Senior Ruby on Rails Developer (LLM)
New
O
OnTheGoSystemsSoftware Development
Italy. Greece. Malta, EMEA hoursFull-TimeSenior
Salary not disclosed
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Job Details
- Required Skills
- AWSBackend DevelopmentArtificial IntelligenceRuby on RailsReactCI/CDLLM
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 regarding AI usage versus simpler engineering approaches
- Strong testing habits and care for long-term code quality
- Responsible, curious, and flexible mindset to own outcomes
- Experience with React (nice to have)
- CI/CD, background jobs, or AWS experience (nice to have)
- Experience building AI-powered product features in production (nice to have)
- Familiarity with embeddings, vector search, RAG, evals, or LLM observability (nice to have)
Responsibilities
- Own features from technical design to production
- Build and maintain Ruby on Rails systems used at scale
- Design AI/LLM-assisted features and workflows to improve product quality or user experience
- Work with LLM APIs, prompts, retrieval/context strategies, and AI-assisted development tools
- Make trade-offs regarding performance, reliability, cost, latency, security, and maintainability
- Write and maintain automated unit, integration, and E2E tests
- Debug production issues and improve system reliability
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