Monterail

Senior Fullstack Developer - Freelance (Ruby on Rails & React)

Monterail
Apply
2 months ago
Remote, Poland +9 moreSenior

Responsibilities

  • Build and ship developer-facing dashboards, billing UIs, documentation platforms, and other product features.
  • Own features from concept and implementation through production monitoring and post-release quality.
  • Propose solutions to customer problems rather than waiting for a predefined roadmap.
  • Work across the frontend and backend using React, TypeScript, Ruby on Rails, Node.js, and PostgreSQL.
  • Use AI coding assistants for planning, prototyping, and iteration while maintaining correctness and quality.
  • Communicate proactively, provide realistic estimates, meet commitments, and flag timeline risks early.

Requirements

  • Strong fullstack development skills with Ruby on Rails and React.
  • Experience working with TypeScript, including frontend development and Node.js services.
  • Ability to work independently in ambiguous situations and drive solutions with minimal hand-holding.
  • Strong ownership of the complete feature lifecycle and production outcomes.
  • Empathy for developers and a demonstrated focus on developer experience.
  • Fluent use of AI coding assistants with accountability for the quality of shipped work.
  • Design and UX intuition, including the ability to identify and challenge poor user flows.
  • Preferred: experience building developer-first products or B2D platforms.
  • Preferred: experience with product-led growth products.
  • Preferred: background in real-time, messaging, or infrastructure-adjacent products.

Benefits

  • Remote freelance engagement through the Monterail Tech Network.
  • Freelance collaboration on a B2B basis, embedded in the client’s team.
  • Start ASAP, with Monterail handling the partnership side.
Monterail

About Monterail

51-200 employees
Contact me