O
AI Engineer - Ruby on Rails
Contract type
Ongoing
Work mode
Remote · EMEA
Experience
3 years
Job description
An engineering role at OnTheGoSystems building production AI/LLM-assisted features in Ruby on Rails, from technical design through to production. The role focuses on integrating LLM APIs into Rails systems with tests, fallbacks, and production safeguards.
At a glance
- Work mode
- Remote · EMEA
What you'll do
- 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
Nice to have
- CI/CD, background jobs, or AWS experience
- Experience with text-processing, localization, translation, or multilingual products
Benefits
- 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
Apply
About OnTheGoSystems
Key facts
- 2007
- Founded in 2007, profitable, and independent
- Creators of WPML, the #1 multilingual plugin for WordPress, used on 1.5M+ sites
What they value
- Ownership
- Autonomy
- Testing
- Thoughtful problem-solving