Senior Ruby on Rails Developer
O
OnTheGoSystemsSoftware Development
Work from anywhere within EMEA hours, EMEA hoursFull-TimeSenior
Salary not disclosed
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Job Details
- Required Skills
- AWSRuby on RailsCI/CD
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 versus simpler engineering approaches
- Strong testing habits and care for long-term code quality
- A responsible, curious, flexible mindset
Responsibilities
- Owning features from technical design to production
- Building and maintaining Ruby on Rails systems used at scale
- Designing AI/LLM-assisted features and workflows
- Working with LLM APIs, prompts, and retrieval/context strategies
- Making trade-offs around performance, reliability, cost, latency, security, and maintainability
- Writing and maintaining automated tests including unit, integration, and E2E
- Debugging production issues and improving system reliability
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