Remote Backend Engineer, AI Infrastructure (Contract)

Alignerr Corp.; Lublin; Remote; PLN 83,000 - 138,000; Full time

Job summary

Alignerr is seeking Back End Developers in Lublin and across Poland to design, build, and optimize server-side systems and APIs powering AI products — from data pipelines and model-serving infra to scalable microservices that handle real-world traffic at scale. This is a fully remote, flexible contract role.

Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things

Qualifications

• Backend experience with one or more major languages (Python/Go/Java/Node.js/Rust).
• Strong knowledge of RESTful APIs and microservices.
• Experience with relational and NoSQL databases and cloud platforms.
• Proficient in containerization, CI/CD, and version control.

Responsibilities

• Design, develop, and maintain robust backend services and data pipelines.
• Build scalable server-side architecture to support AI workloads.
• Write clean, tested code following best practices.
• Integrate with databases, queues, cloud services, and third-party APIs.
• Collaborate asynchronously with distributed teams and conduct code reviews.
• Troubleshoot production issues and participate in architectural decisions.
• Work independently on task-based and project-based assignments.

Skills

Python

Go

Java

Node.js

Rust

RESTful API

Microservices

PostgreSQL

MongoDB

Redis

AWS/GCP/Azure

Docker

Kubernetes

Git

CI/CD

Tools

Docker

Kubernetes

Git

CI/CD

Job description

Alignerr is seeking Back End Developers in Lublin and across Poland to design, build, and optimize server-side systems and APIs powering AI products — from data pipelines and model-serving infra to scalable microservices that handle real-world traffic at scale. This is a fully remote, flexible contract role.

Whether you're a seasoned engineer looking for meaningful project work or a strong developer ready to apply your skills to AI-adjacent infrastructure, this is your chance to build things