Ruby on Rails Developer

Company: FRESH.
Apply for the Ruby on Rails Developer
Location: London
Job Description:

Salary: £58,000 – 98,000 per year

Requirements

  • Strong commercial experience with Ruby on Rails in production environments
  • Solid understanding of Rails monolith architecture and full-stack troubleshooting
  • Experience building and maintaining RESTful APIs
  • Strong knowledge of PostgreSQL, Redis, and Sidekiq
  • Comfortable working with AWS infrastructure
  • Experience using Docker in development or production environments

Responsibilities

  • Own technical direction and architecture decisions within our Rails application
  • Design, build, and maintain scalable backend services and RESTful APIs
  • Optimise background job processing using Sidekiq
  • Help improve onboarding scalability and reduce backend delivery bottlenecks
  • Identify technical risks early and balance trade-offs between speed, quality, and scope
  • Collaborate within a cross-functional product squad
  • Support and mentor engineers through technical leadership and problem-solving

Technologies

  • AWS
  • Backend
  • Docker
  • Support
  • PostgreSQL
  • Rails
  • Redis
  • Ruby
  • Cloud

More

We are a fast-growing B2B SaaS company building a next-generation data platform that delivers real-time insights to support passengers requiring assistance while travelling. We are hiring a Senior Developer to strengthen the core backend of our Passenger Assistance platform, helping us scale customer onboardings faster and reduce backend bottlenecks in feature delivery. This is a hybrid role based in London and offers the opportunity to step into technical leadership within a collaborative, high-growth environment while making a genuine impact.

last updated 33 week of 2026

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Posted: August 20th, 2026