Intermediate-Senior Backend Engineer (Ruby), Plan: Spec-Driven Development

Employer shown to signed-in membersEuropeMid LevelBackend

Specialty

Backend

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The role

The company is hiring an Intermediate-Senior Backend Engineer (Ruby) for its Plan: Spec-Driven Development team, building agentic workflows that turn an intent into work items, plans and mergeable code. The four-person team is all-remote across Canada and Europe; the salary listed is for EU residents.

What you will do

  • Lead backend features from product discussions through design, rollout and post-launch learning
  • Build the flows, APIs and data models behind agent-generated work items, plans, specifications and code
  • Develop evaluation and benchmarking systems measuring workflow quality, token cost and success rate
  • Build production systems in Rails and Python with PostgreSQL, GraphQL and LLM APIs
  • Work with product, design, design partners and users to set scope
  • Mentor engineers and coordinate multi-person projects asynchronously

What they ask for

  • Strong Ruby on Rails experience in a large production codebase, plus production Python
  • Experience driving multi-month projects with several engineers
  • Product mindset: owning features end to end and learning from adoption
  • Full-stack background with backend focus; able to read modern frontend code
  • Strong API design and SQL fundamentals
  • Experience with AI-assisted development
  • Able to work independently across functions and regions

What they offer

  • Flexible paid time off
  • Equity compensation and Employee Stock Purchase Plan
  • Growth and Development Fund
  • All-remote, async-first work

This is our own short reading of the posting. The full description, and anything that has changed since, is on the employer's careers page behind the apply button.

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