

regular

Jest

regular

Docker

regular

Job description

Are you a seasoned Node.js developer with a passion for artificial intelligence? We're looking for a skilled professional to join our team and help us build cutting-edge applications that leverage the power of AI.

Organizational Details:

• Industry: IT Consulting

• Openings: 2

• Location: 100% remote work

• Start Date: ASAP (maximum 2-month notice period)

• Salary: 170 - 185 PLN net + VAT / hour (to be negotiated)

• Engagement Terms: B2B (outsourcing via 1dea), full-time, long-term

Our fully remote recruitment process is designed to be straightforward and efficient:

1. Initial Phone Call: A brief conversation (~10 minutes) with a 1dea recruiter to discuss the project and terms of engagement.

2. Client Introduction: We present your profile to our client.

3. Technical & Project Interview: A video call with the client's team to discuss your technical skills and project experience (~1-1.5 hours).

4. (Optional) Final Discussion: A brief follow-up (~30 minutes) with a Technical Manager from our client's side.

5. Decision: We make a final decision and extend an offer of cooperation.

Scope of duties:

• Developing robust and scalable backend services using Node.js and TypeScript

• Integrating AI and machine learning models into our applications (e.g., using TensorFlow.js)

• Writing comprehensive unit and integration tests to ensure code quality and reliability

• Collaborating with the team to design and implement new features

• Working with Docker and cloud platforms like AWS or Azure to deploy and manage our services

Needs:

• A minimum of 4 years of experience with Node.js and TypeScript

• Hands-on experience with the Fastify framework

• Proven expertise in integrating AI/ML models

• Proficiency with Docker and at least one major cloud provider (AWS or Azure)

• Strong knowledge of SQL databases, specifically PostgreSQL

• Experience writing unit and integration tests with frameworks like Jest

• Solid understanding of Git for version control

• English at B2+ level (spoken and written)

Bonus points if you have:

• Experience with Python in an AI context.

• Knowledge of Kubernetes and message queueing systems (RabbitMQ, Kafka).

• Familiarity with microservices architecture.

Offer:

• Long-Term Contract: We are looking for a long-term partnership. You will be offered an indefinite B2B contract from the start, as our client is focused exclusively on long-term collaboration

• Join a Strong Company: Become a part of a company with a solid market position

• Modern Equipment: Our client provides all the necessary hardware and software you need to do your best work

• Flexible Working Hours: Enjoy the freedom to manage your own time effectively

• 100% Remote Work: This position is fully remote

• Collaborative Culture: We value teamwork, openness, and mutual respect. Creativity is highly encouraged, and your ideas and suggestions will be valued throughout the project

Published: 09.08.2025

Office location