Remote Back-End Engineer for AI Infrastructure

Alignerr Corp.; Buenos Aires; Remote; ARS 83,775,000 - 178,022,000; Part time

Job summary

Alignerr Corp. is seeking Back End Developers in Buenos Aires for a fully remote, flexible hourly contract. You will design, build, and optimize the server-side systems and APIs that power AI‑driven products — from data pipelines and model‑serving infrastructure 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

Qualifications

• Back end proficiency with one or more listed languages.
• Strong knowledge of RESTful APIs and distributed systems.
• Experience with relational and/or NoSQL databases.
• Familiar with cloud platforms and containerization.

Responsibilities

• Design, develop, and maintain back end services, APIs, and data pipelines.
• Build scalable server-side architecture for AI workloads.
• Write clean, tested code following best practices.
• Integrate with databases, queues, cloud services, and 3rd-party APIs.
• Optimize performance, reliability, and scalability as usage grows.
• Collaborate asynchronously with distributed teams.
• Troubleshoot production issues, review code, contribute to architecture.
• Work independently on task-based and project-based assignments.

Skills

Backend languages: Python

Go

Java

Node.js

Rust

RESTful API design

Distributed systems

Tools

PostgreSQL

MongoDB

Redis

AWS

GCP

Azure

Git

CI/CD

Docker

Kubernetes

Job description

Alignerr Corp. is seeking Back End Developers in Buenos Aires for a fully remote, flexible hourly contract. You will design, build, and optimize the server-side systems and APIs that power AI‑driven products — from data pipelines and model‑serving infrastructure 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