Senior Ruby on Rails Developer (LLM)

We are looking for a senior Ruby on Rails developer 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