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Senior Ruby on Rails Developer

1 hour, 43 minutes ago
Slovenia, Europe, Middle East, Africa, Croatia, Czech Republic, Hungary
Full-time
Senior
AI Engineer
Software Development
AWS CI/CD LLM React Ruby Ruby on Rails WordPress
Apply Now
OnTheGoSystems

OnTheGoSystems

OnTheGoSystems is a remote team of tech enthusiasts, innovators, creatives, and engineers dedicated to building cutting-edge translation tools that empower businesses of all sizes to expand globally. Their flagship product, WPML (WordPress Multilingual...

Internet Software & Services
51-250
Founded 2007
View All Jobs 9

Description

  • Own features from technical design through production delivery.
  • Build and maintain Ruby on Rails systems used at scale.
  • Design AI/LLM-assisted features and workflows that improve product quality or user experience.
  • Work with LLM APIs, prompts, retrieval and context strategies, and AI-assisted development tools.
  • Make technical trade-offs across performance, reliability, cost, latency, security, and maintainability.
  • Write and maintain automated unit, integration, and end-to-end tests.
  • Debug production issues and improve system reliability.
  • Collaborate on practical technical solutions for ambiguous problems.
  • Support backend architecture and production systems.
  • Investigate, deploy, learn, and own outcomes as part of day-to-day engineering work.

Requirements

  • 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, and flexible mindset with willingness to debug, deploy, investigate, learn, and own outcomes.
  • Preferred experience with React.
  • Preferred experience with CI/CD, background jobs, or AWS.
  • Preferred experience building AI-powered product features in production.
  • Familiarity with embeddings, vector search, RAG, evals, or LLM observability is a plus.
  • Experience with text-processing, localization, translation, or multilingual products is preferred.

Benefits

  • Stable, self-funded company founded in 2007.
  • Profitability and independence as an established business.
  • Work on WPML, the #1 multilingual plugin for WordPress, used on 1.5M+ sites.
  • Fully remote, async-friendly work environment.
  • Ability to work from anywhere within EMEA hours.
  • Engineering-driven culture with ownership and autonomy.
  • Thoughtful problem-solving and testing-oriented team environment.
  • Fair compensation and benefits designed to support well-being inside and outside of work.

Interested in this position?

Apply directly on the company website

Apply Now

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