AI Engineer - Ruby on Rails

🏢 OnTheGoSystems · all OnTheGoSystems jobs
📍 Romania
📅 Posted 2026-07-19 · via Himalayas
🏷 AI-Engineering,Ruby-on-Rails-Development,Backend-Engineering,LLM-Integrations,Fullstack-Development,Senior-Ruby-On-Rails-Engineer,AI-Engineer,Artificial-Intelligence-Engineer
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AI Engineer - Ruby on Rails

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:
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

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.

Originally posted on Himalayas

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