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# AI Engineer - Ruby on Rails

- **Company:** OnTheGoSystems
- **Location:** Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Amazon Web Services, Business Logic, Automation of Tests, Databases, Continuous Integration, Software Debugging, Software Maintenance, Ruby on Rails, Systems Integration, WordPress, Large Language Models, Backend, Api Design
- **Published:** June 12, 2026
- **Apply:** https://es.indeed.com/viewjob?jk=36adc545e34b6ba1

## About the Role

Do you have experience in WordPress?, Do you have a Master's degree?, To succeed in this role, you'll have:

 * Practical experience building with AI/LLM technologies, not just using AI tools casually
 * Strong Ruby on Rails experience, ideally at a senior level
 * Good judgment about when AI is useful and when simpler engineering is better
 * Strong backend skills, including databases, API design, performance, background jobs, and security
 * Ability to break down ambiguous problems into clear technical solutions

Nice to have

 * CI/CD, background jobs, or AWS experience
 * Experience with text-processing, localization, translation, or multilingual products

## Description

We are looking for an engineer with practical AI/LLM experience who can build production features in Ruby on Rails.

This role is for someone who has worked with AI tools, LLM APIs, prompts, retrieval/context patterns, or AI-assisted workflows - and who also has the engineering depth to turn those ideas into reliable, tested, maintainable software.

What you'll be working on:

 * Designing and building AI/LLM-assisted product features
 * Integrating LLM APIs into Ruby on Rails systems
 * Combining AI approaches with business logic, tests, fallbacks, and production safeguards
 * Owning features from technical design to production
 * Improving reliability, accuracy, consistency, latency, cost, security, and maintainability
 * Writing and maintaining automated tests, including unit, integration, and E2E tests
 * Debugging production issues and improving system behavior over time


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