Backend Engineer - AI Startup

Madiff; Polska; On-site; PLN 60,000 - 90,000; Full time

Job summary

A forward-thinking tech company in Poland is seeking a skilled Backend Engineer to design and implement the infrastructure that powers their groundbreaking AI systems. The role involves developing scalable backend systems, creating APIs for agent communication, and ensuring data security and compliance. The ideal candidate will have over 3 years of experience in backend development, expertise in cloud platforms, and a degree from a prestigious engineering school. A long-term B2B contract is offered with a strong pipeline of projects.

Qualifications

• 3+ years of experience in backend development.
• Strong knowledge of cloud platforms.
• Experience with API development and database design.

Responsibilities

• Design and build scalable backend systems for AI workflows.
• Develop APIs for agent communication.
• Implement the orchestrator for multiple AI agents.

Skills

Node.js

Python

Go

Cloud platforms (AWS, GCP, or Azure)

API development

Database design

Education

Degree from a top engineering school in Poland or Europe

Job description

We’re building a modular AI agent that will revolutionize an entire ecosystem. As our Backend Engineer, you’ll design and implement the infrastructure that powers our AI systems. You’ll work on APIs, orchestrators, and data pipelines to ensure seamless communication between agents and a reliable user experience.

Responsibilities

• Design and build scalable backend systems to support AI workflows.
• Develop APIs for agent communication and third-party integrations.
• Implement the orchestrator that coordinates multiple AI agents.
• Ensure data security, compliance, and system reliability.
• Collaborate with the AI/ML and frontend teams to deliver a cohesive product.

Requirements

• 3+ years of experience in backend development (e.g., Node.js, Python, Go).
• Strong knowledge of cloud platforms (AWS, GCP, or Azure).
• Experience with API development and database design.
• Familiarity with AI/ML integration is a plus.
• Top engineering school from Poland or Europe.
• Work in multilingual, multinational and multicultural environment on international projects.
• Long-term B2B contract with stable project pipeline.