Remote Senior Ruby on Rails Engineer — Build Scalable Features

OnTheGoSystems Ltd.; United Kingdom; Remote; GBP 80,000 - 120,000; Full time

Benefits offered by this job

Fully remote

Great benefits

Mentorship & internal mobility

Job summary

OnTheGoSystems Ltd. is seeking a Senior Ruby on Rails Developer to own meaningful features and build reliable systems in a mature, high-trust engineering environment.

This remote, async-friendly role is for an experienced backend engineer who values code quality, testing, and long-term impact. You’ll own features from implementation to production, contribute to robust Rails systems at scale, and collaborate with product and fellow engineers to solve real user problems.

Qualifications

• 4+ years of professional experience with Ruby on Rails.
• Strong backend engineering skills and database experience.
• Experience writing and maintaining automated tests (unit, integration, and E2E).
• Experience building and running production systems.
• Availability during EMEA working hours.

Responsibilities

• Own features from implementation to production within a well-defined product scope.
• Build and maintain robust Ruby on Rails systems used at scale.
• Work closely with product and other engineers to solve real user problems.
• Write and maintain automated tests (unit, integration, and E2E).
• Improve performance, reliability, and maintainability of existing systems.
• Take responsibility for the quality and long-term health of what you build.

Skills

Ruby on Rails

Web APIs

CI/CD

AWS

Testing

Tools

Capybara

Job description

OnTheGoSystems Ltd. is seeking a Senior Ruby on Rails Developer to own meaningful features and build reliable systems in a mature, high-trust engineering environment.

This remote, async-friendly role is for an experienced backend engineer who values code quality, testing, and long-term impact. You’ll own features from implementation to production, contribute to robust Rails systems at scale, and collaborate with product and fellow engineers to solve real user problems.