Senior AI/LLM Engineer (Ruby on Rails)

OnTheGoSystems • Emea
Remote
Apply
AI Summary

Design and build AI/LLM-assisted product features, integrate LLM APIs into Ruby on Rails systems, and own features from technical design to production.

Key Highlights
Design and build AI/LLM-assisted product features
Integrate LLM APIs into Ruby on Rails systems
Own features from technical design to production
Key Responsibilities
Designing and building AI/LLM-assisted product features
Integrating LLM APIs into Ruby on Rails systems
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
Technical Skills Required
Ruby on Rails AI/LLM Ruby
Benefits & Perks
Fair compensation
Great benefits
Fully remote work

Job 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


What we’re looking for:


  • 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


Why Join OTGS?


  • Stable & self-funded: Founded in 2007, profitable, and independent.
  • Industry leaders: Creators of WPML, the #1 multilingual plugin for WordPress, used on 1.5M+ sites
  • Fully remote, async-friendly: Work from anywhere within EMEA hours
  • Engineering-driven culture: Ownership, autonomy, testing, and thoughtful problem-solving
  • Fair compensation and great benefits: Designed to support your well-being both inside and outside of work.


Want to make a lasting impact on a product used by thousands of real customers? We would love to hear from you.


Similar Jobs

Explore other opportunities that match your interests

Frontend Developer (Vue.js) - Contract

Programming
•
1d ago
Visa Sponsorship Relocation Remote
Job Type Contract
Experience Level Not Applicable

hire feed

Emea
Visa Sponsorship Relocation Remote
Job Type Contract
Experience Level Entry level

micro1

Emea

Principal Performance Engineer

Programming
•
5d ago
Visa Sponsorship Relocation Remote
Job Type Full-time
Experience Level Mid-Senior level

EDB

Emea

Subscribe our newsletter

New Things Will Always Update Regularly