Senior Ruby on Rails Engineer

### Senior Ruby on Rails Engineer We are looking for a Senior Ruby on Rails Engineer to help us build reliable, scalable products and apply AI/LLM technologies where they create real value. This is a hands-on engineering role for someone who can own complex features end to end, make strong technical decisions, and work across backend architecture, production systems, testing, and AI-assisted product development. You should be excited about AI, but pragmatic enough to know when a simple, deterministic solution is better than an LLM call. * * * ### What you’ll be working on: * Owning features from technical design to production * Building and maintaining Ruby on Rails systems used at scale * Designing AI/LLM-assisted features and workflows where they improve product quality or user experience * Working with LLM APIs, prompts, retrieval/context strategies, and AI-assisted development tools * Making trade-offs around performance, reliability, cost, latency, security, and maintainability * Writing and maintaining automated tests, including unit, integration, and E2E tests * Debugging production issues and improving system reliability * * * ### What we’re looking for: ### To succeed in this role, you’ll have: * Strong professional experience with Ruby on Rails, ideally at senior level * Experience building and running production systems used by real customers * Strong backend skills, including databases, API design, performance, background jobs, and security; * Ability to break down ambiguous problems and propose practical technical solutions * Hands-on interest or experience with AI/LLM technologies, * Good judgment about when to use AI and when simpler engineering approaches are better * Strong testing habits and care for long-term code quality * A responsible, curious, flexible mindset: willing to debug, deploy, investigate, learn, and own outcomes ### Nice to have: * Experience with React * CI/CD, background jobs, or AWS experience * Experience building AI-powered product features in production * Familiarity with embeddings, vector search, RAG, evals, or LLM observability * 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](https://himalayas.app)