Location: Remote (UK) Duration: 2-3 months Start: 21st July 2025 Engagement: Outside IR35 5 Years ember experience required (Minimum requirement)

The Opportunity A well-established financial services product business is looking for a Senior Ember.js Engineer to lead a critical upgrade project across its legacy Ember applications. These applications are part of a wider FX payments back-office platform, with components that have not been updated in several versions and are now reliant on unsupported versions of Ember.js and Node.js. This is a focused engineering engagement. You’ll work within a mono-repo ecosystem, modernising the codebase, resolving dependencies, and ensuring successful delivery of a clean, stable, and production-ready upgrade. What is Required. Working closely with internal engineering leadership and DevOps support, you will: Upgrade Ember.js from ~v3.20.5 to Ember 6.x (Octane) . Upgrade Node.js to v20+ across all associated packages. Migrate and validate shared packages within a monorepo (Lerna/Yarn Workspaces). Run and maintain comprehensive test coverage (unit, integration, and UAT). Identify an...