Ruby on Rails Upgrade Specialist

Ruby on Rails Upgrade Specialist - Paperclip to Active Storage - Rails v8 Upgrade

Ruby on Rails | Paperclip to Active Storage | Rails v8 Upgrade

We're working with a well-established technology leader undergoing a modernisation of their Ruby on Rails platform, they need someone who's been through this journey before.

Hybrid (2-3 days a weeks in Leeds office preferred). Contract length: Initial 3 months (potential extension). Rate £500-600 per day (Outside IR35.

The Challenge:

• Take an existing Rails 6 application and bring it up to a fully supported modern version (targeting Rails v8), with a key deliverable being the migration from Paperclip to Active Storage.
• You'll be the go-to expert, working directly with the internal tech team and senior stakeholders, owning the upgrade and helping future-proof the platform.

Key skills

• Proven experience upgrading Rails applications (especially Rails 6-7-8).
• Deep knowledge of Active Storage and Legacy file attachment systems like Paperclip.
• Strong Ruby and Rails engineering skills, with a focus on clean, maintainable code.
• Experience working in modern DevOps environments (CI/CD, GitHub Actions etc.).

Responsibilities

• Upgrade a Legacy Ruby on Rails 6 application to the latest supported version (Rails 8 targeted).
• Migrate file attachments from Paperclip to Active Storage.
• Handle breaking changes, gem updates, and codebase refactoring.
• Collaborate with engineering leads and stakeholders to ensure a clean, maintainable result.
• Advise on best practices around storage, deployment, and testing during the transition.