Remote Backend Engineer for AI Infrastructure

Alignerr Corp.; Poznań; Remote; PLN 165,000 - 248,000; Full time

Benefits offered by this job

Fully remote

Flexible hours

Freelance project work

International team

Job summary

Alignerr is seeking Back End Developers in Poznań for a fully remote hourly contract. You will design, build, and optimize server-side systems and APIs supporting AI products, data pipelines, and scalable microservices for real-world traffic.

Join an asynchronous, distributed team; contribute to data pipelines, model-serving infra, and high-performance back end architectures while working on flexible, contract-based projects.

Qualifications

• Proficient in one or more back end languages (Python, Go, Java, Node.js, Rust).
• Strong knowledge of RESTful API design, microservices, and distributed systems.
• Experience with relational and/or NoSQL databases (PostgreSQL, MongoDB, Redis, etc.).
• Comfortable with cloud platforms such as AWS, GCP, or Azure.
• Familiar with version control (Git), CI/CD pipelines, and containerization (Docker, Kubernetes).

Responsibilities

• Design, develop, and maintain robust back end services, APIs, and data pipelines.
• Build scalable, high-performance server-side architecture to support AI training and inference workloads.
• Write clean, well-documented, and testable code following engineering best practices.
• Integrate with databases, message queues, cloud services, and third-party APIs.
• Optimize system performance, reliability, and scalability as usage grows.
• Collaborate asynchronously with distributed teams of engineers, researchers, and product leads.
• Troubleshoot production issues, conduct code reviews, and contribute to architectural decisions.
• Work independently on task-based and project-based assignments on your own schedule.

Skills

Python

Go

Java

Node.js

Rust

Tools

Docker

Kubernetes

Git

PostgreSQL

MongoDB

Redis

Job description

Alignerr is seeking Back End Developers in Poznań for a fully remote hourly contract. You will design, build, and optimize server-side systems and APIs supporting AI products, data pipelines, and scalable microservices for real-world traffic.

Join an asynchronous, distributed team; contribute to data pipelines, model-serving infra, and high-performance back end architectures while working on flexible, contract-based projects.