Rails Developer (AI-Powered Training Platform)

📍Remote

💼Part-time (with potential for full-time)

Join an athlete development platform dedicated to assisting coaches in building smarter training plans. We're seeking a skilled Rails Developer to expand our AI system from creating simple workouts into a comprehensive framework that can support coaches in developing full training programs.

Responsibilities

•Extend our AI system to create workouts, blocks, and full programs
•Add file upload processing for Excel and PDFs, leading to AI-generated structured training plans
•Design reusable AI operator patterns and JSON schema definitions
•Develop coach-facing interfaces for reviewing AI-generated insights
•Integrate with OpenAI and other LLM APIs to ensure scalable and reliable workflows

Requirements

•4+ years of professional Rails development experience
•Strong ActiveRecord, background jobs, and multi-tenancy expertise
•Has shipped AI features to production apps (LLM APIs, structured JSON)
•Experience with async processing and error handling
•Builder mindset: works independently, ships quickly, and balances pragmatism with quality

Nice to Have

•Experience with PDF/Excel parsing libraries
•Familiarity with LangChain or other LLM orchestration frameworks
•Understanding of SaaS UX patterns
•Knowledge of training methodology and sports science

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